Forum Discussion
Jerry_Lees_4280
Jun 26, 2018Historic F5 Account
Try searching through tcpdumps for ICMP packets with a TTL of zero. Per RFC 792 page 6 and 7 this is against RFC, and the BIG-IP logs this state with this error message.
Searching through the dumps will likely reveal the offending device. The following command may help: tcpdump -nnvi 0.0:nnn -s0 -w /var/tmp/icmp_testing.pcap -C 100