[c-nsp] BGP with yourself...

[Jérôme Fleury]

Yes, but you probably can't do it between global and VRF since the
peering works because peer addresses are exchanged with route-target.
This cannot be accomplished with global routing table I guess
(actually I didn't manage to do it).

On Fri, Apr 25, 2008 at 3:01 AM, Wink <dwinkworth at wi.rr.com> wrote:
> Er..
>
>  There is a feature in IOS to accomplish inter-VRF routing on the same
>  router.  It is accomplished by spoofing the router-id within a VRF.
>
>  http://www.cisco.com/en/US/docs/ios/12_2sr/12_2sra/feature/guide/srbgprid.html
>
>
>
>  Luan Nguyen wrote:
>  > Very interesting.  I have a problem with having an ethernet in global doing
>  > NAT over a VRF, and the vrf doesn't know how to get to the ethernet LAN
>  > segment in the global.
>  > I was thinking of just doing:" ip route vrf whatever 1.1.1.0 255.255.255.0
>  > 3.3.3.3 global, where 3.3.3.3 is just some bogus nonexistence address (just
>  > to dump the packets destined for 1.1.1.0 out into the global since you can't
>  > put ethernet0 global because you can't do VPN route to a  non-point-to-point
>  > interface)
>  > I can imagine us using this "dynamic route exchanger" way when needing to
>  > move lots of routes.
>  >
>  > -lmn
>  >
>  > On Thu, Apr 24, 2008 at 5:19 PM, Asbjorn Hojmark - Lists <lists at hojmark.org>
>  > wrote:
>  >
>  >
>  >>> Now it trying to have an iBGP-session with itself,
>  >>>
>  >> How strange. Normally it'll complain that it can't peer with
>  >> itself.
>  >>
>  >>
>  >>> a thing I normally can't configure. :-)
>  >>>
>  >> That actually is possible: Set up two loopbacks, create a tunnel
>  >> between the loopbacks, and peer over that tunnel with one end of
>  >> the BGP session in a VRF (vpnv4).
>  >>
>  >> (I did that recently to get routes from the global table into a
>  >> VRF. It's annoying there's no good way to do that on a single
>  >> router).
>  >>
>  >> -A
>  >>
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