[FUG-BR] duvidas

enochian em dunkelheit.org enochian em dunkelheit.org
Quarta Janeiro 23 08:48:09 BRST 2008


ROUTER ----> xl0 - FreeBSD - rl0 ------> switch ---> rede interna
Nao percebi nada que possa estar afetando. talvez o erro esteja em sua 
infra ou configuracoes de clientes.
Obs: esse script de firewall pode ser muito melhorado.

Alessandro Fortuna escreveu:
> 00001   0     0 allow ip from any to any via lo0
> 00001   0     0 deny ip from any to 127.0.0.0/8
> 00001   0     0 deny ip from 127.0.0.0/8 to any
> 00001  33  3148 deny log logamount 100 ip from any to any not verrevpath in
> 00002   0     0 deny ip from any to any in frag
> 00002   0     0 deny tcp from any to any dst-port 137-139
> 00002   0     0 deny tcp from any 137-139 to any
> 00002   7  1123 deny udp from any to any dst-port 137-139
> 00002   0     0 deny udp from any 137-139 to any
> 00002   0     0 deny tcp from any to any dst-port 445
> 00002   0     0 deny tcp from any 445 to any
> 00002   0     0 deny udp from any to any dst-port 445
> 00002   0     0 deny udp from any 445 to any
> 00002   0     0 deny tcp from any to any dst-port 1512
> 00002   0     0 deny tcp from any 1512 to any
> 00002   0     0 deny udp from any to any dst-port 1512
> 00002   0     0 deny udp from any 1512 to any
> 00002   0     0 deny icmp from any to any icmptypes 3
> 00002   0     0 deny icmp from any to any icmptypes 4
> 00002   0     0 deny icmp from any to any icmptypes 9
> 00002   0     0 deny icmp from any to any icmptypes 11
> 00002   0     0 deny icmp from any to any icmptypes 12
> 00090   0     0 skipto 65000 tcp from any to 200.141.128.76
> 00090   0     0 skipto 65000 tcp from any to 200.201.174.0/24
> 00100   0     0 fwd 127.0.0.1,3128 tcp from 192.168.1.0/24 to any dst-port 
> 80 via rl0
> 00112   0     0 pipe 112 ip from 192.168.1.3 to any in via rl0
> 00113   0     0 pipe 113 ip from any to 192.168.1.3 out via rl0
> 01001   0     0 pipe 1001 ip from 192.168.1.2 to any in via rl0
> 01002   0     0 pipe 1002 ip from any to 192.168.1.2 out via rl0
> 01005   0     0 pipe 1005 ip from 192.168.1.4 to any in via xl0
> 01006   0     0 pipe 1006 ip from any to 192.168.1.4 out via xl0
> 01007   0     0 pipe 1007 ip from 192.168.1.10 to any in via xl0
> 01008   0     0 pipe 1008 ip from any to 192.168.1.10 out via xl0
> 01009   0     0 pipe 1009 ip from 192.168.1.11 to any in via xl0
> 01010   0     0 pipe 1010 ip from any to 192.168.1.11 out via xl0
> 01011   0     0 pipe 1011 ip from 192.168.1.12 to any in via xl0
> 01012   0     0 pipe 1012 ip from any to 192.168.1.12 out via xl0
> 01013   0     0 pipe 1013 ip from 192.168.1.13 to any in via xl0
> 01014   0     0 pipe 1014 ip from any to 192.168.1.13 out via xl0
> 01015   0     0 pipe 1015 ip from 192.168.1.14 to any in via xl0
> 01016   0     0 pipe 1016 ip from any to 192.168.1.14 out via xl0
> 01017   0     0 pipe 1017 ip from 192.168.1.15 to any in via xl0
> 01018   0     0 pipe 1018 ip from any to 192.168.1.15 out via xl0
> 01019   0     0 pipe 1019 ip from 192.168.1.35 to any in via xl0
> 01020   0     0 pipe 1020 ip from any to 192.168.1.35 out via xl0
> 01021   0     0 pipe 1021 ip from 192.168.1.36 to any in via xl0
> 01022   0     0 pipe 1022 ip from any to 192.168.1.36 out via xl0
> 01023   0     0 pipe 1023 ip from 192.168.1.37 to any in via xl0
> 01024   0     0 pipe 1024 ip from any to 192.168.1.37 out via xl0
> 01025   0     0 pipe 1025 ip from 192.168.1.38 to any in via xl0
> 01026   0     0 pipe 1026 ip from any to 192.168.1.38 out via xl0
> 01027   0     0 pipe 1027 ip from 192.168.1.39 to any in via xl0
> 01028   0     0 pipe 1028 ip from any to 192.168.1.39 out via xl0
> 01029   0     0 pipe 1029 ip from 192.168.1.40 to any in via xl0
> 01030   0     0 pipe 1030 ip from any to 192.168.1.40 out via xl0
> 01031   0     0 pipe 1031 ip from 192.168.1.41 to any in via xl0
> 01032   0     0 pipe 1032 ip from any to 192.168.1.41 out via xl0
> 01033   0     0 pipe 1033 ip from 192.168.1.43 to any in via xl0
> 01034   0     0 pipe 1034 ip from any to 192.168.1.43 out via xl0
> 01035   0     0 pipe 1035 ip from 192.168.1.44 to any in via xl0
> 01036   0     0 pipe 1036 ip from any to 192.168.1.44 out via xl0
> 01037   0     0 pipe 1037 ip from 192.168.1.45 to any in via xl0
> 01038   0     0 pipe 1038 ip from any to 192.168.1.45 out via xl0
> 01039   0     0 pipe 1039 ip from 192.168.1.46 to any in via xl0
> 01040   0     0 pipe 1040 ip from any to 192.168.1.46 out via xl0
> 01041   0     0 pipe 1041 ip from 192.168.1.47 to any in via xl0
> 01042   0     0 pipe 1042 ip from any to 192.168.1.47 out via xl0
> 01043   0     0 pipe 1043 ip from 192.168.1.48 to any in via xl0
> 01044   0     0 pipe 1044 ip from any to 192.168.1.48 out via xl0
> 01045   0     0 pipe 1045 ip from 192.168.1.50 to any in via xl0
> 01046   0     0 pipe 1046 ip from any to 192.168.1.50 out via xl0
> 01047   0     0 pipe 1047 ip from 192.168.1.52 to any in via xl0
> 01048   0     0 pipe 1048 ip from any to 192.168.1.52 out via xl0
> 01049   0     0 pipe 1049 ip from 192.168.1.53 to any in via xl0
> 01050   0     0 pipe 1050 ip from any to 192.168.1.53 out via xl0
> 01051   0     0 pipe 1051 ip from 192.168.1.55 to any in via xl0
> 01052   0     0 pipe 1052 ip from any to 192.168.1.55 out via xl0-
> 01053   0     0 pipe 1053 ip from 192.168.1.56 to any in via xl0
> 01054   0     0 pipe 1054 ip from any to 192.168.1.56 out via xl0
> 01055   0     0 pipe 1055 ip from 192.168.1.57 to any in via xl0
> 01056   0     0 pipe 1056 ip from any to 192.168.1.57 out via xl0
> 01059   0     0 pipe 1059 ip from 192.168.1.59 to any in via xl0
> 01060   0     0 pipe 1060 ip from any to 192.168.1.59 out via xl0
> 01061   0     0 pipe 1061 ip from 192.168.1.60 to any in via xl0
> 01062   0     0 pipe 1062 ip from any to 192.168.1.60 out via xl0
> 01063   0     0 pipe 1063 ip from 192.168.1.61 to any in via xl0
> 01064   0     0 pipe 1064 ip from any to 192.168.1.61 out via xl0
> 65000 222 40016 divert 8668 ip from any to any via xl0
> 65500   1    44 deny log logamount 100 ip from any to any { src-ip 
> 10.0.0.0/8 or dst-ip 10.0.0.0/8 } out via xl0
> 65500   0     0 deny log logamount 100 ip from any to any { src-ip 
> 172.16.0.0/12 or dst-ip 172.16.0.0/12 } out via xl0
> 65500   0     0 deny log logamount 100 ip from any to any { src-ip 
> 192.168.0.0/16 or dst-ip 192.168.0.0/16 } out via xl0
> 65535 237 41575 allow ip from any to any
>
> ----- Original Message ----- 
> From: <enochian em dunkelheit.org>
> To: ""Lista Brasileira de Discussão sobre FreeBSD (FUG-BR)"" 
> <freebsd em fug.com.br>
> Sent: Wednesday, January 23, 2008 12:47 AM
> Subject: Re: [FUG-BR] duvidas
>
>
> opa melhorando :)
>
> Digite ai:
> ipfw show
> e cole as regras de firewall.
>
> Alessandro Fortuna escreveu:
>   
>> Amigo aqui eu tenho um switch 3Com que nele vao todos os meus cabos de 
>> rede
>> tanto servidores como radios e cisco router, antigamente eu tinha um
>> servidor FreeBSD que ´até então antes de apresentar problemas de Hardware
>> nunca havia dado nenhum problema na rede, agora acabei de montar um 
>> servidor
>> FreeBSD 6.2, quando coloco eu diretamente na placa de rede interna dele eu
>> navego normalmente mas quando eu coloco ele no switch que no caso todos os
>> clientes iram começar passar pelo meu servidor que ele faz nat para meus
>> clientes, ninguem consegue ping ele inclusive eu.
>>
>> xl0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
>>         options=9<RXCSUM,VLAN_MTU>
>>         inet 201.91.x.60 netmask 0xffffff00 broadcast 201.91.x.255
>>         ether 00:0a:0d:d4:5f:c5
>>         media: Ethernet autoselect (100baseTX <full-duplex>)
>>         status: active
>> rl0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
>>         options=8<VLAN_MTU>
>>         inet 192.168.1.254 netmask 0xffffff00 broadcast 192.168.1.255
>>         ether 00:40:f4:61:66:2e
>>         media: Ethernet autoselect (100baseTX <full-duplex>)
>>         status: active
>> plip0: flags=108810<POINTOPOINT,SIMPLEX,MULTICAST,NEEDSGIANT> mtu 1500
>> lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
>>         inet6 fe80::1%lo0 prefixlen 64 scopeid 0x4
>>         inet6 ::1 prefixlen 128
>>         inet 127.0.0.1 netmask 0xff000000
>>
>>
>>
>> 2008/1/22, enochian em dunkelheit.org <enochian em dunkelheit.org>:
>>
>>     
>>> Seja mais objetivo, mostre os erros por completo... nao tem como
>>> adivinhar sua duvida...
>>>
>>> T+
>>>
>>> Alessandro Fortuna escreveu:
>>>
>>>       
>>>> Boa noite pessoal, monte um servidor FreeBSD com duas placas de rede uma
>>>>
>>>>         
>>> com ip real e outra com ip de rede interna, vem um cabo de rede direto 
>>> que
>>> liga na placa de IP Real e outra placa de rede liga em um hub  que ficam
>>> ligadas duas maquinas clientes, entao com nos dois o servidores o 
>>> servidor
>>> funciona tranquilamente e quando eu coloco ele na rede para meus clientes
>>> navegarem eu nao consigo ping meu gateway que no caso eh ele e fica dando
>>> erros Kernel: arp: ....
>>>
>>>       
>>>> alguém pode me ajudar, meu controle de banda eh feito por ipfw e squid
>>>>
>>>>         
>>> para cache de paginas.
>>>
>>>       
>>>> -------------------------
>>>> Histórico: http://www.fug.com.br/historico/html/freebsd/
>>>> Sair da lista: https://www.fug.com.br/mailman/listinfo/freebsd
>>>>
>>>>
>>>>         
>>> -------------------------
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>>> Sair da lista: https://www.fug.com.br/mailman/listinfo/freebsd
>>>
>>>
>>>       
>> -------------------------
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>>
>>     
>
> -------------------------
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>
> -------------------------
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>   



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