[FUG-BR] parece que o pf nao le as regras!
Marcio Antunes
mantunes.listas em gmail.com
Quarta Julho 25 15:17:46 BRT 2007
manda o seu rc.conf tambem..
Em 25/07/07, Cleyton Bertolim<cbertolim at gmail.com> escreveu:
> Estou enviando o meu PF.CONF para que voces possam ter mais detalhes
> da configuracao que tenho aqui.
>
> segue:
>
>
> ##### INICIO DO ARQUIVO #######################
>
> ############################################################
> ### Macros #################################################
> ############################################################
> internal = "vr0"
> wts_vpn = "rl0"
> external = "rl1"
> mpd = "ng0"
>
> local_net = "192.168.247.0/24"
> ip_fw_internal = "192.168.247.254"
> ip_fw_external = "10.1.1.2"
> ip_fw_wts_vpn = "202.4.143.40"
>
> nonroutable = "{ 192.168.0.0/16, 127.0.0.0/8, \
> 172.16.0.0/12, 0.0.0.0/8, 169.254.0.0/16, \
> 192.0.2.0/24, 204.152.64.0/23, 224.0.0.0/3, \
> 255.255.255.255/32 }"
>
> table <caixa_ips> { 200.201.173.68 200.201.173.68/32 \
> 200.201.166.200 200.201.166.200/32 200.201.174.207 \
> 200.201.174.207/32 200.252.47.0/24 200.201.160.0/20 \
> 200.201.0.0/16 200.165.60.137/32 200.242.61.4 \
> 200.201.173.0/32 }
>
>
> #--- LOG de estatisticas de filtragem ------------------####
> set block-policy drop
> set loginterface $external
> set loginterface $wts_vpn
> set state-policy if-bound
>
>
> #--- Nao filtra na interface loopback e NG0 ------------####
> set skip on lo0
> set skip on $mpd
>
>
> #--- faz scrub em pacotes que chegam -------------------####
> scrub on { $external $internal $wts_vpn } all reassemble tcp
>
>
>
> ############################################################
> ### NAT dos enderecos IP internos do range ###
> ### 192.168.247.0/24 para o endereco IP roteavel/valido ###
> ### da interface rl0 ###
> ############################################################
> nat pass on $external from $local_net to any -> $external
> nat pass on $wts_vpn from $local_net to any -> $wts_vpn
>
>
> ############################################################
> ### Proxy transparente #####################################
> ############################################################
> rdr pass on $internal inet proto tcp from $local_net to any port 3389
> -> $ip_fw_wts_vpn
>
> rdr pass on $internal inet proto tcp from $local_net to !<caixa_ips>
> port 80 -> $ip_fw_internal port 3128
>
>
> ############################################################
> ### Filtragem de pacotes ###################################
> ############################################################
> block all
> antispoof quick for { $internal $external $wts_vpn } inet
>
>
> #--- Loopback @ 127.0.0.1/8 ----------------------------####
> pass out quick on lo0 all
> pass in quick on lo0 all
>
>
> #--- NG0 @ 192.168.247.1/24 ----------------------------####
> pass out quick on $mpd all modulate state
> pass in quick on $mpd all modulate state
>
>
> #--- Rede Local @ 192.168.247.254/24 -------------------####
> pass out quick on $internal all modulate state
> pass in quick on $internal all modulate state
> pass in quick on $internal inet proto icmp all modulate state
>
>
> #--- Link BrT/WTS_VPN @ 202.4.143.40/29 ----------------####
> block drop out log quick on $wts_vpn from any to $nonroutable
> pass out quick on $wts_vpn from any to any modulate state
>
> pass in log quick on $wts_vpn inet proto tcp from 202.37.33.54 to
> $ip_fw_wts_vpn port 1723 flags S/SA synproxy state
> pass in log quick on $wts_vpn inet proto tcp from any to
> $ip_fw_wts_vpn port 50000 flags S/SA synproxy state
>
> block drop in log quick on $wts_vpn inet proto tcp from any to any flags FUP/FUP
> block drop in log quick on $wts_vpn inet proto tcp from any to any flags SF/SFRA
> block drop in log quick on $wts_vpn inet proto tcp from any to any flags /SFRA
> block drop in quick on $wts_vpn proto tcp from any to any port = 113
> block drop in log quick on $wts_vpn inet proto icmp from any to any
> icmp-type redir
> block drop in log quick on $wts_vpn from $nonroutable to any
> block drop in log quick on $wts_vpn all
> block return
>
>
> #--- Link BrT/ADSL @ 10.1.1.2/8 -------------------------####
> block drop out log quick on $external from any to $nonroutable
> pass out quick on $external from any to any modulate state
>
> pass in log quick on $external inet proto tcp from any to
> $ip_fw_external port 50000 flags S/SA synproxy state
>
> block drop in log quick on $external inet proto tcp from any to any
> flags FUP/FUP
> block drop in log quick on $external inet proto tcp from any to any
> flags SF/SFRA
> block drop in log quick on $external inet proto tcp from any to any flags /SFRA
> block drop in quick on $external proto tcp from any to any port = 113
> block drop in log quick on $external inet proto icmp from any to any
> icmp-type redir
> block drop in log quick on $external from $nonroutable to any
> block drop in log quick on $external all
> block return
>
> #### FINAL DO ARQUIVO #############
>
>
>
>
>
> Em 25/07/07, Welkson Renny de Medeiros<welkson at focusautomacao.com.br> escreveu:
> > Cleyton, é um belo chute... mas lá vai... comigo também aconteceu isso... se
> > não me engano foi até o "irado" me deu umas dicas e consegui resolver... nas
> > minhas regras tinha referência a alguns "domínios", e como o bsd ainda
> > estava startando não conseguia resolver o domínio e não carregava nada...
> > (tipo: block in on $int_if from any to globo.com)... não sei se o mesmo erro
> > serve para nomes de pcs cadastrados no arquivo /etc/hosts... só sugestão! no
> > flames!! :-)
> >
> >
> > --
> > Welkson Renny de Medeiros
> > Focus Automação Comercial
> > Desenvolvimento / Gerência de Redes
> > welkson at focusautomacao.com.br
> >
> >
> >
> > Powered by ....
> >
> > (__)
> > \\\'',)
> > \/ \ ^
> > .\._/_)
> >
> > www.FreeBSD.org
> >
> > ----- Original Message -----
> > From: "Cleyton Bertolim" <cbertolim at gmail.com>
> > To: "Lista Brasileira de Discussão sobre FreeBSD (FUG-BR)"
> > <freebsd at fug.com.br>
> > Sent: Wednesday, July 25, 2007 2:29 PM
> > Subject: [FUG-BR] parece que o pf nao le as regras!
> >
> >
> > Boa tarde BSD's!!!!!
> >
> > Seguinte, tenho um servidor com FreeBSD-6.2-Stable, rodando o MPD como
> > servidor de VPN na porta 1723, e com PF como firewall. As regras do pf
> > estao funcionando perfeitamente!
> >
> > Quando ligo este servidor, ele carrega a VPN, o PF inicia sem nenhuma
> > mensagem de erro, eu me conecto ao servidor de VPN remotamente, mas
> > quando dou um PING do meu micro pra dentro da rede VPN, nao consigo
> > resposta alguma, e tambem quando tento acessar algum compartilhamento
> > pela VPN, tambem nao da. É como se a rede estivesse desconectada!!!
> > Mas, se entro no servidor de VPN por SSH e digito: pfctl -f
> > /etc/pf.conf, ele comeca a funcionar tudo normalmente..... consigo
> > pingar as maquinas dentro da VPN e tambem acessar seus
> > compartilhamentos!!!!
> >
> > Parece que so funciona as coisas depois de executar o comando pfctl -f
> > /etc/pf.conf !!!!!
> >
> > Como dentro do arquivo /etc/rc.conf tem as instrucoes pra iniciar o pf
> > e tambem o arquivo de regras pf.conf, ele esta lendo as regras, mas
> > nesse caso da VPN, parece que mesmo com a vpn conectada, tenho que dar
> > o comando pra reler as regras do PF.
> >
> > Alguem ja passou por isso??
> > O que fazer??
> >
> > Desde ja meus agradecimentos!
> >
> > Cleyton Bertolim.
> > -------------------------
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> >
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