[GTER] Quagga IPv6 ebgp-multihop

[Rodrigo Regis dos Santos]

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Douglas,


Já vi um problema parecido fechando a sessão usando loopback. O Quagga
se perde e tenta enviar os pacotes para o endereço link-local em vez
de usar o endereço global da interface.

A solução é você forçar o uso do next-hop correto e não o link-local:

bgpd-RX2(config)# route-map BUG-QUAGGA permit 10
bgpd-RX2(config-route-map)#set ipv6 next-hop local 2804:15c:ca5a::2021

bgpd-RX2(config)# router bgp 53062
bgpd-RX2(config-router)# address-family ipv6 unicast
bgpd-RX2(config-router-af)#neighbor 2804:15c:ca5a::2021 route-map
BUG-QUAGGA in

bgpd-RX2# clear bgp ipv6 2804:15c:ca5a::2021 soft in


[]s
Rodrigo Regis



Em 14/08/14 21:17, Douglas Fischer escreveu:
> E a rota de retorno, como está?
> 
> 
> 2014-08-14 10:30 GMT-03:00 Marcelo Balbinot
> <marcelo at gegnet.com.br>:
> 
>> Olá, estou com dificuldade em uma sessão ebgp ipv6 multihop
>> utilizando Linux/Quagga.
>> 
>> Na verdade o problema é na recursividade das rotas, a sessão bgp
>> subiu, recebi as rotas, mas elas ficam inacessíveis via um
>> link-local.
>> 
>> Vejam a configuração e o resultado abaixo...
>> 
>> 
>> eth2: 2804:15c:ca50:c::b/64 ipv6 route 2804:15c:ca5a::2021/128
>> 2804:15c:ca50:c::a neighbor: 2804:15c:ca5a::2021
>> 
>> 
>> router# show  ipv6  bgp BGP table version is 0, local router ID
>> is 187.85.150.81 Status codes: s suppressed, d damped, h history,
>> * valid, > best, i - internal, r RIB-failure, S Stale, R Removed 
>> Origin codes: i - IGP, e - EGP, ? - incomplete
>> 
>> Network          Next Hop            Metric LocPrf Weight Path *>
>> 2001:200::/32    2804:15c:ca5a::2021                    0
>> 
>> 
>> router# show  ipv6  route  2001:200::1 Routing entry for
>> 2001:200::/32 Known via "bgp", distance 20, metric 0, best Last
>> update 09:24:09 ago * fe80::56e0:32ff:fecf:66c5, via eth2
>> 
>> 
>> ping6 -I eth2 fe80::56e0:32ff:fecf:66c5 PING
>> fe80::56e0:32ff:fecf:66c5(fe80::56e0:32ff:fecf:66c5) from 
>> fe80::210:18ff:fed2:4cd2 eth2: 56 data bytes From
>> fe80::210:18ff:fed2:4cd2 icmp_seq=1 Destination unreachable:
>> Address unreachable From fe80::210:18ff:fed2:4cd2 icmp_seq=2
>> Destination unreachable: Address unreachable From
>> fe80::210:18ff:fed2:4cd2 icmp_seq=3 Destination unreachable:
>> Address unreachable --- fe80::56e0:32ff:fecf:66c5 ping statistics
>> --- 5 packets transmitted, 0 received, +3 errors, 100% packet
>> loss, time 4022ms
>> 
>> 
>> Alguma sugestão?
>> 
>> -- Marcelo Balbinot GegNET Telecomunicações Operação de Redes e
>> Serviços IP AS 53062 INOC-DBA 53062*200 -- gter list
>> https://eng.registro.br/mailman/listinfo/gter
> 
> 
> 
> 

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