nanog mailing list archives

Re: Internet Edge Router replacement - IPv6 route tablesizeconsiderations


From: "Dobbins, Roland" <rdobbins () arbor net>
Date: Sat, 12 Mar 2011 04:33:00 +0000


On Mar 12, 2011, at 11:14 AM, Jeff Wheeler wrote:

Of course, I don't really mean to call Owen a liar, or foolish, or anything else.  

Please don't; even though I disagree with him and agree with you very strongly on this set of issues, Owen is a smart 
and straightforward guy, and is simply speaking from his (selective on this particular set of topics, IMHO) own 
individual viewpoint.

;>

and if the most popular fix becomes dependent on NDP inspection


If that comes to pass, then the fix will be useless, unfortunately, just as dynamic ARP inspection (DAI) is useless 
today; it self-DoSes the box.

Any form of 'inspection' will not scale for this problem, as it will be CPU-bound even on ASIC-based platforms.

All this ICMPv6 weirdness and outright brokenness is the Achilles' heel of IPv6, and I see no ready solution in sight 
for the set of problems it engenders.

-----------------------------------------------------------------------
Roland Dobbins <rdobbins () arbor net> // <http://www.arbornetworks.com>

                The basis of optimism is sheer terror.

                          -- Oscar Wilde



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