IBGP, EBGP, AND ROUTE REFLECTORS

From: Ola Aiyegbusi (ola@xxxxxxxxxxx)
Date: Tue Sep 05 2000 - 21:06:28 GMT-3


   
   I have a problem.
   
   I can't ping an external bgp router (AS100) from another AS (AS200)
   that has a route reflector configured with no sync configured on all
   ibgp speakers in the AS (AS200)
   
   a) rtr A (AS100) and rtr B (AS200) are external neighbors connected
   via serial. They can ping each other.
   b) rtr A is advertising it's loopback address via BGP (1.1.1.1/24)
   c) rtr B can ping rtr A's loopback address
   d) In AS200, rtr B is connected to rtr C. rtr C is connected to rtr D
   e.g. (rtrB)--------(rtrC)--------(rtrD)
   e) All 3 routers above are in AS 200. rtr B is neighbored with rtrA
   (external) and rtrC (internal). rtrC is neighbored with B and D (both
   internal. rtr D is neighbored with C (internal)
   f) In AS200, rtr C is configured as the route reflector with B and D
   as clients
   g) The IGP running in AS 200 is OSPF
   h) Synchronization has been disabled in all AS 200 IBGP speakers
   g) Network 1.0.0.0 (see bullet b above) shows up in the bgp table and
   routing table of all IBGP speakers in AS 200
   
   Problem is: I can't ping 1.1.1.1 from rtr C or D, but I can ping it
   from rtr B. HELP!!!!!!!
   
   Ola Aiyegbusi
   ComPath Inc.
   10201 Lee Hwy Suite 140 Fairfax VA 22030
   Phone: 703-383-9550 Ext. 122
   Pager: 1-888-857-5620
   Cell: 703-395-8808
   Fax: 703-383-1369
   Email: ola@compath.com
   Web: http://www.compath.com



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