nanog mailing list archives

Re: IPv6 addressing for core network


From: Owen DeLong <owen () delong com>
Date: Wed, 9 Feb 2011 14:06:40 -0800


On Feb 9, 2011, at 9:30 AM, David Freedman wrote:

I think the solution to all of these problems is really to use public
addressing but filter access to it at your edge (yes, even ICMP TOOBIG
can be filtered safely if you have designed things in a sane way)

Filtering ICMP TOOBIG is actually bad. No matter how sane your
design is, you can't count on someone further down the road not
having a smaller MTU (unless you're running a 1280 MTU).

Owen



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