[GTER] RES: RES: PTT-SP - Participantes prendendo rotas recebidas no ATM?

Raul Olive raul at novonet.com.br
Thu Aug 30 16:10:27 -03 2012


Rinaldo, segue!

[xxxxxxxxx at Router Borda] > /ip route print detail where
dst-addres=177.46.1.0/24
Flags: X - disabled, A - active, D - dynamic, C - connect, S - static, r -
rip, b - bgp, o - ospf, m - mme, B - blackhole, U - unreachable, P -
prohibit 
[xxxxxxxxxxxx at Router Borda] >

--

Atenciosamente,
Raul Olive Eler
raul at novonet.com.br
Gerente de Tecnologia e Projetos



-----Mensagem original-----
De: gter [mailto:gter-bounces at eng.registro.br] Em nome de Rinaldo Vaz
Enviada em: quinta-feira, 30 de agosto de 2012 15:48
Para: Grupo de Trabalho de Engenharia e Operacao de Redes
Assunto: Re: [GTER] RES: PTT-SP - Participantes prendendo rotas recebidas no
ATM?

Boa tarde Raul,

Acredito que essa rota ainda esteja sendo considerada "acessível" para o seu
Mikrotik

Por favor, qual o resultado do comando:

/ip route print detail where dst-addres=177.46.1.0/24

?

Abs



Em 30 de agosto de 2012 15:38, Raul Olive <raul at novonet.com.br> escreveu:

> Rinaldo, boa tarde.
>
> AS262828 é nosso, usamos sim RB com mikrotik 5.19
>
> --
>
> Atenciosamente,
> Raul Olive Eler
> raul at novonet.com.br
> Gerente de Tecnologia e Projetos
>
>
>
> -----Mensagem original-----
> De: gter [mailto:gter-bounces at eng.registro.br] Em nome de Rinaldo Vaz 
> Enviada em: quinta-feira, 30 de agosto de 2012 15:11
> Para: Grupo de Trabalho de Engenharia e Operacao de Redes; Percival 
> ANID
> Assunto: [GTER] PTT-SP - Participantes prendendo rotas recebidas no ATM?
>
> Boa tarde à todos,
>
> Tenho percebido nos últimos meses comportamentos muito estranhos, onde 
> algumas redes simplesmente param de funcionar via PTT-SP, e tenho 
> motivos para acreditar que comportamentos anormais de alguns Mikrotiks 
> estão sendo a causa de alguns desses problemas onde redes param de 
> funcionar via ATM do PTT-SP
>
> Fiz hoje uma experiência anunciando para o ATM o prefixo 
> *177.46.1.0/24*
>
> Primeiro chequei no LOOKING GLASS do PTT-SP que o prefixo 
> 177.46.1.0/24não existia na FIB de nenhum participante:
>
> lg.sp.ptt.br$ sh ip bgp 177.46.1.0/24
> *% Network not in table*
> lg.sp.ptt.br$
>
> Após liberar o novo prefixo nos meus filtros passamos a anuncia-lo no ATM:
>
> BGP routing table entry for *177.46.1.0/24*
> Paths: (1 available, best #1, table Default-IP-Routing-Table)
>   Advertised to non peer-group peers:
> 187.16.216.252 *187.16.216.253 187.16.216.254*
>   Local
>     0.0.0.0 from 0.0.0.0 (201.20.36.146)
>       Origin IGP, metric 0, localpref 100, weight 32768, valid, 
> sourced, local, best
>       Last update: Thu Aug 30 14:10:19 2012
>
> Notem nos campos em negrito que estou anunciando 177.46.1.0/24 para LG 
> e os dois route-servers e consequentemente, todos os participantes que 
> estabelecem BGP com o LG passaram a informar conforme print abaixo:
>
> Consequentemente, esse é a visão do Looking Glass:
> *
> lg.sp.ptt.br$ sh ip bgp 177.46.1.0/24* BGP routing table entry for 
> 177.46.1.0/24
> Paths: (83 available, best #83, table Default-IP-Routing-Table)
>   Not advertised to any peer
>   10954 28135
>     187.16.216.108 from 187.16.216.28 (189.9.64.127)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:17:10 2012
>
>   53070 28135
>     187.16.216.108 from 187.16.216.102 (187.86.223.254)
>       Origin IGP, localpref 100, valid, external
>       Community: 53070:4000
>       Last update: Thu Aug 30 13:17:10 2012
>
>   28288 28135
>     187.16.216.108 from 187.16.216.124 (189.28.192.1)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:17:08 2012
>
>   10954 28135
>     187.16.216.108 from 187.16.216.33 (192.168.10.1)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:17:08 2012
>
>   28140 28135
>     187.16.216.108 from 187.16.216.193 (187.49.32.1)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:17:08 2012
>
>   262518 28135
>     187.16.216.108 from 187.16.217.65 (177.67.116.1)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:17:07 2012
>
>   7048 28135
>     187.16.216.108 from 187.16.217.37 (192.168.0.254)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:17:07 2012
>
>   28620 28135
>     187.16.216.108 from 187.16.217.175 (201.55.136.1)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:17:06 2012
>
>   28272 28135
>     187.16.216.108 from 187.16.217.58 (200.219.202.220)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:17:05 2012
>
>   10362 28135
>     187.16.216.108 from 187.16.216.84 (200.218.20.193)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:17:05 2012
>
>   28280 28135
>     187.16.216.108 from 187.16.216.148 (201.33.240.1)
>       Origin IGP, localpref 100, valid, external
>       Community: 28280:300
>       Last update: Thu Aug 30 13:17:02 2012
>
>   28262 28135
>     187.16.216.212 from 187.16.216.212 (187.17.32.1)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:17:02 2012
>
>   27693 28135
>     187.16.216.108 from 187.16.217.86 (189.127.15.254)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:17:00 2012
>
>   53069 28135
>     187.16.216.108 from 187.16.216.238 (187.86.192.5)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:59 2012
>
>   28208 28135
>     187.16.216.108 from 187.16.217.34 (186.226.45.1)
>       Origin IGP, localpref 100, valid, external
>       Community: 28208:101
>       Last update: Thu Aug 30 13:16:59 2012
>
>   53116 28135
>     187.16.216.108 from 187.16.217.128 (187.110.1.18)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:58 2012
>
>   53116 28135
>     187.16.216.108 from 187.16.217.127 (187.110.1.17)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:58 2012
>
>   27715 28135
>     187.16.216.108 from 187.16.217.164 (186.202.44.2)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:56 2012
>
>   28275 28135
>     187.16.216.108 from 187.16.216.27 (172.28.7.179)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:55 2012
>
>   262518 28135
>     187.16.216.108 from 187.16.217.66 (177.67.112.253)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:55 2012
>
>   28287 28135
>     187.16.216.108 from 187.16.216.169 (201.49.207.254)
>       Origin IGP, localpref 100, valid, external
>       Community: 28287:9055
>       Last update: Thu Aug 30 13:16:54 2012
>
>   16736 28135
>     187.16.216.108 from 187.16.216.130 (200.229.24.2)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:53 2012
>
>   28218 28135
>     187.16.216.108 from 187.16.216.172 (189.124.0.32)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:52 2012
>
>   28143 28135
>     187.16.217.19 from 187.16.217.19 (187.49.97.2)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:51 2012
>
>   28634 28135
>     187.16.216.108 from 187.16.216.209 (201.62.64.252)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:51 2012
>
>   28173 28135
>     187.16.216.108 from 187.16.217.4 (187.16.217.4)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:49 2012
>
>   28634 28135
>     187.16.216.108 from 187.16.216.131 (201.62.64.254)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:45 2012
>
>   53144 28135
>     187.16.216.133 from 187.16.216.133 (187.103.64.1)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:43 2012
>
>   53075 28135
>     187.16.216.108 from 187.16.216.188 (187.94.16.255)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:43 2012
>
>   14840 28135
>     187.16.216.108 from 187.16.216.219 (186.211.128.32)
>       Origin IGP, localpref 100, valid, external
>       Community: 14840:10 14840:40 14840:7110
>       Last update: Thu Aug 30 13:16:42 2012
>
>   53080 28135
>     187.16.216.108 from 187.16.216.215 (187.95.0.1)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:41 2012
>
>   262757 28135
>     187.16.216.108 from 187.16.217.104 (186.224.111.254)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:49 2012
>
>   28135
>     187.16.216.108 from 187.16.216.253 (187.16.216.253)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:41 2012
>
>   53242 28135
>     187.16.217.112 from 187.16.217.112 (177.21.0.1)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:57 2012
>
>   262828 28135
>     187.16.216.108 from 187.16.217.93 (192.168.60.129)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:53 2012
>
>   262476 28135
>     187.16.216.108 from 187.16.217.207 (187.16.217.207)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:58 2012
>
>   22548 28135
>     187.16.217.17 from 187.16.217.17 (200.160.0.133)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:40 2012
>
>   262855 28135
>     187.16.217.31 from 187.16.217.31 (177.12.192.1)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:49 2012
>
>   28598 28135
>     187.16.216.108 from 187.16.217.15 (176.52.253.50)
>       Origin IGP, localpref 100, valid, external
>       Community: 28598:100
>       Last update: Thu Aug 30 13:16:40 2012
>
>   53165 28135
>     187.16.216.108 from 187.16.217.173 (186.216.240.1)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:59 2012
>
>   14026 28135
>     187.16.216.108 from 187.16.217.166 (187.16.217.166)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:40 2012
>
>   262354 28135
>     187.16.216.108 from 187.16.217.129 (177.125.211.254)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:40 2012
>
>   28654 28135
>     187.16.217.116 from 187.16.217.116 (201.77.128.65)
>       Origin IGP, localpref 100, valid, external
>       Community: 28654:103
>       Last update: Thu Aug 30 13:16:46 2012
>
>   28169 28135
>     187.16.216.108 from 187.16.217.131 (187.63.160.1)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:41 2012
>
>   11835 28135
>     187.16.216.108 from 187.16.216.72 (200.192.248.2)
>       Origin IGP, localpref 100, valid, external
>       Community: 11835:1310
>       Last update: Thu Aug 30 13:16:40 2012
>
>   28343 28135
>     187.16.217.32 from 187.16.217.32 (189.45.192.65)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:40 2012
>
>   28126 28135
>     187.16.216.108 from 187.16.217.23 (187.19.145.1)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:40 2012
>
>   8055 28135
>     187.16.216.108 from 187.16.216.6 (200.160.48.10)
>       Origin IGP, localpref 100, valid, external
>       Community: 8055:64548 8055:65533
>       Last update: Thu Aug 30 13:16:40 2012
>
>   28143 28135
>     187.16.217.18 from 187.16.217.18 (187.49.97.1)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:40 2012
>
>   28168 28135
>     187.16.216.184 from 187.16.216.184 (187.63.239.1)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:41 2012
>
>   28580 28135
>     187.16.216.108 from 187.16.216.76 (200.187.80.244)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:40 2012
>
>   28647 28135
>     187.16.216.108 from 187.16.216.114 (201.76.224.1)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:40 2012
>
>   28272 28135
>     187.16.216.108 from 187.16.217.57 (200.219.202.219)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:40 2012
>
>   262561 28135
>     187.16.216.108 from 187.16.217.152 (177.71.64.1)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:57 2012
>
>   22431 28135
>     187.16.216.108 from 187.16.216.26 (201.71.59.1)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:49 2012
>
>   28135
>     187.16.216.108 from 187.16.216.254 (187.16.216.254)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:40 2012
>
>   262471 28135
>     187.16.216.108 from 187.16.216.53 (177.53.155.1)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:40 2012
>
>   262659 28135
>     187.16.216.108 from 187.16.216.183 (187.85.0.254)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:40 2012
>
>   28289 28135
>     187.16.216.108 from 187.16.216.104 (189.36.224.1)
>       Origin IGP, localpref 100, valid, external
>       Community: 28289:65506
>       Last update: Thu Aug 30 13:16:39 2012
>
>   28165 28135
>     187.16.216.108 from 187.16.217.75 (187.62.208.5)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:40 2012
>
>   53018 28135
>     187.16.216.108 from 187.16.216.200 (177.72.128.249)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:54 2012
>
>   262420 28135
>     187.16.216.108 from 187.16.217.11 (186.219.96.1)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:17:09 2012
>
>   28263 28135
>     187.16.216.108 from 187.16.217.156 (187.16.217.156)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:38 2012
>
>   28328 28135
>     187.16.216.108 from 187.16.217.141 (189.14.223.6)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:38 2012
>
>   14026 28135
>     187.16.216.108 from 187.16.216.56 (187.16.216.56)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:47 2012
>
>   262728 28135
>     187.16.216.108 from 187.16.217.92 (186.192.100.29)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:37 2012
>
>   53131 28135
>     187.16.217.158 from 187.16.217.158 (187.121.192.5)
>       Origin IGP, localpref 100, valid, external
>       Community: 53131:65502
>       Last update: Thu Aug 30 13:16:37 2012
>
>   53102 28135
>     187.16.216.108 from 187.16.216.113 (187.103.160.1)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:36 2012
>
>   28238 28347 28135
>     189.51.32.1 from 187.16.217.69 (186.216.224.1)
>       Origin IGP, localpref 100, valid, external
>       Community: 28347:1000
>       Last update: Thu Aug 30 13:16:36 2012
>
>   28186 28135
>     187.16.216.108 from 187.16.216.160 (189.89.130.255)
>       Origin IGP, localpref 100, valid, external
>       Community: 28186:20
>       Last update: Thu Aug 30 13:16:35 2012
>
>   1916 28135
>     187.16.216.108 from 187.16.216.4 (200.143.254.62)
>       Origin IGP, localpref 100, valid, external
>       Community: 1916:1250
>       Last update: Thu Aug 30 13:16:35 2012
>
>   52869 28135
>     187.16.217.46 from 187.16.217.46 (177.128.64.0)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:35 2012
>
>   1251 28135
>     187.16.216.189 from 187.16.216.189 (200.136.37.1)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:38 2012
>
>   53184 28135
>     187.16.216.108 from 187.16.217.162 (186.232.48.1)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:35 2012
>
>   53104 28135
>     187.16.216.108 from 187.16.217.192 (187.108.64.10)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:35 2012
>
>   262485 28135
>     187.16.216.108 from 187.16.217.174 (177.66.0.25)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:35 2012
>
>   28571 28135
>     187.16.216.108 from 187.16.216.20 (143.107.255.15)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:40 2012
>
>   53224 28135
>     187.16.217.91 from 187.16.217.91 (186.251.112.1)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:35 2012
>
>   22689 28135
>     187.16.216.108 from 187.16.216.118 (200.155.33.4)
>       Origin IGP, localpref 100, valid, external
>       Community: 22689:1111
>       Last update: Thu Aug 30 13:16:35 2012
>
>   28124 28135
>     187.16.216.108 from 187.16.217.72 (187.19.14.253)
>       Origin IGP, localpref 100, valid, external
>       Community: 28124:1001
>       Last update: Thu Aug 30 13:16:35 2012
>
>   53119 28135
>     187.16.216.108 from 187.16.216.10 (200.192.108.28)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:35 2012
>
>   262750 28135
>     187.16.216.108 from 187.16.217.14 (10.255.254.2)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:34 2012
>
>   28135
>     187.16.216.108 from 187.16.216.108 (201.20.36.146)
>       Origin IGP, metric 0, localpref 100, valid, external, best
>       Last update: Thu Aug 30 13:06:01 2012
>
>
> Até aí tudo praticamente normal, exceto por alguns "next-hops" que 
> estão diferentes do meu IP (.108), mas isso provavelmente se dá que 
> estão utilizando uma configuração equivalente ao "next-hop-self"
>
>
> Agora, removo esse anúncio do ATM:
> Percebam no meu debug que meu router "pediu educadamente" para os 
> route-servers removerem essa rede:
>
> *2012/08/30 14:33:39 BGP: 187.16.216.253 send UPDATE 177.46.1.0/24 --
> unreachable*
>
>
>
> Para reforçar, esse comando mostra que esse prefixo não se encontra 
> mais NEM MESMO NA MINHA FIB:
> *BGPD-ANID-ALOG-SP# sh ip bgp 177.46.1.0/24* % Network not in table 
> BGPD-ANID-ALOG-SP#
>
> 8 minutos após ter notificado aos route-servers que essa rede deveria 
> ter sido removida, eis o resultado da mesma consulta no Looking Glass:
>
> *lg.sp.ptt.br$ sh ip bgp 177.46.1.0/24* BGP routing table entry for 
> 177.46.1.0/24
> Paths: (14 available, best #14, table Default-IP-Routing-Table)
>   Not advertised to any peer
>   28263 28135
>     187.16.216.108 from 187.16.217.156 (187.16.217.156)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:34:40 2012
>
>   262757 28135
>     187.16.216.108 from 187.16.217.104 (186.224.111.254)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:49 2012
>
>   262828 28135
>     187.16.216.108 from 187.16.217.93 (192.168.60.129)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:53 2012
>
>   262855 28135
>     187.16.217.31 from 187.16.217.31 (177.12.192.1)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:49 2012
>
>   262471 28135
>     187.16.216.108 from 187.16.216.53 (177.53.155.1)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:40 2012
>
>   28289 28135
>     187.16.216.108 from 187.16.216.104 (189.36.224.1)
>       Origin IGP, localpref 100, valid, external
>       Community: 28289:65506
>       Last update: Thu Aug 30 13:16:39 2012
>
>   262728 28135
>     187.16.216.108 from 187.16.217.92 (186.192.100.29)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:37 2012
>
>   53131 28135
>     187.16.217.158 from 187.16.217.158 (187.121.192.5)
>       Origin IGP, localpref 100, valid, external
>       Community: 53131:65502
>       Last update: Thu Aug 30 13:16:37 2012
>
>   28186 28135
>     187.16.216.108 from 187.16.216.160 (189.89.130.255)
>       Origin IGP, localpref 100, valid, external
>       Community: 28186:20
>       Last update: Thu Aug 30 13:16:35 2012
>
>   52869 28135
>     187.16.217.46 from 187.16.217.46 (177.128.64.0)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:35 2012
>
>   53104 28135
>     187.16.216.108 from 187.16.217.192 (187.108.64.10)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:35 2012
>
>   262485 28135
>     187.16.216.108 from 187.16.217.174 (177.66.0.25)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:35 2012
>
>   53119 28135
>     187.16.216.108 from 187.16.216.10 (200.192.108.28)
>       Origin IGP, localpref 100, valid, external
>       Last update: Thu Aug 30 13:16:35 2012
>
>   262750 28135
>     187.16.216.108 from 187.16.217.14 (10.255.254.2)
>       Origin IGP, localpref 100, valid, external, best
>       Last update: Thu Aug 30 13:16:34 2012
>
> -Ainda existem 14 roteadores que "acreditam" que *177.46.1.0/24* 
> continua acessível via *187.16.216.108(ANID)* -Após 13 minutos os 
> mesmos 14 routers continuavam do mesmo jeito.
> -Após mais de meia hora esses routers continuam com a rota "presa"
>
> Analisando o MAC, posso afirmar com precisão que desses 14 
> routeadores, 4 são RouterBoards, embora os outros MAC's sejam 
> aparentemente de placas de Rede Intel, HP, e que outros eu não consegui
identificar o fabricante.
> Ou seja, tenho motivos para acreditar que todos esses 14 routers estão 
> rodando o RouterOS da Mikrotik devido ao comportamento típico de 
> "prender rotas"
>
> 187.16.216.10    *00:0C:42*:43:77:6F vlan10-pttsp
> 187.16.217.192  *00:0C:42*:40:95:8C vlan10-pttsp
> 187.16.216.104  *00:0C:42*:4A:72:7C vlan10-pttsp
> 187.16.217.93   *00:0C:42*:BC:5D:22 vlan10-pttsp
>
>
> E desses 4, o host 187.16.216.104 (AS262757) está até o dia de hoje 
> anunciando os BOGONS recebidos da ANID, que já foram corrigidos a 
> vários dias, e mesmo assim, o anúncio de BOGONS permanece.
> Felizmente, os BOGONS não vai deixar absolutamente nenhuma rede, ou 
> site indisponível. O que é realmente preocupante, é que esses 14 AS's 
> participantes estão aparentemente "prendendo rotas", e isso na 
> prática, significa que qualquer um que faça anúncios para o ATM, e 
> posteriormente decida deixar de anunciar, esses 14 AS's (e todos os 
> AS's e clientes atrás
> deles) deixarão de se comunicar com as redes que foram removidas.
>
> Peço ao responsável pelo *AS262757* que efetue um route-refresh, ou se 
> possível um reboot em sua RouterBorard
>
> Alguém aqui é responsável por um desses 14 AS's poderia confirmar se 
> está utilizando RouterOS Mikrotik e em qual versão?
>
> 28263
>
> ,262757,262828,262855,262471,28289,262728,53131,28186,52869,53104,2624
> 85,531
> 19,262750
>
>
>
> Abs
>
>
> --
>
>
> Rinaldo Vaz
> Chefe de operações do NOC
> Associação Nacional para Inclusão Digital Tim - 083 99975736 INOC - 
> 28135*100
> --
> gter list    https://eng.registro.br/mailman/listinfo/gter
>
> --
> gter list    https://eng.registro.br/mailman/listinfo/gter
>



-- 


Rinaldo Vaz
Chefe de operações do NOC
Associação Nacional para Inclusão Digital Tim - 083 99975736 INOC -
28135*100
--
gter list    https://eng.registro.br/mailman/listinfo/gter




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