11-09-2007 04:52 AM - edited 03-03-2019 07:28 PM
Hi,
I have a small problem on an old 7200non-VXR:
I have two BGP sessions from R1 to R2 and R3. I advertise some networks but get no routes back (not enough RAM for a full table). So I have two default routes from R1 to R2 and to R3 (higher metric on the default route to R3). The problem is, if R2 dies, the default route still points to R2. I don't have access to R2 or R3 so getting a default route injected via BGP isn't possible. Route tracking is also not a possibility as route tracking isn't supported on 12.2 (which is the last release which runs on 7200nonVXR). So any other ideas?
Thank you,
Martin
11-09-2007 09:01 AM
I suggest trying this approach in a lab.
Create a route-map
route-map internet 10
set ip next-hop R2
set ip next-hop verify-availability
route-map internet 20
set ip next-hop R3
set ip next-hop verify-availability
at the ingress interface
interface f0/0
ip policy route-map internet
http://www.cisco.com/en/US/docs/ios/12_2/iproute/command/reference/1rfindp2.html#wpxref18681
_____________________
Let us know how it works out.
11-10-2007 10:26 AM
Hi,
thank you for your answer. But I still have a question. If I understand the "set ip next-hop verify-availability" command correctly, it requires that CDP is enabled on R1, R2 and R3. Is this correct? The problem is, that R2 and R3 are non-cisco routers and do not support CDP.
Thank you,
Martin
11-10-2007 01:18 PM
Hi,
are you able to get any prefix from the R2 and R3?
If yes, why not to try using ip default-network command?
see http://www.cisco.com/en/US/docs/ios/12_3/iproute/command/reference/ip2_i1g.html#wp1037313
BR,
Milan
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