On Wed, 20 Aug 2008 21:43:44 +0530, Glen Kent said: > Do transit routers in the wild actually get to do IP fragmentation > these days? I was wondering if routers actually do it or not, because > the source usually discovers the path MTU and sends its data with the > least supported MTU. Is this true?
Hypothetically true. Unfortunately, enough places do bozo firewalling and drop the ICMP Frag Needed packets to severely limit the utility of PMTU Discovery.
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