On Mon, Jun 13, 2011 at 1:25 PM, Richard Zheng <rzh...@gmail.com> wrote: > This is probably a typical setup for border router not speaking BGP, wonder > how to handle it properly. Border router B is connected with customer router > C. Router C wants default-only/partial/full routes. Router B can't or is not > willing to handle it. Router C has a multihop EBGP session with a backbone > router A. To get router B know the customer routes, router A redistributes > them from EBGP to OSPF. > > The issue is redistribution from EBGP to OSPF works half way. OSPF database > has the external routes, but forwarding address is set to Router A. So the > routing loop occurs between A and B. > > I wonder if it is a design issue or configuration issue? > > ---------- -------------- ------------ > | BGP rtr A | ============ | no-BGP rtr B | ============ | Customer C | > ---------- -------------- ------------
Hi Richard, Just a SWAG, but run IBGP on router B with just your internal routes (including the customer route) instead of exporting into OSPF? Regards, Bill Herrin -- William D. Herrin ................ her...@dirtside.com b...@herrin.us 3005 Crane Dr. ...................... Web: <http://bill.herrin.us/> Falls Church, VA 22042-3004
