Ghost route 2001:650::/32

Thomas Schmid schmid at
Fri Feb 24 10:56:01 CET 2006

Hi all,

Am Mittwoch, 14. Dezember 2005 21:20 schrieb Daniel Roesen:
> On Wed, Dec 14, 2005 at 11:52:49AM -0800, David Kessens wrote:
> > We had:
> > 
> > 2001:650::/32  3FFE:80A::1275:4 4725 2497 1273 i
> > 
> > I did a reset and the route is gone.
> Thanks. Can you tell us the IOS version and platform (ideally: image
> file name) involved?
> As far as our info goes, this is a very wide-spread bug in many trains,
> still unfixed (for how many years now?).

seems we were also hit by this bug. With 12.3(11)T7 we had the effect
that our peering partner saw prefixes that we didn't announce them.
After the session was cleared, the prefixes were gone. I'm not aware
that there was any routing leak occurring before these ghost routes
became visible.

Digging with Cisco now ...



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