Subject: Re: [pmtud] the DF-bit honouring problem

From: Michael Welzl <[email-masked]>
Date: 29 Aug 2003 08:29:36 +0200

> >>The risk to pmtumtud of DF-ignoring systems is that they cause the 
> >>algorithm to fail, since all probes would get through. The result is more
> >>fragments, and possible much higher changes of failure to communicate.
> 
> Why not have the frag-reassembling IP fire back an icmp saying "needed reassembly"?

Right, why not? Sounds like a very good idea to me.
It could be a recommendation (upon reassembling, routers SHOULD ...)

Cheers,
Michael

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