IPv6 NAT-PT issue

From: Nick Matthews (matthn@gmail.com)
Date: Sun Jul 20 2008 - 00:04:58 ART


Hi All,

I found this issue trying to do some NAT PT labs:

R2--R6--R1

The NAT-PT was set up on R6, and I was getting these results:
Pinging from R2 to R1:
!.!.!

This turned out to be an IOS bug: CSCsh63881

Workaround: disable CEF on the interface.

Now with 'no ip cef' on R6's interface towards R1:
!!!!!

Something to keep an eye out for, it looks like it's in all of 12.4 and
12.4T

Nick



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