In a message written on Mon, May 04, 2009 at 06:38:13PM -0400, Ricky Beam wrote: > So far, Cisco's gear is the only IPv6 routers I've messed with. And they > will not let you set an interface to anything smaller than a /64. > Loopbacks have slightly different rules, but in my case (IPv6 tunnels) > that fact hasn't proven very useful.
My 12.0(S), 12.4, and IOS-XR boxes are operating quite well with
/112's and /127's on GigE interfaces to each other, on GSR's, 7300's,
and 7200's. We also use /128's on loopbacks.
--
Leo Bicknell - bickn...@ufp.org - CCIE 3440
PGP keys at http://www.ufp.org/~bicknell/
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