Hi, I was wondering about the question in the subject.
One gets a packet, the TTL/Hopcount is one, as I am the router, I subtract 1, then realize it is 0 and have to send out an ICMP unreachable as I want to actually forward it on to the next router/host. Now, the question is, do I need to send back the _original_ header containing TTL=1 in the payload of the ICMP or the new header with a TTL of 0? The question becomes more interesting when one receives a packet with TTL=0 from some malicious sender, what to do with that one? Greets, Jeroen -------------------------------------------------------------------- IETF IPv6 working group mailing list [email protected] Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6 --------------------------------------------------------------------
