[caiu] bradesco empresas via ipv6
Alan Mendes
alan em zuknet.com
Ter Nov 21 12:45:54 -02 2017
Bom tarde Antonio.
Estou tentando desde inicio de 2016 falar com Alguém do Bradesco para
explicar isto para eles.
Infelizmente cheguei ao ponto de "ou desativo o ipv6 no cliente meu" ou
mudo o MTU.
Como por regra meus concentradores todos disponibilizam ipv6 e os
equipamento ja vão com firmware padrão nossa para ipv6, achei melhor
corrigir na borda.
Antonio, caso você tenha algum contato com alguem do Bradesco ou alguma
forma de alarmar isso pelo Nic.Br, ficaria grato, pois acho uma tremenda
gambiarra fazer essa regra de MTU.
infelizmente a situação me fez tomar essa medida, devido não conseguir
contato com Bradesco.
*ZUKNET NETWORKS LTDA. MEAlan Mendes Morais*
*Email:* alan em zuknet.com
*Tel:* 15 3376-9893
www.zuknet.com
http://as262333.peeringdb.com
http://bgp.he.net/AS262333
Em 21 de novembro de 2017 11:57, NOC - FalcãoNET <noc em falcao.net.br>
escreveu:
> Bom dia Moreiras.
>
> Não sou correntista do Bradesco, mas meus clientes se queixam do acesso
> via IPv6, só conseguem quando desativam.
>
> Solicitei a URL a um cliente, ele me passou, segue:
>
> https://www.ne12.bradesconetempresa.b.br/ibpjlogin/login.jsf
>
> Att,
>
> Emanuel Falcão
>
>
> Em 21/11/17 10:41, Antonio M. Moreiras escreveu:
>
> Qual exatamente a URL do bradesco que apresenta esse problema?
>>
>> Moreiras.
>>
>> Em 20/11/2017 16:22, Marcelo Silvestro escreveu:
>>
>>> Sim, pelo menos pra mim resolveu!
>>>
>>>
>>> Marcelo Silvestro
>>>
>>> (42)3657-1771 (42)99128-2727
>>> marcelo em infoshopnet.com.br
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> ---- On Seg, 20 nov 2017 16:10:32 -0200 <Henrique em infovaletelecom.c
>>> om.br> wrote ----
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> Bom dia Pessoal,
>>>
>>>
>>> criando essa regra no mikrotik, resolve o problema de acesso ao Bradesco
>>>
>>> via ipv6 ?
>>>
>>>
>>> ja testaram ?
>>>
>>> ---
>>>
>>>
>>> Em 20/11/2017 14:19, Alan Mendes escreveu:
>>>
>>>
>>> > Desculpe é 1420
>>>
>>> >
>>>
>>> > Segue minha regra
>>>
>>> >
>>>
>>> > /ipv6 firewall mangle
>>>
>>> > add action=change-mss chain=forward new-mss=1420 passthrough=yes
>>>
>>> > protocol=tcp \
>>>
>>> > tcp-flags=syn
>>>
>>> >
>>>
>>> > *ZUKNET NETWORKS LTDA. MEAlan Mendes Morais*
>>>
>>> > *Email:* alan em zuknet.com
>>>
>>> > *Tel:* 15 3376-9893
>>>
>>> >
>>>
>>> > www.zuknet.com [1]
>>>
>>> > http://as262333.peeringdb.com [2]
>>>
>>> > http://bgp.he.net/AS262333 [3]
>>>
>>> >
>>>
>>> > Em 20 de novembro de 2017 13:49, Marcelo Silvestro <
>>>
>>> > marcelo em infoshopnet.com.br> escreveu:
>>>
>>> >
>>>
>>> >> Boa tarde Alan,
>>>
>>> >>
>>>
>>> >> Criei a seguinte regra de firewall no concentrador pppoe
>>>
>>> >>
>>>
>>> >> /ipv6 firewall mangle add action=change-mss chain=forward
>>>
>>> >> comment="Alterando o MTU de todas conexoes TCP" new-mss=1450
>>>
>>> >> passthrough=yes protocol=tcp tcp-flags=syn
>>>
>>> >>
>>>
>>> >> na borda não consigo testar de momento, uso vyos e o firewall
>>> esta
>>>
>>> >> desativado.
>>>
>>> >>
>>>
>>> >> á algo errado na regra ?
>>>
>>> >>
>>>
>>> >> Marcelo Silvestro
>>>
>>> >>
>>>
>>> >> (42)3657-1771 (42)99128-2727
>>>
>>> >> marcelo em infoshopnet.com.br
>>>
>>> >>
>>>
>>> >> ---- On Seg, 20 nov 2017 13:08:11 -0200 Alan Mendes &
>>> amp;lt;alan em zuknet.com>
>>>
>>> >> wrote ----
>>>
>>> >>
>>>
>>> >> Faz uma regra para mudar o MTU na sua bordar de todo ipv6 para
>>> 1450 que
>>>
>>> >>
>>>
>>> >> funciona . heheheh , eles devem ta bloqueando algo lá e zuando
>>> o mtu
>>>
>>> >>
>>>
>>> >> *ZUKNET NETWORKS LTDA. MEAlan Mendes Morais*
>>>
>>> >>
>>>
>>> >> *Email:* alan em zuknet.com
>>>
>>> >>
>>>
>>> >> *Tel:* 15 3376-9893
>>>
>>> >>
>>>
>>> >> www.zuknet.com [1]
>>>
>>> >>
>>>
>>> >> http://as262333.peeringdb.com [2]
>>>
>>> >>
>>>
>>> >> http://bgp.he.net/AS262333 [3]
>>>
>>> >>
>>>
>>> >> Em 20 de novembro de 2017 09:38, Eduardo Rigler &
>>> amp;lt;erigler em gmail.com>
>>>
>>> >>
>>>
>>> >> escreveu:
>>>
>>> >>
>>>
>>> >> > Happy Eyeballs manda lembranças :)
>>>
>>> >>
>>>
>>> >> >
>>>
>>> >>
>>>
>>> >> > []´s
>>>
>>> >>
>>>
>>> >> >
>>>
>>> >>
>>>
>>> >> >
>>>
>>> >>
>>>
>>> >> > Em 20 de novembro de 2017 09:37, Marcelo Silvestro
>>> <
>>>
>>> >>
>>>
>>> >> > marcelo em infoshopnet.com.br> escreveu:
>>>
>>> >>
>>>
>>> >> >
>>>
>>> >>
>>>
>>> >> > > bom dia,
>>>
>>> >>
>>>
>>> >> > >
>>>
>>> >>
>>>
>>> >> > >
>>>
>>> >>
>>>
>>> >> > >
>>>
>>> >>
>>>
>>> >> > > Alguém como problemas em acessar bradesco
>>> empresas via ipv6? não
>>>
>>> >>
>>>
>>> >> > > consigo acessar nem pelo navegador do
>>> bradesco nem pelo app
>>>
>>> >> mobile.
>>>
>>> >>
>>>
>>> >> > >
>>>
>>> >>
>>>
>>> >> > >
>>>
>>> >>
>>>
>>> >> > >
>>>
>>> >>
>>>
>>> >> > > já testei pela level3 e copel.
>>>
>>> >>
>>>
>>> >> > >
>>>
>>> >>
>>>
>>> >> > >
>>>
>>> >>
>>>
>>> >> > >
>>>
>>> >>
>>>
>>> >> > > ipv4 tudo normal.
>>>
>>> >>
>>>
>>> >> > >
>>>
>>> >>
>>>
>>> >> > >
>>>
>>> >>
>>>
>>> >> > >
>>>
>>> >>
>>>
>>> >> > >
>>>
>>> >>
>>>
>>> >> > >
>>>
>>> >>
>>>
>>> >> > > Marcelo Silvestro
>>>
>>> >>
>>>
>>> >> > >
>>>
>>> >>
>>>
>>> >> > > (42)3657-1771 (42)99128-2727
>>>
>>> >>
>>>
>>> >> > > marcelo em infoshopnet.com.br
>>>
>>> >>
>>>
>>> >> > >
>>>
>>> >>
>>>
>>> >> > >
>>>
>>> >>
>>>
>>> >> > >
>>>
>>> >>
>>>
>>> >> > >
>>>
>>> >>
>>>
>>> >> > >
>>>
>>> >>
>>>
>>> >> > >
>>>
>>> >>
>>>
>>> >> > >
>>>
>>> >>
>>>
>>> >> > >
>>>
>>> >>
>>>
>>> >> > > ______________________________
>>> _________________
>>>
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>>>
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> --
> Emanuel Falcão
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