From: wie hua (huawei00012000@yahoo.com.cn)
Date: Thu Jan 29 2004 - 23:03:35 GMT-3
Hello
There is no need to add a static default route to Nullo .when you add neighbor x.x.x.x default-originate command under bgp process,you just need to clear ip bgp * soft ,so you can check the default route on the peer router .
best regards
xieji
Arvind Yadav <arvindyadav@comcast.net> wrote:
config looks fine, after applying the default-originate command just do
"clear ip bgp * " on R5 and then check.
----- Original Message -----
From:
To:
Sent: Wednesday, January 28, 2004 3:04 PM
Subject: BGP neighbor - default-originate - command
> 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
>
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