Help in understanding working of IP forwarding virtual server

VLAN 2602 is the VLAN that the virtual server listens on, so will only process traffic that ingresses on this VLAN.

The wildcard destination address (0.0.0.0/0) means all IP addresses will be processed, it is the same as having '*' as your IP. So IP address 10.1.1.1 will match, as will 200.200.200.200. The IP address will be forwarded with its destination address unchanged.

Source address Translation does exactly that.. translates the source IP address. Auto-map will NAT your source address to that of the self IP of the egress interface

You cannot have more than one wildcard IP forwarding VS (0.0.0.0) on all VLANS, but you can have more than one if the VLAN assignment is unique.

Hope this helps