[caiu] Vivo Fibra (São Paulo/SP) sem rota para 8.8.8.8
César de Tassis Filho
ctassisf em gmail.com
Sáb Jul 25 12:31:45 -03 2020
Um adendo:
O problema parece não estar afetando só o DNS do Google, mas sim diversos
destinos que passam pelo roteador 187.100.179.44 (
187-100-179-44.dsl.telesp.net.br) da Vivo.
Evidências:
$ host -t A nic.br
nic.br has address 200.160.4.6
$ mtr -c 30 -n --report 200.160.4.6
Start: 2020-07-25T12:17:39-0300
HOST: XXXXX Loss% Snt Last Avg Best Wrst StDev
1.|-- 192.168.0.254 0.0% 30 0.4 0.4 0.3 0.4 0.0
2.|-- ??? 100.0 30 0.0 0.0 0.0 0.0 0.0
3.|-- 187.100.179.44 0.0% 30 1.7 2.0 1.6 4.5 0.6
4.|-- ??? 100.0 30 0.0 0.0 0.0 0.0 0.0
$ host -t A globo.com
globo.com has address 186.192.90.5
$ mtr -c 30 -n --report 186.192.90.5
Start: 2020-07-25T12:10:16-0300
HOST: XXXXX Loss% Snt Last Avg Best Wrst StDev
1.|-- 192.168.0.254 0.0% 30 0.4 0.4 0.3 0.4 0.0
2.|-- ??? 100.0 30 0.0 0.0 0.0 0.0 0.0
3.|-- 187.100.179.44 0.0% 30 1.7 2.0 0.8 3.6 0.5
4.|-- ??? 100.0 30 0.0 0.0 0.0 0.0 0.0
$ host -t A time.nist.gov
time.nist.gov is an alias for ntp1.glb.nist.gov.
ntp1.glb.nist.gov has address 132.163.96.1
$ mtr -c 30 -n --report 132.163.96.1
Start: 2020-07-25T12:29:49-0300
HOST: XXXXX Loss% Snt Last Avg Best Wrst StDev
1.|-- 192.168.0.254 0.0% 30 0.4 0.4 0.3 0.5 0.0
2.|-- ??? 100.0 30 0.0 0.0 0.0 0.0 0.0
3.|-- 187.100.179.44 0.0% 30 1.9 1.8 1.6 2.4 0.2
4.|-- ??? 100.0 30 0.0 0.0 0.0 0.0 0.0
Atenciosamente,
César
On Sat, Jul 25, 2020 at 11:00 AM César de Tassis Filho <ctassisf em gmail.com>
wrote:
> Bom dia.
>
> Meu Vivo Fibra doméstico, em São Paulo/SP, está sem rota para 8.8.8.8.
> Está assim desde ontem à noite.
>
> As rotas para o 8.8.4.4 e para os IPv6 do Google Public DNS parecem estar
> OK.
>
> Evidências:
>
> $ mtr -c 30 -n --report 8.8.8.8
> Start: 2020-07-25T10:41:03-0300
> HOST: XXXXX Loss% Snt Last Avg Best Wrst
> StDev
> 1.|-- 192.168.0.254 0.0% 30 0.4 0.4 0.3 0.5
> 0.0
> 2.|-- ??? 100.0 30 0.0 0.0 0.0 0.0
> 0.0
> 3.|-- 187.100.179.44 0.0% 30 1.9 2.4 1.5 19.5
> 3.2
> 4.|-- ??? 100.0 30 0.0 0.0 0.0 0.0
> 0.0
>
> $ mtr -c 30 -n --report 8.8.4.4
> Start: 2020-07-25T10:41:48-0300
> HOST: XXXXX Loss% Snt Last Avg Best Wrst
> StDev
> 1.|-- 192.168.0.254 0.0% 30 0.4 0.4 0.3 0.4
> 0.0
> 2.|-- ??? 100.0 30 0.0 0.0 0.0 0.0
> 0.0
> 3.|-- 187.100.179.42 0.0% 30 1.6 1.9 1.6 3.3
> 0.4
> 4.|-- 187.100.197.218 0.0% 30 2.2 2.1 1.9 2.3
> 0.1
> 5.|-- 187.100.34.128 93.3% 30 2.4 2.5 2.4 2.5
> 0.0
> 6.|-- 209.85.172.178 0.0% 30 3.8 4.0 3.0 7.1
> 1.0
> 7.|-- 108.170.245.161 0.0% 30 4.7 4.4 3.5 4.7
> 0.2
> 8.|-- 72.14.239.225 0.0% 30 3.6 3.5 3.1 3.7
> 0.2
> 9.|-- 8.8.4.4 0.0% 30 3.2 3.4 3.0 3.5
> 0.1
>
> $ mtr -c 30 -n --report --report-wide 2001:4860:4860::8888
> Start: 2020-07-25T10:45:44-0300
> HOST: XXXXX Loss% Snt Last Avg
> Best Wrst StDev
> 1.|-- 2804:431:cfc2:xxxx:xxxx:xxxx:xxxx:xxxx 0.0% 30 0.4 0.4
> 0.3 0.5 0.0
> 2.|-- ??? 100.0 30 0.0 0.0
> 0.0 0.0 0.0
> 3.|-- 2001:12e0:100:1026:a006:1026:a061:10 0.0% 30 0.9 1.7
> 0.9 2.7 0.3
> 4.|-- 2001:12e0:100:1025:a002:1026:a006:10 0.0% 30 2.0 2.0
> 1.2 2.5 0.2
> 5.|-- 2001:12e0:100:1017:a001:1025:a002:10 70.0% 30 2.4 2.3
> 2.2 2.6 0.1
> 6.|-- 2001:12e0:100:1017:a001:1017:a001:1d 0.0% 30 2.3 3.3
> 2.2 19.3 3.1
> 7.|-- 2001:4860:1:1::d84 0.0% 30 3.3 3.4
> 3.2 3.6 0.1
> 8.|-- 2800:3f0:8012::1 0.0% 30 3.6 3.5
> 2.9 3.7 0.2
> 9.|-- 2001:4860:4860::8888 0.0% 30 3.2 3.4
> 3.2 3.6 0.1
>
> $ mtr -c 30 -n --report --report-wide 2001:4860:4860::8844
> Start: 2020-07-25T10:47:01-0300
> HOST: XXXXX Loss% Snt Last Avg
> Best Wrst StDev
> 1.|-- 2804:431:cfc2:xxxx:xxxx:xxxx:xxxx:xxxx 0.0% 30 0.4 0.4
> 0.4 0.5 0.0
> 2.|-- ??? 100.0 30 0.0 0.0
> 0.0 0.0 0.0
> 3.|-- 2001:12e0:100:1026:a006:1026:a061:10 0.0% 30 1.9 1.8
> 1.3 2.7 0.3
> 4.|-- 2001:12e0:100:1025:a002:1026:a006:10 0.0% 30 2.0 2.0
> 1.6 2.6 0.2
> 5.|-- 2001:12e0:100:1017:a001:1025:a002:14 70.0% 30 2.2 2.4
> 2.2 2.6 0.2
> 6.|-- 2001:12e0:100:1017:a001:1017:a001:11 0.0% 30 2.5 2.5
> 2.2 3.9 0.3
> 7.|-- 2001:4860:1:1::d84 0.0% 30 3.3 3.4
> 3.2 3.8 0.2
> 8.|-- ??? 100.0 30 0.0 0.0
> 0.0 0.0 0.0
> 9.|-- 2001:4860:4860::8844 0.0% 30 3.8 3.8
> 3.5 4.0 0.1
>
>
> Eu fiz testes no RIPE Atlas contra o 8.8.8.8[1] e contra o 8.8.4.4[2] mas
> não parece estar afetando toda a rede do AS27699 (TELEFONICA BRASIL S.A).
>
> Mais alguém está passando pelo mesmo problema?
>
> César
>
> [1] https://atlas.ripe.net/measurements/26450256/
> [2] https://atlas.ripe.net/measurements/26450258/
>
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