nanog mailing list archives

Re: IPv6 network boundaries vs. IPv4


From: Valdis.Kletnieks () vt edu
Date: Mon, 27 Aug 2007 13:25:07 -0400

On Sat, 25 Aug 2007 23:56:29 MDT, John Osmon said:

Is anyone out there setting up routing boundaries differently for
IPv4 and IPv6?  I'm setting up a network where it seems to make
sense to route IPv4, while bridging IPv6 -- but I can be talked
out of it rather easily.

We decided to map our IPv6 subnets one-to-one to our IPv4, so each of our
routed /22 to /27 subnets gets a /64 IPv6 prefix.  This however was just
due to the fact that our topology permitted that - your mileage may vary.

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