Iljitsch van Beijnum wrote: > I was wondering what kind of unique perspective you would > have here, and I wasn't disappointed: You always outperform me with your imagination. >> It means that rational operators MUST filter some ICMP >> and, not surprisingly, some operators will block all >> ICMP or all packet too big ICMPs > > That is more or less ok as long as they don't send any packets > larger than 1280 bytes. That's not an assumption on end users' behavior rational operators can rely on. > If you want to send 1281-byte packets you MUST use PMTUD and > thus you MUST accept incoming packet too big messages. End users might think they can, but operators won't, accept them. Note that it's operators who filter. Masataka Ohta _______________________________________________ Ietf mailing list Ietf@xxxxxxxx https://www.ietf.org/mailman/listinfo/ietf