IPV6 BGP next-hop

From: DaveW (kapsi1911@hotmail.com)
Date: Fri Feb 25 2005 - 23:00:30 GMT-3


I'm having a problem with my BGP route advertised from R5 to R6. R5 (AS5) and
R6 (AS6) are peering using their link-local addresses:

R5(vlan567)-------------------------------(e0/0)R6

R5(L0) - 2001::5:0/112

R5 has a route-map advertising it's global address (2001::5) as the next-hop
for network 2001::5:0/112. R6 has the correct next hop in it's bgp table, but
has a link-local address of FE80:: in it's routing table as the next hop. The
result is:

r6#ping 2001::5:1
3d04h: IPv6: SAS picked source 2001::6 for 2001::5:1 (Ethernet0/0)
3d04h: IPv6: nexthop FE80::,
3d04h: IPV6: source 2001::6 (local)
3d04h: dest 2001::5:1 (Ethernet0/0)
3d04h: traffic class 0, flow 0x0, len 100+0, prot 58, hops 64,
originating

3d04h: IPV6: source 2001::6 (local)
3d04h: dest FF02::1:FF00:0 (Ethernet0/0)
3d04h: traffic class 224, flow 0x0, len 72+8, prot 58, hops 255,
originati
ng
3d04h: IPv6: Sending on Ethernet0/0
3d04h: IPv6: Encapsulation failed
3d04h: IPv6: Resolving next hop FE80:: on interface Ethernet0/0.
3d04h: IPV6: source 2001::6 (local)

Can someone point out what I'm doing wrong.

Config:

R5:

interface Loopback0
 ip address 200.0.0.5 255.255.255.255
 ipv6 address 2001::5:1/112
 ipv6 mtu 1480

interface Vlan567
 ip address 150.50.7.5 255.255.255.128
 ipv6 address 2001::5/125
 ipv6 address FE80::5 link-local

router bgp 5
 bgp router-id 5.5.5.5
 no bgp default ipv4-unicast
 bgp cluster-id 3355443205
 bgp log-neighbor-changes
 neighbor FE80::6 remote-as 6
 neighbor FE80::6 update-source Vlan567
 !
 address-family ipv6
 neighbor FE80::6 activate
 neighbor FE80::6 route-map nexthop out
 network 2001::5:0/112
 exit-address-family

R6:

interface Ethernet0/0
 ip address 150.50.7.6 255.255.255.128
 full-duplex
 ipv6 address 2001::6/125
 ipv6 address FE80::6 link-local

router bgp 6
 no synchronization
 bgp router-id 6.6.6.6
 no bgp default ipv4-unicast
 bgp log-neighbor-changes
 neighbor FE80::5 remote-as 5
 neighbor FE80::5 update-source Ethernet0/0
 no auto-summary
 !
 address-family ipv6
 neighbor FE80::5 activate
 exit-address-family

r6#show bgp
*> 2001::5:0/112 2001::5 0 5 i

r6#show ipv6 route
C 2001::/125 [0/0]
     via ::, Ethernet0/0
L 2001::6/128 [0/0]
     via ::, Ethernet0/0
B 2001::5:0/112 [20/0]
     via FE80::, Ethernet0/0
L FE80::/10 [0/0]
     via ::, Null0
L FF00::/8 [0/0]
     via ::, Null0

Thanks,
DAve



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