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A comment on IP traffic over ICMP tunneling. Parent comment

Re:IP traffic over ICMP tunneling by burkaman on Wednesday November 11, 2015 @02:34PM (#10548688)
They said they only allow echo and reply, not drop them.
[ Parent | on HN ]
Re:IP traffic over ICMP tunneling by scurvy on Thursday November 12, 2015 @11:52AM (#10554297)
That's even worse. PMTU detection is OK but not perfect. Fragmentation needed but DF bit set ICMP messages are important.
[ Parent | on HN ]