Generating 'Fragment Needed but DF was Set' ICMP & Dummynet
mav at alkar.net
Tue Feb 17 02:11:48 PST 2004
I observe a strange thing. When I create dummynet pipe on output router
interface with lower MTU system stops to generate 'Fragment Needed but
DF was Set' ICMP in cases when it must. If I create this pipe on
incoming interface there is no problem.
I check this on many routers under 4.8 and 5.2 FreeBSD.
Is this a bug or feature? :) How pipes can be created leaving ICMP
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