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On router 2 do this:
router bgp 1
network 1.0.0.0 backdoor
where 1.0.0.0 is the major network you are
routing. This will cause the admin distance for that route to change to
200. It will not advertise the network. Check out Halabi pg 324 or
If you have the doc cd.
Kenny
----- Original Message -----
Sent: Wednesday, August 30, 2000 12:02
AM
Subject: BGP/OSPF issue
Hi folks,
we got a problem involving BGP and OSPF
here. Lets say we are an ISP (AS 1) with two routers (Router1, Router2)in
different cities. They are both running OSPF (and IBGP) to exchange intra-AS
routing information. Router2 is connected via BGP to an upstream provider (AS
2). Router1 has static entries for a large customer network (downstream). All
operations are running well but if we traceroute from our Router 2 to the
customer network the packets dont take the path via Router 1 but via our
upstream provider (AS 2) which is suboptimal and not desirable. From my
understanding the packets chose this path because of the eBGP administrative
distance (20). Do we have to decrease the OSPF distance to >20? In addition
static routing is not desirable (there would be too many networks to
announce).
Any input would be much
appreciated,
Gabriel
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