BGP neighbor - default-originate - command

From: alsontra@hotmail.com
Date: Wed Jan 28 2004 - 17:04:13 GMT-3


Hi Group,
             I am trying to use the default originate neighbor ("neighbor
{ip-address | peer-group-name} default-originate [route-map map-name]")
command to send a default route into AS200. My configs are an follows:

topology

AS200
   R3
     |
____________________

R5(RR)

     AS500

R2(RRC)-------R6(RRC)

R3#
router bgp 200
 no synchronization
 bgp router-id 223.1.1.3
 neighbor 223.1.1.5 remote-as 500
 neighbor 223.1.1.5 ebgp-multihop 255
 neighbor 223.1.1.5 update-source Loopback0
 neighbor 223.1.1.8 remote-as 65011
 neighbor 223.1.1.8 ebgp-multihop 255
 neighbor 223.1.1.8 update-source Loopback0

R3#sh ip bgp
BGP table version is 13, local router ID is 223.1.1.3
Status codes: s suppressed, d damped, h history, * valid, > best, i -
internal
Origin codes: i - IGP, e - EGP, ? - incomplete

   Network Next Hop Metric LocPrf Weight Path
*> 10.1.1.0/24 223.1.1.5 0 500 300 ?
*> 30.1.1.0/24 223.1.1.5 0 500 300 300 300
i
*> 200.0.0.0/5 223.1.1.5 0 500 300 i
*> 223.1.1.4/32 223.1.1.5 0 500 300 ?

R5#
router bgp 500
 no synchronization
 bgp router-id 223.1.1.5
 neighbor 223.1.1.2 remote-as 500
 neighbor 223.1.1.2 route-reflector-client
 neighbor 223.1.1.3 remote-as 200
 neighbor 223.1.1.3 ebgp-multihop 255
 neighbor 223.1.1.3 default-originate
 neighbor 223.1.1.6 remote-as 500
 neighbor 223.1.1.6 route-reflector-client
!
ip classless
ip route 0.0.0.0 0.0.0.0 Null0

R5#sh ip bgp
BGP table version is 6, local router ID is 223.1.1.5
Status codes: s suppressed, d damped, h history, * valid, > best, i -
internal
Origin codes: i - IGP, e - EGP, ? - incomplete

   Network Next Hop Metric LocPrf Weight Path
* i10.1.1.0/24 223.1.1.47 100 0 300 ?
*>i 223.1.1.47 100 0 300 ?
*>i30.1.1.0/24 223.1.1.47 200 0 300 300 300 i
*>i200.0.0.0/5 223.1.1.47 100 0 300 i
* i 223.1.1.47 100 0 300 i
* i223.1.1.4/32 223.1.1.47 100 0 300 ?
*>i 223.1.1.47 100 0 300 ?
R5#

There are three peers in AS500 two route reflector clients and a single route
reflector. I've only posted R5 and R3's configs, because I think there the
only configs with any relevance. I've read that the host originating the
default route does not need a default to propagate one using the neighbor
default command. Not sure if that's true, so I created a default on R5 to see
if it might make the route propagate. Didn't work. I've tried sync and no
sync. I'm still working on the this one, any help would be appreciated. Also,
underlining connectivity is provided via IGPs, that is, connectivity is ok.

Thanks
Al



This archive was generated by hypermail 2.1.4 : Mon Feb 02 2004 - 09:07:51 GMT-3