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Enriching AFM with public domain Threat Intelligence
Tips on enhancing AFM with public domain Threat Intelligence
J_McInnes
Apr 05, 2023 Place Technical Articles
2.8KViews
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BIG-IP Next SPK: a Kubernetes native ingress and egress gateway for Telco workloads
BIG-IP Next SPK: a Kubernetes native ingress and egress gateway for Telco workloads that is CNF agnostic.
Ulises_Alonso
Sep 26, 2022 Place Technical Articles
2.8KViews
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The BIG-IP Application Security Manager Part 1: What is the ASM?
tl;dr - BIG-IP Application Security Manager (ASM) is a layer 7 web application firewall (WAF) available on F5's BIG-IP platforms. Introduction This article series was written a while back, but we are re-introducing it as a part of our Security Month on DevCentral. I hope you enjoy all the features of this very powerful module on the BIG-IP! This is the first of a 10-part series on the BIG-IP ASM. This module is a very powerful and effective tool for defending your applications and your peace of mind, but what is it really? And, how do you configure it correctly and efficiently? How can you take advantage of all the features it has to offer? Well, the purpose of this article series is to answer these fundamental questions. So, join me as we dive into this really cool technology called the BIG-IP ASM! The Basics The BIG-IP ASM is a Layer 7 ICSA-certified Web Application Firewall (WAF) that provides application security in traditional, virtual, and private cloud environments. It is built on TMOS...the universal product platform shared by all F5 BIG-IP products. It can run on any of the F5 Application Delivery Platforms...BIG-IP Virtual Edition, BIG-IP 2000 -> 11050, and all the VIPRION blades. It protects your applications from a myriad of network attacks including the OWASP Top 10 most critical web application security risks It is able to adapt to constantly-changing applications in very dynamic network environments It can run standalone or integrated with other modules like BIG-IP LTM, BIG-IP DNS, BIG-IP APM, etc Why A Layer 7 Firewall? Traditional network firewalls (Layer 3-4) do a great job preventing outsiders from accessing internal networks. But, these firewalls offer little to no support in the protection of application layer traffic. As David Holmes points out in his article series on F5 firewalls, threat vectors today are being introduced at all layers of the network. For example, the Slowloris and HTTP Flood attacks are Layer 7 attacks...a traditional network firewall would never stop these attacks. But, nonetheless, your application would still go down if/when it gets hit by one of these. So, it's important to defend your network with more than just a traditional Layer 3-4 firewall. That's where the ASM comes in... Some Key Features The ASM comes pre-loaded with over 2,200 attack signatures. These signatures form the foundation for the intelligence used to allow or block network traffic. If these 2,200+ signatures don't quite do the job for you, never fear...you can also build your own user-defined signatures. And, as we all know, network threats are always changing so the ASM is configured to download updated attack signatures on a regular basis. Also, the ASM offers several different policy building features. Policy building can be difficult and time consuming, especially for sites that have a large number of pages. For example, DevCentral has over 55,000 pages...who wants to hand-write the policy for that?!? No one has that kind of time. Instead, you can let the system automatically build your policy based on what it learns from your application traffic, you can manually build a policy based on what you know about your traffic, or you can use external security scanning tools (WhiteHat Sentinel, QualysGuard, IBM AppScan, Cenzic Hailstorm, etc) to build your policy. In addition, the ASM comes configured with pre-built policies for several popular applications (SharePoint, Exchange, Oracle Portal, Oracle Application, Lotus Domino, etc). Did you know? The BIG-IP ASM was the first WAF to integrate with a scanner. WhiteHat approached all the WAFs and asked about the concept of building a security policy around known vulnerabilities in the apps. All the other WAFs said "no"...F5 said "of course!" and thus began the first WAF-scanner integration. The ASM also utilizes Geolocation and IP address intelligence to allow for more sophisticated and targeted defense measures. You can allow/block users from specific locations around the world, and you can block IP addresses that have built a bad reputation on other sites around the Internet. If they were doing bad things on some other site, why let them access yours? The ASM is also built for Payment Card Industry Data Security Standard (PCI DSS) compliance. In fact, you can generate a real-time PCI compliance report at the click of a button! The ASM also comes loaded with the DataGuard feature that automatically blocks sensitive data (Credit Card numbers, SSN, etc) from being displayed in a browser. In addition to the PCI reports, you can generate on-demand charts and graphs that show just about every detail of traffic statistics that you need. The following screenshot is a representative sample of some real traffic that I pulled off a site that uses the ASM. Pretty powerful stuff! I could go on for days here...and I know you probably want me to, but I'll wrap it up for this first article. I hope you can see the value of the ASM both as a technical solution in the defense of your network and also a critical asset in the long-term strategic vision of your company. So, if you already have an ASM and want to know more about it or if you don't have one yet and want to see what you're missing, come on back for the next article where I will talk about the cool features of policy building. What is the BIG-IP ASM? Policy Building The Importance of File Types, Parameters, and URLs Attack Signatures XML Security IP Address Intelligence and Whitelisting Geolocation Data Guard Username and Session Awareness Tracking Event Logging
ltwagnon
Feb 02, 2017 Place Technical Articles
27KViews
4likes
6Comments
F5 Distributed Cloud Network Firewall Rule Evaluation and Packet Flow
Discover how requests get evaluated on an F5 XC node and how firewall policies are shared across different namespaces of a tenant.
bhushanpai
Jul 18, 2024 Place Technical Articles
292Views
2likes
1Comment
Orchestrated Infrastructure Security - Protocol Inspection with AFM
The F5 Beacon capabilities referenced in this article hosted on F5 Cloud Services are planning a migration to a new SaaS Platform - Check out the latest here. Introduction This article is part of a series on implementing Orchestrated Infrastructure Security. It includes High Availability, Central Management with BIG-IQ, Application Visibility with Beacon and the protection of critical assets using F5 Advanced WAF and Protocol Inspection (IPS) with AFM. It is assumed that SSL Orchestrator is already deployed, and basic network connectivity is working. If you need help setting up SSL Orchestrator for the first time, refer to the Dev/Central article series Implementing SSL Orchestrator here. This article focuses on configuring Protocol Inspection (IPS) with AFM deployed as a Layer 2 solution. It covers the configuration of Protocol Inspection on an F5 BIG-IP running version 16.0.0. Configuration of BIG-IP deployed as AFM can be downloaded from here from GitLab. Please forgive me for using SSL and TLS interchangeably in this article. This article is divided into the following high level sections: Protocol Inspection (IPS) with AFM Network Configuration Create an AFM Protocol Inspection Policy Attach Virtual Servers to an AFM Protocol Inspection Policy Protocol Inspection (IPS) with AFM: Network Configuration The BIG-IP will be deployed with VLAN Groups. This combines 2 interfaces to act as an L2 bridge where data flows into one interface and is passed out the other interface. From the F5 Configuration Utility go to Network > VLANs. Click Create on the right. Give it a name, ingress1 in this example. Set the Interface to 5.0. Set Tagging to Untagged then click Add. Interface 5.0 (untagged) should be visible like in the image below. Click Repeat at the bottom to create another VLAN. Note: In this example interface 5.0 will receive decrypted traffic from sslo1. Give it a name, egress1 in this example. Set the Interface to 6.0. Set Tagging to Untagged then click Add. Interface 6.0 (untagged) should be visible like in the image below. Click Finished when done. Note: In this example interface 6.0 will receive decrypted traffic from sslo1. Note: This guide assumes you are setting up a redundant pair of SSL Orchestrators. Therefore, you should repeat these steps to configure VLANs for the two interfaces connected to sslo2. These VLANs should be named in a way that you can differentiate them from the others. Example: ingress2 and egress2 It should look something like this when done: Note: In this example Interface 3.0 and 4.0 are physically connected to sslo2. Click VLAN Groups then Create on the right. Give it a name, vlg1 in this example. Move ingress1 and egress1 from Available to Members. Set the Transparency Mode to Transparent. Check the box to Bridge All Traffic then click Finished. Note: This guide assumes you are setting up a redundant pair of SSL Orchestrators. Therefore, you should repeat these steps to configure a VLAN Group for the two interfaces connected to sslo2. This VLAN Group should be named in a way that you can differentiate it from the other, example: vlg1 and vlg2. It should look like the image below: For full Layer 2 transparency the following CLI option needs to be enabled: (tmos)# modify sys db connection.vgl2transparent value enable Create an AFM Protocol Inspection Policy You can skip this step if you already have an AFM Protocol Inspection policy created and attached to one or more virtual servers. If not, we’ll cover it briefly. In this example we configured Protocol Inspection with Signatures and Compliance enabled. From Security select Protocol Security > Inspection Profiles > Add > New. Give it a name, IPS in this example. For Services, select the Protocol(s) you want to inspect, HTTP in this example. Optionally check the box to enable automatic updates and click Commit Changes to System. Attach Virtual Servers to an AFM Protocol Inspection Policy Attach the Protocol Inspection Profile to the Virtual Server(s) you wish to protect. From Local Traffic select Virtual Servers. Click the name of the Virtual Server you want to apply the profile to, 10.4.11.52 in this example. Click Security > Policies. Set the Protocol Inspection Profile to Enabled, then select the Profile created previously, IPS in this example. Click Update when done. Repeat this process to attach the IPS Profile to the remaining Virtual Servers. Summary In this article you learned how to configure BIG-IP in layer 2 transparency mode using VLAN groups. We also covered how to create an AFM Protocol Inspection policy and attach it to your Virtual Servers. Next Steps Click Next to proceed to the next article in the series.
KevinGallaugher
Oct 08, 2020 Place Technical Articles
550Views
1like
0Comments

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might expect of a network firewall, albeit with a focus on application visibility that only F5 can provide. One truism of application security in recent years (decades?) is while the effacacy of a traditional network firewall may have diminished (e.g. layer 4 constructs cannot address application security), a firewall is still a valuable tool for any application owner. Even considering the perimeter-less nature of modern organisations, a firewall provides the capability to discard malicious traffic that should never be allowed anywhere near your applications. Additionally, BIG-IP AFM can go far beyond static layer 4 policies. \n There are quite a few great BIG-IP AFM introductory documents for those that aren't familiar: \n \n https://techdocs.f5.com/en-us/bigip-15-0-0/big-ip-afm-getting-started.html \n https://clouddocs.f5.com/training/community/firewall/html/class1/class1.html \n \n IP Intelligence \n One of my favourite BIG-IP AFM features is IP intelligence. IP Intelligence is a categorised dynamic list of suspicious IP addresses. By identifying IP addresses and security categories associated with malicious activity, the IP Intelligence service can incorporate dynamic lists of malicious IP addresses into firewall policy, adding context to policy decisions. IP Intelligence service reduces risk and increases data center efficiency by eliminating the effort to process bad traffic. \n IP Intellgence provides the following default categories: \n \n Additional \n Appiq_badactors \n Application_denial_of_service \n Attacked_ips \n Botnets \n Denial_of_service \n Infected_sources \n Mobile_threats \n Phishing \n Scanners \n Spam_sources \n Tor_proxy \n Web_attacks \n Windows_exploits \n \n The IP Intelligence data is a dynamic list provided by a 3rd party (Webroot), and is commonly licensed in many network firewall (& NGFW) products under the guise of Threat Intelligence. It is a paid subscription service available with BIG-IP AFM (and/or AWAF). \n Public Domain Threat Intelligence sources \n There also exists many publically available Threat Intelligence resources, these are lists compiled by security engineers at the coalface of many security projects and organisations. Some notable sources include projects such as Spamhaus, Dshield & Abuse.ch. \n There are many potential sources of Threat Intelligence in the public domain. \n \n https://www.opendbl.net \n https://github.com/hslatman/awesome-threat-intelligence \n \n Below are some that I am using in my environment: \n \n https://www.binarydefense.com/banlist.txt \n http://rules.emergingthreats.net/fwrules/emerging-Block-IPs.txt \n https://gist.githubusercontent.com/BBcan177/bf29d47ea04391cb3eb0/raw/ \n https://danger.rulez.sk/projects/bruteforceblocker/blist.php \n \n To use such lists in BIG-IP AFM, we just need a URL we can query that returns a plain-text list of IPs (or subnets). \n Defining your own IP Intelligence feeds \n IP Intellgence allows security engineers to create and import their own feed of bad actors. Multiple feeds can be created, and custom categories can be assigned also. \n The following configuration is what I am using: \n security ip-intelligence feed-list custom_blocklist {\n feeds {\n binarydefense {\n default-blacklist-category binarydefense\n poll {\n url http://192.168.0.1/feed/binarydefense.txt\n }\n }\n emergingthreats {\n default-blacklist-category emergingthreats \n poll {\n url http://192.168.0.1/feed/emergingthreats.txt\n }\n }\n pfsense {\n default-blacklist-category pfsense\n poll {\n url http://192.168.0.1/feed/pfsense.txt\n }\n }\n }\n} \n Note that I am downloading my external feeds onto an management host (192.168.0.1), this is so that I can do some formatting changes to the data. The IP Intelligence feed service expects to receive a list of IPs (and/or subnets), in a CSV format. Often publically available blocklists have comments and other junk in them that confuse the poller. I have automated this into a number of cron jobs: \n In my configuration, I am using a separate category per blocklist. It is also possible to set a category for each IP in the feed, simply by populating a category as the second field in each line. E.g. '1.2.3.4,category2'. \n Example cron job on my management host: \n # Emergingthreats blocklist\n#\n* 5 * * * curl -s https://gist.githubusercontent.com/BBcan177/bf29d47ea04391cb3eb0/raw/ |egrep -v '^#' |awk '{print $1}' > /var/www/feed/pfsense.txt \n The grep & awk commands are to remove lines that start with a comment (#) and any additional fields after the IP. \n Firewall configuration \n There are several ways to configure IP Intelligence; you can configure it Globally, at a Route Domain level, on a Virtual Server and with BIG-IP AFM provisioned also in a firewall policy. The most common way to configure IP Intelligence is at a Global level, there is a nice guide on how to do that here: \n \n https://techdocs.f5.com/en-us/bigip-15-0-0/big-ip-afm-getting-started/afm-ip-intelligence-and-reputation.html \n \n I prefer to configure IP Intelligence at a firewall policy level, this allows more granularity on how to treat the individual IP Intelligence categories, and I can also combine the IP Intelligence information with other constructs such as particular destinations, ports or Geolocations. Below is an example firewall rule list: \n security firewall rule-list block_threat_intel {\n rules {\n block_threat_src {\n action drop\n ip-protocol any\n log yes\n source {\n ipi-category {\n additional\n appiq_badactors\n application_denial_of_service\n attacked_ips\n binarydefense\n botnets\n denial_of_service\n emergingthreats\n infected_sources\n mobile_threats\n pfsense\n phishing\n scanners\n spam_sources\n tor_proxy\n web_attacks\n windows_exploits\n }\n }\n }\n }\n} \n Is it working? \n As with any firewall policy change, the best way to see if it is working is to review the firewall logs: \n \n You can also use tmsh to view the category associated with any given IP address: \n root@(bigip1)(cfg-sync Standalone)(ModuleNotLicensed::Active)(/Common)(tmos)# show security ip-intelligence info address 188.93.229.73\nSecurity::IP Intelligence Address : 188.93.229.73\n Global context\n IP Intelligence Sources : User-defined\n Whitelisted (Source) : no\n Whitelisted (Destination) : no\n Policy Action (Source) : allow\n Policy Action (Destination) : allow\n Match Type : Source and Destination\n Categories (Source) (1) : pfsense\n Categories (Destination) (1) : pfsense\nroot@(bigip1)(cfg-sync Standalone)(ModuleNotLicensed::Active)(/Common)(tmos)# \n \n Conclusion \n What I find most interesting about all of the various available Threat Intelligence sources, is just how much of it there is, and also how not much of it completely overlaps. As you will see for yourself, there isn't 100% coverage in any single source. Each Threat Intelligence effort has its own strengths and unique view of the threat landscape. Sometimes this is due to obvious bias in the way the data is collected (e.g. Email providers are excellent at detecting spammers, perhaps not so good at detecting other attacks), alternatively, it may just be the size of the associated community or a regional bias. \n There are many factors involved, but as with most things, having more data is better. In the case of an edge firewall, more threat intelligence data equals better protection. \n Stay tuned for some upcoming articles on combining Threat Intelligence with WAF and nginx. \n ","body@stripHtml({\"removeProcessingText\":true,\"removeSpoilerMarkup\":true,\"removeTocMarkup\":true,\"truncateLength\":-1})@stringLength":"8230","kudosSumWeight":8,"repliesCount":1,"readOnly":false,"images":{"__typename":"AssociatedImageConnection","edges":[{"__typename":"AssociatedImageEdge","cursor":"MjUuMnwyLjF8b3wyNXxfTlZffDE","node":{"__ref":"AssociatedImage:{\"url\":\"https://community.f5.com/t5/s/zihoc95639/images/bS0zMTIyOTAtMjIxOTBpQzc3NTc1REYzNzUzRTNBNw?revision=6\"}"}},{"__typename":"AssociatedImageEdge","cursor":"MjUuMnwyLjF8b3wyNXxfTlZffDI","node":{"__ref":"AssociatedImage:{\"url\":\"https://community.f5.com/t5/s/zihoc95639/images/bS0zMTIyOTAtMjMwODhpMTVBNDdGOEE5MENGRTVDNw?revision=6\"}"}}],"totalCount":2,"pageInfo":{"__typename":"PageInfo","hasNextPage":false,"endCursor":null,"hasPreviousPage":false,"startCursor":null}},"videos":{"__typename":"VideoConnection","edges":[],"totalCount":0,"pageInfo":{"__typename":"PageInfo","hasNextPage":false,"endCursor":null,"hasPreviousPage":false,"startCursor":null}}},"Conversation:conversation:300547":{"__typename":"Conversation","id":"conversation:300547","topic":{"__typename":"TkbTopicMessage","uid":300547},"lastPostingActivityTime":"2024-10-27T14:23:00.033-07:00","solved":false},"User:user:303102":{"__typename":"User","uid":303102,"login":"Ulises_Alonso","registrationData":{"__typename":"RegistrationData","status":null},"deleted":false,"avatar":{"__typename":"UserAvatar","url":"https://community.f5.com/t5/s/zihoc95639/images/dS0zMDMxMDItNnNGUVZV?image-coordinates=90%2C0%2C517%2C427"},"id":"user:303102"},"AssociatedImage:{\"url\":\"https://community.f5.com/t5/s/zihoc95639/images/bS0zMDA1NDctMTkyNzdpMDI3MDVFRkJEN0I1QTYxOA?revision=12\"}":{"__typename":"AssociatedImage","url":"https://community.f5.com/t5/s/zihoc95639/images/bS0zMDA1NDctMTkyNzdpMDI3MDVFRkJEN0I1QTYxOA?revision=12","title":"Break or Extend Kubernetes.png","associationType":"TEASER","width":2088,"height":690,"altText":null},"AssociatedImage:{\"url\":\"https://community.f5.com/t5/s/zihoc95639/images/bS0zMDA1NDctMTkyNjVpNEI4MzY2QTI1OEFGQTBDRg?revision=12\"}":{"__typename":"AssociatedImage","url":"https://community.f5.com/t5/s/zihoc95639/images/bS0zMDA1NDctMTkyNjVpNEI4MzY2QTI1OEFGQTBDRg?revision=12","title":"Break or Extend Kubernetes.png","associationType":"BODY","width":2088,"height":690,"altText":null},"AssociatedImage:{\"url\":\"https://community.f5.com/t5/s/zihoc95639/images/bS0zMDA1NDctMTkyNjhpODdDQTI2MTg2MkNDQTY4Qg?revision=12\"}":{"__typename":"AssociatedImage","url":"https://community.f5.com/t5/s/zihoc95639/images/bS0zMDA1NDctMTkyNjhpODdDQTI2MTg2MkNDQTY4Qg?revision=12","title":"SPK-software-components.png","associationType":"BODY","width":2048,"height":1152,"altText":null},"AssociatedImage:{\"url\":\"https://community.f5.com/t5/s/zihoc95639/images/bS0zMDA1NDctMTkyNjZpN0FFQThCMkE5Q0E3QTNCRg?revision=12\"}":{"__typename":"AssociatedImage","url":"https://community.f5.com/t5/s/zihoc95639/images/bS0zMDA1NDctMTkyNjZpN0FFQThCMkE5Q0E3QTNCRg?revision=12","title":"SPK-general-architecture.png","associationType":"BODY","width":2086,"height":1172,"altText":null},"AssociatedImage:{\"url\":\"https://community.f5.com/t5/s/zihoc95639/images/bS0zMDA1NDctMTkyNzVpQUYzNTM1RTlGQjgyQTA2NA?revision=12\"}":{"__typename":"AssociatedImage","url":"https://community.f5.com/t5/s/zihoc95639/images/bS0zMDA1NDctMTkyNzVpQUYzNTM1RTlGQjgyQTA2NA?revision=12","title":"SPK-traffic-flows.png","associationType":"BODY","width":2048,"height":1128,"altText":null},"AssociatedImage:{\"url\":\"https://community.f5.com/t5/s/zihoc95639/images/bS0zMDA1NDctMTkyNzZpRUUyODNDMTMzMDc1NDEwMQ?revision=12\"}":{"__typename":"AssociatedImage","url":"https://community.f5.com/t5/s/zihoc95639/images/bS0zMDA1NDctMTkyNzZpRUUyODNDMTMzMDc1NDEwMQ?revision=12","title":"SPK-physical.png","associationType":"BODY","width":2048,"height":1128,"altText":null},"AssociatedImage:{\"url\":\"https://community.f5.com/t5/s/zihoc95639/images/bS0zMDA1NDctMTkyOTRpREUxNUNENUI4RjM3NjJDNw?revision=12\"}":{"__typename":"AssociatedImage","url":"https://community.f5.com/t5/s/zihoc95639/images/bS0zMDA1NDctMTkyOTRpREUxNUNENUI4RjM3NjJDNw?revision=12","title":"Data plane architecture - security.png","associationType":"BODY","width":2048,"height":1128,"altText":null},"TkbTopicMessage:message:300547":{"__typename":"TkbTopicMessage","subject":"BIG-IP Next SPK: a Kubernetes native ingress and egress gateway for Telco workloads","conversation":{"__ref":"Conversation:conversation:300547"},"id":"message:300547","revisionNum":12,"uid":300547,"depth":0,"board":{"__ref":"Tkb:board:TechnicalArticles"},"author":{"__ref":"User:user:303102"},"teaser@stripHtml({\"removeProcessingText\":true,\"truncateLength\":-1})":" BIG-IP Next SPK: a Kubernetes native ingress and egress gateway for Telco workloads that is CNF agnostic. \n ","introduction":"","metrics":{"__typename":"MessageMetrics","views":2830},"postTime":"2022-09-25T18:00:00.028-07:00","lastPublishTime":"2022-09-25T18:00:00.028-07:00","body@stripHtml({\"removeProcessingText\":true,\"removeSpoilerMarkup\":true,\"removeTocMarkup\":true,\"truncateLength\":-1})":" \n Kubernetes has a simplified networking model which was designed for general IT workloads which only use TCP/HTTP protocols, and a simplified networking model with a single IP address per POD (the smallest deployable unit of computing in Kubernetes) and a single external gateway. On the other hand, Telco deployments require: \n \n 3GPP protocols support. \n Transitional 4G to 5G facilities. \n Network capabilities to match Telco's networks by providing multiple external network connectivity, allowing different paths depending on the Network Function (NF), dynamic routing, etc... \n \n Hopefully, Kubernetes has been designed to be extensible yet it's up to the software and infrastructure architects to design solutions with good practices by following Kubernetes patterns. It´s usual that NF vendors use additional interfaces (multus CNI) for each NF PODs. By doing this, there is no dynamic advertising of addresses as the PODs in the deployment change or a good way to track these addresses outside the cluster by network elements such as firewalls. \n Alternatively, NF vendors try to hide this complexity by selling turn-key solutions with dedicated Kubernetes clusters for each NF or vendor. Therefore the customer ends up with multiple clusters typically disimilar, ultimately defeating the whole purpose of Kubernetes which aims to homogenize application's environment in a single platform. In a way, this this approach is equivalent to having a load balancer for each application. Also, the management of addresses by external network elements is still inaddecuate because identification of NFs is done in a coarse manner by identifying clusters' addresses. \n These two approaches break Kuberentes patterns by adding complexity in the form of non-homogenous networking to the different NFs. \n In this post we introduce F5 BIG-IP Next Service Proxy Kubernetes (SPK) -- BIG-IP Next SPK for short -- architecture which overcomes these limitations while being Network Functions-agnostic. We will use Red Hat's Openshift as reference platform. \n BIG-IP Next SPK software architecture \n BIG-IP Next SPK is a cloud-native solution which runs inside the Kubernetes cluster and is made out of independent components which can be scaled-out. It's headless software (no graphical UI) and it's managed using the Kubernetes API. The major software components are shown next. \n \n BIG-IP Next SPK's data plane makes use of the widely trusted BIG-IP’s Traffic Management Microkernel (TMM) data plane. This allows for a high performance, dependable product from the start. A dynamic routing component configures the BGP peering with the upstream routers for ECMP load distribution. The BFD feature for fast failure detection is available. The session persistence is a distributed database which allows to store connection related state such as pool member persistence, SNATs, NAT46 translations, etc... This database is backed in Kubernetes Persistent Volume which allows this information to be available even after POD restarts. The controller is the component which interacts with the Kubernetes API that customers use to configure BIG-IP Next SPK. Fluentd is a high-performance industry standard for exposing BIG-IP Next SPK metrics and logs to external tools. \n BIG-IP Next SPK network architecture \n The overall network architecture is shown next. Out of this picture we would like to emphasise the following items: \n \n Independent BIG-IP Next SPK instances, with completely different external network config, can handle ingress & egress traffic for each namespace individually. \n BIG-IP Next SPK is highly scalable at POD level (1-24 cores) and at cluster level, limited by the upstream ECMP capabilities. \n \n A more detailed view of the network path is shown next. From this diagram we want to emphasise: \n \n PODs make use of BIG-IP Next SPK transparently by continue using the CNI as usual. \n BIG-IP Next SPK is a single tier ingress/egress solution not requiring external LB. \n BIG-IP Next SPK has direct POD IP visibility, there is no kube-proxy or other IP-translating mechanism in between. \n \n \n As depicted above, BIG-IP Next SPK has two types of interfaces: external facing the upstream routers and internal facing the Kubernetes networking. Openshift's networking facilitates that using BIG-IP Next SPK in a cluster is optional in a per-namespace basis and this is done transparently to the applications. No change or configuration needs to be done in the applications. Openshift uses for its networking the OVNKubernetes CNI. It can be seen in the picture that the applications continue using the OVNKubernetes router as default and only gateway. \n Finally we will show a L2 view of the networks in a cluster with BIG-IP Next SPK. From this diagram we want to emphasise: \n \n How regular nodes hosting applications have no modifications either. \n How BIG-IP Next SPK is typically setup with link aggregations and SR-IOV wire-speed interfaces. \n How the L3 path between BIG-IP Next SPK and the application's nodes is validated by means of using BFD. \n \n \n Using BIG-IP Next SPK \n In order to use BIG-IP Next SPK no changes need to be done in the applications or in the namespace hosting the applications. At BIG-IP Next SPK configuration time we will instruct which namespace we want BIG-IP Next SPK to handle and voilà: BIG-IP Next SPK becomes the next-hop of OVNKubernetes router for that namespace. No labels or other artifacts need to be configured manually. \n Defining BIG-IP Next SPK services configurations is done thorugh the Kubernetes API using Custom Resource Definitions (CRDs). At time of this writting the following resources are avaiilable: \n \n \n \n \n F5SPKIngressTCP Manages ingress layer 4 TCP application traffic. \n F5SPKIngressUDP Manages ingress layer 4 UDP application traffic. \n F5SPKIngressDiameter Manages Diameter traffic unifying ingress and egress traffic using either TCP or SCTP and keeps sessions persistent using the SESSION-ID attribute value pair (AVP) by default. \n F5SPKIngressNGAP Balances ingress datagram loads for SCTP or NG application protocol (NGAP) signaling. \n F5SPKEgress Enables egress traffic for pods using SNAT or DNS/NAT46. DNS cache and rate limiting parameters can be configured. \n F5SPKSnatpool Allocates IP addresses for egress pod connections. \n F5SPKDNSCache Provides high-performance, transparent DNS resolution and caching for the F5SPKEgress resources. \n F5SPKPortListandF5SPKAddressList Creates sets of ports and addresses, respectively, to make creating and updating services easier. \n \n Besides the above resource list we would like to highlight 3 functionalities that should not be overlooked: \n \n IPv6 support\n \n \n \n BIG-IP Next SPK fully supports IPv4/IPv6 dual-stack networking as implemented in Kubernetes v1.21 or later. BIG-IP Next SPK’s DNS46/NAT46 feature, however, does not rely on Kubernetes IPv4/IPv6 dual-stack and therefore, it can be used with earlier versions of Kubernetes. \n \n \n \n \n DNS46/NAT46 translation \n \n \n The adoption of IPv6 in new 5G deployments has created a need to interact with older IPv4 single stack components and services. BIG-IP Next SPK’s DNS46/NAT46 provides this interoperability, easing the adoption and transition between IPv4 and IPv6 services. This solution allows IPv4 applications to access any IPv6 application on demand, without requiring reconfiguration. \n \n \n \n Application hairpinning The application hairpinning feature is used to differentiate between internal and external clients. A selected set of internal clients accesses an BIG-IP Next SPK Service with the same domain name or IP address as that of another BIG-IP Next SPK Service, which is used by external clients using different configurations. The key difference between the two types of connections is that internal clients are connected using SNAT and external clients are not. This is done by installing two BIG-IP Next SPK CRs of the same type, for example F5SPKIngressTCP, with each CR enabled on a selected VLAN or VLAN list. \n \n ´BIG-IP Next SPKs roadmap \n In the upcoming releases BIG-IP Next SPK will continue expanding its traffic management capabilities by exposing more TMM capabilities through the Kubernetes API, noticiably HTTP/2. \n Also, BIG-IP Next SPK will be gaining more security oriented features. At present it is being targeted the following features: \n \n Firewall \n DDoS protection \n WAF \n \n These security features are specially useful because BIG-IP Next SPK constitutes a security boundary with respect of all the workloads in the cluster and kubernetes itself (CNI, API, basic node management). Although BIG-IP Next SPK is running inside the Kubernetes cluster, it is the only software that manages the external network interfaces at L3. This is depicted in the next figure. \n \n \n These security features have been available for long time in BIG-IP products and at present we are capturing customers´ input to design the best APIs possible for exposing these functionalities following Kubernetes patterns. \n Conclusion \n \n \n \n This article introduces a scalable and dependable high performance gateway solution that delivers the granular ingress and egress controls in Kubernetes-based deployments that Telcos need. It builds on the unique potential of OpenShift external gateways by making full use of OpenShift capabilities—an industry first. Use cases that particularly benefit include 5GC and MEC. Plus, the BIG-IP Next SPK solution can dynamically translate IPv4 to IPv6 network addresses, which solves the problem of mixed IPv4 and IPv6 deployments. The result is a gateway solution flexible enough to adapt to new and evolving Telco needs while offering interoperability with pre-5G services. For additional information please check the RedHat & F5 co-written white paper F5 Telco Gateway for Red Hat OpenShift and the official BIG-IP Next SPK documentation. \n \n \n \n \n \n \n \n ","body@stripHtml({\"removeProcessingText\":true,\"removeSpoilerMarkup\":true,\"removeTocMarkup\":true,\"truncateLength\":-1})@stringLength":"10027","kudosSumWeight":5,"repliesCount":1,"readOnly":false,"images":{"__typename":"AssociatedImageConnection","edges":[{"__typename":"AssociatedImageEdge","cursor":"MjUuMnwyLjF8b3wyNXxfTlZffDE","node":{"__ref":"AssociatedImage:{\"url\":\"https://community.f5.com/t5/s/zihoc95639/images/bS0zMDA1NDctMTkyNzdpMDI3MDVFRkJEN0I1QTYxOA?revision=12\"}"}},{"__typename":"AssociatedImageEdge","cursor":"MjUuMnwyLjF8b3wyNXxfTlZffDI","node":{"__ref":"AssociatedImage:{\"url\":\"https://community.f5.com/t5/s/zihoc95639/images/bS0zMDA1NDctMTkyNjVpNEI4MzY2QTI1OEFGQTBDRg?revision=12\"}"}},{"__typename":"AssociatedImageEdge","cursor":"MjUuMnwyLjF8b3wyNXxfTlZffDM","node":{"__ref":"AssociatedImage:{\"url\":\"https://community.f5.com/t5/s/zihoc95639/images/bS0zMDA1NDctMTkyNjhpODdDQTI2MTg2MkNDQTY4Qg?revision=12\"}"}},{"__typename":"AssociatedImageEdge","cursor":"MjUuMnwyLjF8b3wyNXxfTlZffDQ","node":{"__ref":"AssociatedImage:{\"url\":\"https://community.f5.com/t5/s/zihoc95639/images/bS0zMDA1NDctMTkyNjZpN0FFQThCMkE5Q0E3QTNCRg?revision=12\"}"}},{"__typename":"AssociatedImageEdge","cursor":"MjUuMnwyLjF8b3wyNXxfTlZffDU","node":{"__ref":"AssociatedImage:{\"url\":\"https://community.f5.com/t5/s/zihoc95639/images/bS0zMDA1NDctMTkyNzVpQUYzNTM1RTlGQjgyQTA2NA?revision=12\"}"}},{"__typename":"AssociatedImageEdge","cursor":"MjUuMnwyLjF8b3wyNXxfTlZffDY","node":{"__ref":"AssociatedImage:{\"url\":\"https://community.f5.com/t5/s/zihoc95639/images/bS0zMDA1NDctMTkyNzZpRUUyODNDMTMzMDc1NDEwMQ?revision=12\"}"}},{"__typename":"AssociatedImageEdge","cursor":"MjUuMnwyLjF8b3wyNXxfTlZffDc","node":{"__ref":"AssociatedImage:{\"url\":\"https://community.f5.com/t5/s/zihoc95639/images/bS0zMDA1NDctMTkyOTRpREUxNUNENUI4RjM3NjJDNw?revision=12\"}"}}],"totalCount":7,"pageInfo":{"__typename":"PageInfo","hasNextPage":false,"endCursor":null,"hasPreviousPage":false,"startCursor":null}},"videos":{"__typename":"VideoConnection","edges":[],"totalCount":0,"pageInfo":{"__typename":"PageInfo","hasNextPage":false,"endCursor":null,"hasPreviousPage":false,"startCursor":null}}},"Conversation:conversation:279752":{"__typename":"Conversation","id":"conversation:279752","topic":{"__typename":"TkbTopicMessage","uid":279752},"lastPostingActivityTime":"2019-03-18T15:55:45.000-07:00","solved":false},"User:user:56738":{"__typename":"User","uid":56738,"login":"ltwagnon","registrationData":{"__typename":"RegistrationData","status":null},"deleted":false,"avatar":{"__typename":"UserAvatar","url":"https://community.f5.com/t5/s/zihoc95639/images/dS01NjczOC0xNjM3OGk3QkQ0M0UxRDAzRDEzMDg3"},"id":"user:56738"},"AssociatedImage:{\"url\":\"https://community.f5.com/t5/s/zihoc95639/images/bS0yNzk3NTItMTI1ODhpOUIwMzkwRERDMDU5MTBGOQ?revision=1\"}":{"__typename":"AssociatedImage","url":"https://community.f5.com/t5/s/zihoc95639/images/bS0yNzk3NTItMTI1ODhpOUIwMzkwRERDMDU5MTBGOQ?revision=1","title":"0151T000003d5rsQAA.png","associationType":"BODY","width":950,"height":40,"altText":null},"AssociatedImage:{\"url\":\"https://community.f5.com/t5/s/zihoc95639/images/bS0yNzk3NTItMTQ4NDJpNDcyOTMwNzFBNTMzQ0IzMw?revision=1\"}":{"__typename":"AssociatedImage","url":"https://community.f5.com/t5/s/zihoc95639/images/bS0yNzk3NTItMTQ4NDJpNDcyOTMwNzFBNTMzQ0IzMw?revision=1","title":"0151T000003d5rtQAA.jpg","associationType":"BODY","width":1139,"height":516,"altText":null},"TkbTopicMessage:message:279752":{"__typename":"TkbTopicMessage","subject":"The BIG-IP Application Security Manager Part 1: What is the ASM?","conversation":{"__ref":"Conversation:conversation:279752"},"id":"message:279752","revisionNum":1,"uid":279752,"depth":0,"board":{"__ref":"Tkb:board:TechnicalArticles"},"author":{"__ref":"User:user:56738"},"teaser@stripHtml({\"removeProcessingText\":true,\"truncateLength\":-1})":"","introduction":"","metrics":{"__typename":"MessageMetrics","views":26692},"postTime":"2017-02-02T05:00:00.000-08:00","lastPublishTime":"2017-02-02T05:00:00.000-08:00","body@stripHtml({\"removeProcessingText\":true,\"removeSpoilerMarkup\":true,\"removeTocMarkup\":true,\"truncateLength\":-1})":" \n\n tl;dr - BIG-IP Application Security Manager (ASM) is a layer 7 web application firewall (WAF) available on F5's BIG-IP platforms. \n\n Introduction \n\n This article series was written a while back, but we are re-introducing it as a part of our Security Month on DevCentral. I hope you enjoy all the features of this very powerful module on the BIG-IP! \n\n This is the first of a 10-part series on the BIG-IP ASM. This module is a very powerful and effective tool for defending your applications and your peace of mind, but what is it really? And, how do you configure it correctly and efficiently? How can you take advantage of all the features it has to offer? Well, the purpose of this article series is to answer these fundamental questions. So, join me as we dive into this really cool technology called the BIG-IP ASM! \n\n The Basics \n\n The BIG-IP ASM is a Layer 7 ICSA-certified Web Application Firewall (WAF) that provides application security in traditional, virtual, and private cloud environments. It is built on TMOS...the universal product platform shared by all F5 BIG-IP products. It can run on any of the F5 Application Delivery Platforms...BIG-IP Virtual Edition, BIG-IP 2000 -> 11050, and all the VIPRION blades. It protects your applications from a myriad of network attacks including the OWASP Top 10 most critical web application security risks It is able to adapt to constantly-changing applications in very dynamic network environments It can run standalone or integrated with other modules like BIG-IP LTM, BIG-IP DNS, BIG-IP APM, etc \n\n Why A Layer 7 Firewall? \n\n Traditional network firewalls (Layer 3-4) do a great job preventing outsiders from accessing internal networks. But, these firewalls offer little to no support in the protection of application layer traffic. As David Holmes points out in his article series on F5 firewalls, threat vectors today are being introduced at all layers of the network. For example, the Slowloris and HTTP Flood attacks are Layer 7 attacks...a traditional network firewall would never stop these attacks. But, nonetheless, your application would still go down if/when it gets hit by one of these. So, it's important to defend your network with more than just a traditional Layer 3-4 firewall. That's where the ASM comes in... \n\n Some Key Features \n\n The ASM comes pre-loaded with over 2,200 attack signatures. These signatures form the foundation for the intelligence used to allow or block network traffic. If these 2,200+ signatures don't quite do the job for you, never fear...you can also build your own user-defined signatures. And, as we all know, network threats are always changing so the ASM is configured to download updated attack signatures on a regular basis. \n\n Also, the ASM offers several different policy building features. Policy building can be difficult and time consuming, especially for sites that have a large number of pages. For example, DevCentral has over 55,000 pages...who wants to hand-write the policy for that?!? No one has that kind of time. Instead, you can let the system automatically build your policy based on what it learns from your application traffic, you can manually build a policy based on what you know about your traffic, or you can use external security scanning tools (WhiteHat Sentinel, QualysGuard, IBM AppScan, Cenzic Hailstorm, etc) to build your policy. In addition, the ASM comes configured with pre-built policies for several popular applications (SharePoint, Exchange, Oracle Portal, Oracle Application, Lotus Domino, etc). \n\n \n Did you know? The BIG-IP ASM was the first WAF to integrate with a scanner. WhiteHat approached all the WAFs and asked about the concept of building a security policy around known vulnerabilities in the apps. All the other WAFs said \"no\"...F5 said \"of course!\" and thus began the first WAF-scanner integration. \n \n\n The ASM also utilizes Geolocation and IP address intelligence to allow for more sophisticated and targeted defense measures. You can allow/block users from specific locations around the world, and you can block IP addresses that have built a bad reputation on other sites around the Internet. If they were doing bad things on some other site, why let them access yours? \n\n The ASM is also built for Payment Card Industry Data Security Standard (PCI DSS) compliance. In fact, you can generate a real-time PCI compliance report at the click of a button! The ASM also comes loaded with the DataGuard feature that automatically blocks sensitive data (Credit Card numbers, SSN, etc) from being displayed in a browser. \n\n In addition to the PCI reports, you can generate on-demand charts and graphs that show just about every detail of traffic statistics that you need. The following screenshot is a representative sample of some real traffic that I pulled off a site that uses the ASM. Pretty powerful stuff! \n\n \n\n I could go on for days here...and I know you probably want me to, but I'll wrap it up for this first article. I hope you can see the value of the ASM both as a technical solution in the defense of your network and also a critical asset in the long-term strategic vision of your company. \n\n So, if you already have an ASM and want to know more about it or if you don't have one yet and want to see what you're missing, come on back for the next article where I will talk about the cool features of policy building. \n\n What is the BIG-IP ASM? Policy Building The Importance of File Types, Parameters, and URLs Attack Signatures XML Security IP Address Intelligence and Whitelisting Geolocation Data Guard Username and Session Awareness Tracking Event Logging \n\n ","body@stripHtml({\"removeProcessingText\":true,\"removeSpoilerMarkup\":true,\"removeTocMarkup\":true,\"truncateLength\":-1})@stringLength":"5685","kudosSumWeight":4,"repliesCount":6,"readOnly":false,"images":{"__typename":"AssociatedImageConnection","edges":[{"__typename":"AssociatedImageEdge","cursor":"MjUuMnwyLjF8b3wyNXxfTlZffDE","node":{"__ref":"AssociatedImage:{\"url\":\"https://community.f5.com/t5/s/zihoc95639/images/bS0yNzk3NTItMTI1ODhpOUIwMzkwRERDMDU5MTBGOQ?revision=1\"}"}},{"__typename":"AssociatedImageEdge","cursor":"MjUuMnwyLjF8b3wyNXxfTlZffDI","node":{"__ref":"AssociatedImage:{\"url\":\"https://community.f5.com/t5/s/zihoc95639/images/bS0yNzk3NTItMTQ4NDJpNDcyOTMwNzFBNTMzQ0IzMw?revision=1\"}"}}],"totalCount":2,"pageInfo":{"__typename":"PageInfo","hasNextPage":false,"endCursor":null,"hasPreviousPage":false,"startCursor":null}},"videos":{"__typename":"VideoConnection","edges":[],"totalCount":0,"pageInfo":{"__typename":"PageInfo","hasNextPage":false,"endCursor":null,"hasPreviousPage":false,"startCursor":null}}},"Conversation:conversation:331032":{"__typename":"Conversation","id":"conversation:331032","topic":{"__typename":"TkbTopicMessage","uid":331032},"lastPostingActivityTime":"2024-07-28T00:21:20.263-07:00","solved":false},"User:user:420638":{"__typename":"User","uid":420638,"login":"bhushanpai","registrationData":{"__typename":"RegistrationData","status":null},"deleted":false,"avatar":{"__typename":"UserAvatar","url":"https://community.f5.com/t5/s/zihoc95639/images/dS00MjA2MzgtSTBjelV4?image-coordinates=0%2C41%2C958%2C999"},"id":"user:420638"},"AssociatedImage:{\"url\":\"https://community.f5.com/t5/s/zihoc95639/images/bS0zMzEwMzItU0lFY2Jo?revision=3\"}":{"__typename":"AssociatedImage","url":"https://community.f5.com/t5/s/zihoc95639/images/bS0zMzEwMzItU0lFY2Jo?revision=3","title":"clipboard_image-1-1719462479619.png","associationType":"BODY","width":888,"height":1026,"altText":""},"AssociatedImage:{\"url\":\"https://community.f5.com/t5/s/zihoc95639/images/bS0zMzEwMzIta0p0YmRP?revision=3\"}":{"__typename":"AssociatedImage","url":"https://community.f5.com/t5/s/zihoc95639/images/bS0zMzEwMzIta0p0YmRP?revision=3","title":"clipboard_image-2-1719462479627.png","associationType":"BODY","width":1431,"height":838,"altText":""},"AssociatedImage:{\"url\":\"https://community.f5.com/t5/s/zihoc95639/images/bS0zMzEwMzItVW5YWGg0?revision=3\"}":{"__typename":"AssociatedImage","url":"https://community.f5.com/t5/s/zihoc95639/images/bS0zMzEwMzItVW5YWGg0?revision=3","title":"clipboard_image-3-1719462479632.png","associationType":"BODY","width":1429,"height":784,"altText":""},"AssociatedImage:{\"url\":\"https://community.f5.com/t5/s/zihoc95639/images/bS0zMzEwMzIteURCMVpk?revision=3\"}":{"__typename":"AssociatedImage","url":"https://community.f5.com/t5/s/zihoc95639/images/bS0zMzEwMzIteURCMVpk?revision=3","title":"clipboard_image-4-1719462479638.png","associationType":"BODY","width":1796,"height":574,"altText":""},"AssociatedImage:{\"url\":\"https://community.f5.com/t5/s/zihoc95639/images/bS0zMzEwMzItTUdGb0xn?revision=3\"}":{"__typename":"AssociatedImage","url":"https://community.f5.com/t5/s/zihoc95639/images/bS0zMzEwMzItTUdGb0xn?revision=3","title":"clipboard_image-5-1719462479650.png","associationType":"BODY","width":2378,"height":630,"altText":""},"AssociatedImage:{\"url\":\"https://community.f5.com/t5/s/zihoc95639/images/bS0zMzEwMzItcHVBc3NV?revision=3\"}":{"__typename":"AssociatedImage","url":"https://community.f5.com/t5/s/zihoc95639/images/bS0zMzEwMzItcHVBc3NV?revision=3","title":"clipboard_image-6-1719462479658.png","associationType":"BODY","width":2378,"height":386,"altText":""},"AssociatedImage:{\"url\":\"https://community.f5.com/t5/s/zihoc95639/images/bS0zMzEwMzItNjRpeTFk?revision=3\"}":{"__typename":"AssociatedImage","url":"https://community.f5.com/t5/s/zihoc95639/images/bS0zMzEwMzItNjRpeTFk?revision=3","title":"clipboard_image-7-1719462479668.png","associationType":"BODY","width":1712,"height":774,"altText":""},"TkbTopicMessage:message:331032":{"__typename":"TkbTopicMessage","subject":"F5 Distributed Cloud Network Firewall Rule Evaluation and Packet Flow","conversation":{"__ref":"Conversation:conversation:331032"},"id":"message:331032","revisionNum":3,"uid":331032,"depth":0,"board":{"__ref":"Tkb:board:TechnicalArticles"},"author":{"__ref":"User:user:420638"},"teaser@stripHtml({\"removeProcessingText\":true,\"truncateLength\":-1})":" Discover how requests get evaluated on an F5 XC node and how firewall policies are shared across different namespaces of a tenant. ","introduction":"","metrics":{"__typename":"MessageMetrics","views":292},"postTime":"2024-07-18T05:00:00.032-07:00","lastPublishTime":"2024-07-18T05:00:00.032-07:00","body@stripHtml({\"removeProcessingText\":true,\"removeSpoilerMarkup\":true,\"removeTocMarkup\":true,\"truncateLength\":-1})":" Overview \n Traditionally, the network firewall consists of policies that get applied to a network or an interface on the network. This worked fine in legacy environments, but having the knowledge of individual networks and interfaces in a dynamic multi-cloud environment is difficult. So, the F5 Distributed Cloud (XC) Network Firewall simplifies this by allowing users to specify the intent and abstract the network topologies and address assignments. \n This document discusses how requests get evaluated on a F5 XC node and how firewall policies are shared across different namespaces of a tenant. \n F5 XC Network Firewall supports two types of policies: \n \n Firewall Policies \n Enhanced Firewall Policies \n \n Also, each of these can be created in the system namespace and applied to a F5 XC node, created in the shared namespace to be applied to any vk8s cluster, or created in the application namespace to be applied to the vk8s associated with the namespace only. Network Firewall can have only one type of policy at a time. \n \n Note: It is recommended to use Enhanced Firewall Policies for applying it to the F5 XC nodes, as it supports service insertion and segmentation, in addition to the existing functionalities of regular Firewall Policies. \n \n Evaluation of rules \n Firewall Policy is comprised of three main concepts: \n \n Endpoint (Local or Remote) \n Ingress Rules \n Egress Rules \n \n Enhanced Firewall policy has no separate list for ingress and egress rules. Instead, it has an ordered list of rules with source, destination, and match criteria. \n The firewall policies are evaluated sequentially when the Firewall policies are activated on a site. Processing stops when a rule is matched, and the corresponding action is applied to the traffic. If none of the rules match, the default behavior is to drop the packet silently. \n \n \n \n If the Endpoint specified in the policy matches the destination in the Policy, the ingress rule is evaluated. The egress rule is evaluated for traffic where the source matches the endpoint in the Policy. \n Firewall Policy – Allowed actions in rules \n For an ingress rule, if the traffic source matches the endpoint in the rule, or for an egress rule if the traffic destination matches the endpoint in the rule, the corresponding action is applied to the traffic. Allowed actions are ‘Allow’ (traffic is sent to L7 processing) or ‘Deny’ (traffic is dropped) \n \n Enhanced Firewall Policy – Allowed actions in rules \n For Enhanced Firewall Policy the rules are evaluated against all traffic to match with the source, destination, and criteria specified in the rule. But in addition to ‘Allow’ and ‘Deny’ actions, it can also ‘Insert Service’ i.e., steer the traffic to an external Network Function Virtualization (NFV) service. \n \n \n Note: This traffic steering feature is currently supported only for the Palo Alto network firewall and on an AWS TGW Site. \n \n Virtual Kubernetes Network Policies \n The Firewall policies are called Network Policies in the context of vk8s. The Network policies get applied to all the sites in the vk8. If the individual site also has active Firewall policies, the traffic is evaluated against all policies in both the Firewall policies and vk8s Network policies. \n \n Enhanced Firewall policy is not currently supported for vk8s. \n \n Shared Network Policy and policy inheritance \n Network Policy created under the Shared Configurations in the console becomes part of the shared namespace of the tenant. These policies are available to all application namespaces but are not active by default. Shared Network Policies are visible in the application namespace but are not editable in the namespace view. Security admin for the tenant can create common security policies using this construct in Shared Configurations and allow each application namespace to inherit it. This way any change to these policies can be immediately applied to all apps where the policy is made active. \n \n Note: Only vk8s Network Policy can be created in Shared Configurations. Enhanced Firewall policy is not supported as a Shared Configuration. \n \n Network Policy in application namespace \n Network Policy created in the application namespace can only be used for k8s associated with the namespace. These cannot be shared with any other namespace. \n Network Policy Examples \n Consider a scenario as shown in the figure below: \n \n CE1 and CE2 are connected by a Global Network so instances in VPC1 and VPC2 can directly route to each other. Firewall policies are active on CE2 with rules as shown below: \n \n \n \n When C1 tries to access an application on TCP port 80 on S1, it gets dropped. But when it tries to access an application on TCP port 8000 it is allowed. This can be seen in the traffic capture taken on CE2: \n \n Traffic is allowed to leave CE1 but gets blocked at CE2 where the policies are active. \n Note that the traffic that is not blocked is evaluated against Policy 2 with Allow all rules. Without this policy, all traffic will be denied by default. ","body@stripHtml({\"removeProcessingText\":true,\"removeSpoilerMarkup\":true,\"removeTocMarkup\":true,\"truncateLength\":-1})@stringLength":"5063","kudosSumWeight":2,"repliesCount":1,"readOnly":false,"images":{"__typename":"AssociatedImageConnection","edges":[{"__typename":"AssociatedImageEdge","cursor":"MjUuMnwyLjF8b3wyNXxfTlZffDE","node":{"__ref":"AssociatedImage:{\"url\":\"https://community.f5.com/t5/s/zihoc95639/images/bS0zMzEwMzItU0lFY2Jo?revision=3\"}"}},{"__typename":"AssociatedImageEdge","cursor":"MjUuMnwyLjF8b3wyNXxfTlZffDI","node":{"__ref":"AssociatedImage:{\"url\":\"https://community.f5.com/t5/s/zihoc95639/images/bS0zMzEwMzIta0p0YmRP?revision=3\"}"}},{"__typename":"AssociatedImageEdge","cursor":"MjUuMnwyLjF8b3wyNXxfTlZffDM","node":{"__ref":"AssociatedImage:{\"url\":\"https://community.f5.com/t5/s/zihoc95639/images/bS0zMzEwMzItVW5YWGg0?revision=3\"}"}},{"__typename":"AssociatedImageEdge","cursor":"MjUuMnwyLjF8b3wyNXxfTlZffDQ","node":{"__ref":"AssociatedImage:{\"url\":\"https://community.f5.com/t5/s/zihoc95639/images/bS0zMzEwMzIteURCMVpk?revision=3\"}"}},{"__typename":"AssociatedImageEdge","cursor":"MjUuMnwyLjF8b3wyNXxfTlZffDU","node":{"__ref":"AssociatedImage:{\"url\":\"https://community.f5.com/t5/s/zihoc95639/images/bS0zMzEwMzItTUdGb0xn?revision=3\"}"}},{"__typename":"AssociatedImageEdge","cursor":"MjUuMnwyLjF8b3wyNXxfTlZffDY","node":{"__ref":"AssociatedImage:{\"url\":\"https://community.f5.com/t5/s/zihoc95639/images/bS0zMzEwMzItcHVBc3NV?revision=3\"}"}},{"__typename":"AssociatedImageEdge","cursor":"MjUuMnwyLjF8b3wyNXxfTlZffDc","node":{"__ref":"AssociatedImage:{\"url\":\"https://community.f5.com/t5/s/zihoc95639/images/bS0zMzEwMzItNjRpeTFk?revision=3\"}"}}],"totalCount":7,"pageInfo":{"__typename":"PageInfo","hasNextPage":false,"endCursor":null,"hasPreviousPage":false,"startCursor":null}},"videos":{"__typename":"VideoConnection","edges":[],"totalCount":0,"pageInfo":{"__typename":"PageInfo","hasNextPage":false,"endCursor":null,"hasPreviousPage":false,"startCursor":null}}},"Conversation:conversation:285623":{"__typename":"Conversation","id":"conversation:285623","topic":{"__typename":"TkbTopicMessage","uid":285623},"lastPostingActivityTime":"2022-08-11T10:31:46.742-07:00","solved":false},"User:user:129415":{"__typename":"User","uid":129415,"login":"KevinGallaugher","registrationData":{"__typename":"RegistrationData","status":null},"deleted":false,"avatar":{"__typename":"UserAvatar","url":"https://community.f5.com/t5/s/zihoc95639/images/dS0xMjk0MTUtNU4zOHUz?image-coordinates=0%2C0%2C360%2C360"},"id":"user:129415"},"AssociatedImage:{\"url\":\"https://community.f5.com/t5/s/zihoc95639/images/bS0yODU2MjMtODUzOGkxMjRGODY4RkM1NjEyN0VB?revision=3\"}":{"__typename":"AssociatedImage","url":"https://community.f5.com/t5/s/zihoc95639/images/bS0yODU2MjMtODUzOGkxMjRGODY4RkM1NjEyN0VB?revision=3","title":"0151T000003pk0iQAA.png","associationType":"BODY","width":1439,"height":717,"altText":null},"AssociatedImage:{\"url\":\"https://community.f5.com/t5/s/zihoc95639/images/bS0yODU2MjMtMTUzNzZpRjJDMzQyMzk5MTgwQjgyNQ?revision=3\"}":{"__typename":"AssociatedImage","url":"https://community.f5.com/t5/s/zihoc95639/images/bS0yODU2MjMtMTUzNzZpRjJDMzQyMzk5MTgwQjgyNQ?revision=3","title":"0151T000003pk0nQAA.png","associationType":"BODY","width":633,"height":582,"altText":null},"AssociatedImage:{\"url\":\"https://community.f5.com/t5/s/zihoc95639/images/bS0yODU2MjMtMjQ2NmkxNEMwOTI4M0Q3MDZCNUNG?revision=3\"}":{"__typename":"AssociatedImage","url":"https://community.f5.com/t5/s/zihoc95639/images/bS0yODU2MjMtMjQ2NmkxNEMwOTI4M0Q3MDZCNUNG?revision=3","title":"0151T000003pk0sQAA.png","associationType":"BODY","width":520,"height":567,"altText":null},"AssociatedImage:{\"url\":\"https://community.f5.com/t5/s/zihoc95639/images/bS0yODU2MjMtNjYzOWkwOENBMTkyMkZBQTBEQTFB?revision=3\"}":{"__typename":"AssociatedImage","url":"https://community.f5.com/t5/s/zihoc95639/images/bS0yODU2MjMtNjYzOWkwOENBMTkyMkZBQTBEQTFB?revision=3","title":"0151T000003pk0xQAA.png","associationType":"BODY","width":875,"height":136,"altText":null},"AssociatedImage:{\"url\":\"https://community.f5.com/t5/s/zihoc95639/images/bS0yODU2MjMtMTExOTJpRDg3MTI2QjNGRkY3RDkyRQ?revision=3\"}":{"__typename":"AssociatedImage","url":"https://community.f5.com/t5/s/zihoc95639/images/bS0yODU2MjMtMTExOTJpRDg3MTI2QjNGRkY3RDkyRQ?revision=3","title":"0151T000003pk12QAA.png","associationType":"BODY","width":1113,"height":218,"altText":null},"AssociatedImage:{\"url\":\"https://community.f5.com/t5/s/zihoc95639/images/bS0yODU2MjMtMzk5N2k4RTM3RTI3ODYzRDVENUE5?revision=3\"}":{"__typename":"AssociatedImage","url":"https://community.f5.com/t5/s/zihoc95639/images/bS0yODU2MjMtMzk5N2k4RTM3RTI3ODYzRDVENUE5?revision=3","title":"0151T000003pk0yQAA.png","associationType":"BODY","width":651,"height":422,"altText":null},"AssociatedImage:{\"url\":\"https://community.f5.com/t5/s/zihoc95639/images/bS0yODU2MjMtMTM0MjFpMEU4MDI1NkQ0QTg5RjNCNA?revision=3\"}":{"__typename":"AssociatedImage","url":"https://community.f5.com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Infrastructure Security - Protocol Inspection with AFM","conversation":{"__ref":"Conversation:conversation:285623"},"id":"message:285623","revisionNum":3,"uid":285623,"depth":0,"board":{"__ref":"Tkb:board:TechnicalArticles"},"author":{"__ref":"User:user:129415"},"teaser@stripHtml({\"removeProcessingText\":true,\"truncateLength\":-1})":"","introduction":"","metrics":{"__typename":"MessageMetrics","views":550},"postTime":"2020-10-08T12:54:24.000-07:00","lastPublishTime":"2022-08-11T10:31:46.742-07:00","body@stripHtml({\"removeProcessingText\":true,\"removeSpoilerMarkup\":true,\"removeTocMarkup\":true,\"truncateLength\":-1})":" The F5 Beacon capabilities referenced in this article hosted on F5 Cloud Services are planning a migration to a new SaaS Platform - Check out the latest here. \n \n Introduction \n This article is part of a series on implementing Orchestrated Infrastructure Security. It includes High Availability, Central Management with BIG-IQ, Application Visibility with Beacon and the protection of critical assets using F5 Advanced WAF and Protocol Inspection (IPS) with AFM. It is assumed that SSL Orchestrator is already deployed, and basic network connectivity is working. \n If you need help setting up SSL Orchestrator for the first time, refer to the Dev/Central article series Implementing SSL Orchestrator here. \n This article focuses on configuring Protocol Inspection (IPS) with AFM deployed as a Layer 2 solution. It covers the configuration of Protocol Inspection on an F5 BIG-IP running version 16.0.0. \n Configuration of BIG-IP deployed as AFM can be downloaded from here from GitLab. \n Please forgive me for using SSL and TLS interchangeably in this article. \n This article is divided into the following high level sections: \n \n Protocol Inspection (IPS) with AFM Network Configuration \n Create an AFM Protocol Inspection Policy \n Attach Virtual Servers to an AFM Protocol Inspection Policy \n \n Protocol Inspection (IPS) with AFM: Network Configuration \n The BIG-IP will be deployed with VLAN Groups. This combines 2 interfaces to act as an L2 bridge where data flows into one interface and is passed out the other interface. \n From the F5 Configuration Utility go to Network > VLANs. Click Create on the right. \n \n Give it a name, ingress1 in this example. Set the Interface to 5.0. Set Tagging to Untagged then click Add. Interface 5.0 (untagged) should be visible like in the image below. Click Repeat at the bottom to create another VLAN. \n Note: In this example interface 5.0 will receive decrypted traffic from sslo1. \n \n Give it a name, egress1 in this example. Set the Interface to 6.0. Set Tagging to Untagged then click Add. Interface 6.0 (untagged) should be visible like in the image below. Click Finished when done. \n Note: In this example interface 6.0 will receive decrypted traffic from sslo1. \n \n Note: This guide assumes you are setting up a redundant pair of SSL Orchestrators. Therefore, you should repeat these steps to configure VLANs for the two interfaces connected to sslo2. These VLANs should be named in a way that you can differentiate them from the others. Example: ingress2 and egress2 \n It should look something like this when done: \n \n Note: In this example Interface 3.0 and 4.0 are physically connected to sslo2. \n Click VLAN Groups then Create on the right. \n \n Give it a name, vlg1 in this example. Move ingress1 and egress1 from Available to Members. Set the Transparency Mode to Transparent. Check the box to Bridge All Traffic then click Finished. \n \n Note: This guide assumes you are setting up a redundant pair of SSL Orchestrators. Therefore, you should repeat these steps to configure a VLAN Group for the two interfaces connected to sslo2. This VLAN Group should be named in a way that you can differentiate it from the other, example: vlg1 and vlg2. It should look like the image below: \n \n For full Layer 2 transparency the following CLI option needs to be enabled: \n (tmos)# modify sys db connection.vgl2transparent value enable\n \n Create an AFM Protocol Inspection Policy \n You can skip this step if you already have an AFM Protocol Inspection policy created and attached to one or more virtual servers. If not, we’ll cover it briefly. In this example we configured Protocol Inspection with Signatures and Compliance enabled. \n From Security select Protocol Security > Inspection Profiles > Add > New. \n \n Give it a name, IPS in this example. For Services, select the Protocol(s) you want to inspect, HTTP in this example. \n \n Optionally check the box to enable automatic updates and click Commit Changes to System. \n \n Attach Virtual Servers to an AFM Protocol Inspection Policy \n Attach the Protocol Inspection Profile to the Virtual Server(s) you wish to protect. From Local Traffic select Virtual Servers. Click the name of the Virtual Server you want to apply the profile to, 10.4.11.52 in this example. \n \n Click Security > Policies. \n \n Set the Protocol Inspection Profile to Enabled, then select the Profile created previously, IPS in this example. Click Update when done. \n \n Repeat this process to attach the IPS Profile to the remaining Virtual Servers. \n Summary \n In this article you learned how to configure BIG-IP in layer 2 transparency mode using VLAN groups. We also covered how to create an AFM Protocol Inspection policy and attach it to your Virtual Servers. \n Next Steps \n Click Next to proceed to the next article in the series. 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