From: femi ogunlana (femmie@hotmail.co.uk)
Date: Thu Dec 13 2007 - 05:33:44 ART
Huug,
Your error message below tells you what the problem is here.
If you convert the AAF17FE4 from hex to decimal it would give you what number
you should be configuring as your as number.
r4#8w2d: %BGP-3-NOTIFICATION: received from neighbor 144.5.5.5 2/3
(BGPidentifier wrong) 4 bytes AAF17FE4 r5#*Dec 13 04:12:15.599:
%BGP-3-NOTIFICATION: sent to neighbor 144.4.4.4 2/3(BGP identifier wrong) 4
bytes AAF17FE4r5# FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF 0035 0104 0064 00B4
AAF1 7FE41802 0601 0400 0100 0102 0601 0400 0100 8002 0280 0002 0202 00
> Date: Thu, 13 Dec 2007 11:49:02 +0800> From: bradford.hung@gmail.com> To:
ccielab@groupstudy.com> Subject: BGP identifier wrong> > Hi All,> > R4 and R5
are directly connecting and running OSPF and BGP, but BGP is not> working as
follow:> > r5#sho ip bgp sum> BGP router identifier 170.241.127.228, local AS
number 100> BGP table version is 1, main routing table version 1> > Neighbor V
AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down> State/PfxRcd> 144.1.1.1 4 100 12
12 1 0 0 00:04:24 0> 144.2.2.2 4 100 11 12 1 0 0 00:04:15 0> 144.4.4.4 4 100
10 10 0 0 0 never Active> > r4#sho ip bgp sum> BGP router identifier
170.241.127.228, local AS number 100> BGP table version is 1, main routing
table version 1> > Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down>
State/PfxRcd> 144.1.1.1 4 100 13 13 1 0 0 00:05:08 0> 144.2.2.2 4 100 12 13 1
0 0 00:05:04 0> 144.5.5.5 4 100 10 10 0 0 0 never Idle> > > And following is
the error message:> > r4#> 8w2d: %BGP-3-NOTIFICATION: received from neighbor
144.5.5.5 2/3 (BGP> identifier wrong) 4 bytes AAF17FE4> > r5#> *Dec 13
04:12:15.599: %BGP-3-NOTIFICATION: sent to neighbor 144.4.4.4 2/3> (BGP
identifier wrong) 4 bytes AAF17FE4> r5# FFFF FFFF FFFF FFFF FFFF FFFF FFFF
FFFF 0035 0104 0064 00B4 AAF1 7FE4> 1802 0601 0400 0100 0102 0601 0400 0100
8002 0280 0002 0202 00> > Config:> R5:> router ospf 100> router-id 144.5.5.5>
log-adjacency-changes> network 133.1.1.0 0.0.0.255 area 0> network 144.5.5.5
0.0.0.0 area 0> network 170.241.127.228 0.0.0.0 area 0> !> router bgp 100> no
synchronization> bgp log-neighbor-changes> neighbor 144.1.1.1 remote-as 100>
neighbor 144.1.1.1 update-source Loopback0> neighbor 144.2.2.2 remote-as 100>
neighbor 144.2.2.2 update-source Loopback0> neighbor 144.4.4.4 remote-as 100>
neighbor 144.4.4.4 update-source Loopback0> no auto-summary> !> address-family
vpnv4> neighbor 144.1.1.1 activate> neighbor 144.1.1.1 send-community both>
neighbor 144.1.1.1 next-hop-self> neighbor 144.2.2.2 activate> neighbor
144.2.2.2 send-community both> neighbor 144.2.2.2 next-hop-self> neighbor
144.4.4.4 activate> neighbor 144.4.4.4 send-community both> neighbor 144.4.4.4
next-hop-self> exit-address-family> !> address-family ipv4 vrf client01>
redistribute connected metric 200> neighbor 133.1.59.9 remote-as 65005>
neighbor 133.1.59.9 activate> no synchronization> exit-address-family> !> >
R4:> r4#sb ospf 100> router ospf 100> router-id 144.4.4.4>
log-adjacency-changes> network 133.1.1.0 0.0.0.255 area 0> network 144.4.4.4
0.0.0.0 area 0> network 170.241.127.228 0.0.0.0 area 0> !> router bgp 100> no
synchronization> bgp log-neighbor-changes> neighbor 144.1.1.1 remote-as 100>
neighbor 144.1.1.1 update-source Loopback0> neighbor 144.2.2.2 remote-as 100>
neighbor 144.2.2.2 update-source Loopback0> neighbor 144.5.5.5 remote-as 100>
neighbor 144.5.5.5 update-source Loopback0> !> address-family ipv4 vrf
client01> redistribute connected metric 200> neighbor 133.1.48.8 remote-as
65004> neighbor 133.1.48.8 activate> no auto-summary> no synchronization>
exit-address-family> !> address-family vpnv4> neighbor 144.1.1.1 activate>
neighbor 144.1.1.1 next-hop-self> neighbor 144.1.1.1 send-community both>
neighbor 144.2.2.2 activate> neighbor 144.2.2.2 next-hop-self> neighbor
144.2.2.2 send-community both> neighbor 144.5.5.5 activate> neighbor 144.5.5.5
next-hop-self> neighbor 144.5.5.5 send-community both> exit-address-family> !>
> Please advise.> > Thanks,> >
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