From: Pascal Buyl (Pascal.Buyl@xxxxxxxxxxxxxxxxx)
Date: Sat Apr 06 2002 - 14:18:40 GMT-3
Hey,
There is an exception for OSPF&BGP: the bgp router ID of the next hop in bgp
must match the OSPF router ID of the next hop in OSPF (cfr. CCO).
Cheers,
Pascal
"Krucker, Louis" wrote:
> Hello Peter,
>
> No, not with ospf. Other Protocols like eigrp working fine.
>
> Did you have any idea?
>
> regards
> Louis
>
> -----Original Message-----
> From: Peter van Oene
> To: Krucker, Louis
> Sent: 06.04.2002 16:27
> Subject: RE: BGP synch (sorry)
>
> Hi Louis,
>
> Did you get this working?
>
> At 10:48 PM 4/5/2002 +0200, you wrote:
> >Yes all routers in Area 0. I dont understand what you mean(
> >with It should only include r3 and R2.
> >
> >Can you please explain it?
> >
> >Thanks
> >Louis
> >
> >-----Original Message-----
> >From: Peter van Oene
> >To: Krucker, Louis
> >Sent: 05.04.2002 22:43
> >Subject: RE: BGP synch (sorry)
> >
> >Does your ospf topology include all routers? It should only include r3
> >and
> >r2.
> >
> >At 10:39 PM 4/5/2002 +0200, you wrote:
> > >Please have a look at my topology, all routers running
> > >bgp synch mode.
> > >
> > > AS5 AS3 AS3 AS1
> > >
> > > R5----R3------R2-----R1
> > >
> > >
> > >All routers running OSPF Area0 but the domain is divided
> > >in several AS.
> > >
> > >R5 Redistribute all ospf routes in bgp. R2 dont install all routes
> > >as *>, only those are directly connected.
> > >The remaining bgp routes are shown up with * only.
> > >
> > >The big problem here is that R1 receives not all routes due synch
> > >on R2.
> > >
> > >If i enter a static route, the network will synch.
> > >
> > >
> > >Heres my rouing table.
> > >
> > >wg1r2#
> > >wg1r2#sh ip rou
> > >Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B -
> >BGP
> > > D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter
> area
> > > N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type
> 2
> > > E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
> > > i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS
> >inter
> > >area
> > > * - candidate default, U - per-user static route, o - ODR
> > > P - periodic downloaded static route
> > >
> > >Gateway of last resort is not set
> > >
> > > 129.45.0.0/16 is variably subnetted, 12 subnets, 3 masks
> > >O E2 129.45.80.252/30 [110/3000] via 129.45.80.1, 00:06:36,
> >Serial0/0.100
> > >O E2 129.45.80.199/32 [110/5000] via 129.45.80.1, 00:06:36,
> >Serial0/0.100
> > >C 129.45.80.160/30 is directly connected, Serial0/1
> > >D 129.45.80.104/29 [1/2195456] via 129.45.80.162, 01:16:15,
> >Serial0/1
> > >O IA 129.45.80.96/29 [110/84] via 129.45.80.1, 00:06:36,
> >Serial0/0.100
> > >O E2 129.45.80.88/29 [110/2000] via 129.45.80.1, 00:06:36,
> >Serial0/0.100
> > >C 129.45.80.80/29 is directly connected, TokenRing0/0
> > >C 129.45.80.24/29 is directly connected, Ethernet0/0
> > >O E2 129.45.80.16/30 [110/5000] via 129.45.80.1, 00:06:37,
> >Serial0/0.100
> > >O E2 129.45.80.12/30 [110/5000] via 129.45.80.1, 00:06:37,
> >Serial0/0.100
> > >O IA 129.45.80.8/30 [110/74] via 129.45.80.1, 00:06:37,
> >Serial0/0.100
> > >C 129.45.80.0/29 is directly connected, Serial0/0.100
> > >wg1r2#
> > >wg1r2#
> > >wg1r2#
> > >wg1r2#sh ip bgp
> > >BGP table version is 20, local router ID is 129.45.80.3
> > >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
> > >*>i129.45.80.0/29 129.45.80.2 0 100 0 5 ?
> > >* i129.45.80.8/30 129.45.80.2 0 100 0 5 ?
> > >* i129.45.80.12/30 129.45.80.2 0 100 0 5 ?
> > >* i129.45.80.16/30 129.45.80.2 0 100 0 5 ?
> > >*>i129.45.80.24/29 129.45.80.2 791 100 0 5 ?
> > >*>i129.45.80.80/29 129.45.80.2 787 100 0 5 ?
> > >* i129.45.80.88/29 129.45.80.2 0 100 0 5 ?
> > >* i129.45.80.96/29 129.45.80.2 20 100 0 5 ?
> > >*>i129.45.80.104/29 129.45.80.2 6000 100 0 5 ?
> > >*>i129.45.80.160/30 129.45.80.2 6000 100 0 5 ?
> > >* i129.45.80.199/32 129.45.80.2 0 100 0 5 ?
> > >* i129.45.80.252/30 129.45.80.2 3000 100 0 5 ?
> > >wg1r2#
> > >
> > >regards
> > >Louis
> > >
> > >
> > >
> > >-----Original Message-----
> > >From: Peter van Oene
> > >To: Krucker, Louis; 'ccielab@groupstudy.com'
> > >Sent: 05.04.2002 22:25
> > >Subject: Re: BGP synch (sorry)
> > >
> > >I believe that you need to match Peer ID's with OSPF advertising
> > >routers. Is this the case in your topology? Are you reflecting
> >routes?
> > >
> > >At 09:47 PM 4/5/2002 +0200, Krucker, Louis wrote:
> > > >Hi all,
> > > >
> > > >I read the ospf/bgp topics this afternoon and set up a small
> > > >bgp lab with 4 routers.
> > > >
> > > >The hole network running ospf, but i conf several AS.
> > > >I have the same problem my bgp routes dont synch with ospf.
> > > >
> > > >The Networks are installed in the roupting table by ospf but
> > > >bgp dont synch. If i enter a static route with the same Network
> > > >and nexthop it will work. Router IDs are same on all boxes.
> > > >Next hop self is configured correct.
> > > >
> > > >I try it out with eigrp....no problem everithing works fine.
> > > >
> > > >Does somebody have an idea?
> > > >
> > > >regards
> > > >Louis
This archive was generated by hypermail 2.1.4 : Thu Jun 13 2002 - 10:57:57 GMT-3