Date: Tue, 11 Oct 2011 20:24:39 +0000 From: "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net> To: Michael Proto <mike@jellydonut.org> Cc: freebsd-pf@freebsd.org Subject: Re: Filtering inside IPSec tunnel Message-ID: <3E6628B4-CABB-41C3-8630-681F08690ABF@lists.zabbadoz.net> In-Reply-To: <CAGAnWo37UfOHBs=%2BP2Hs-0BiDeWZkkwGA4PG0qPbhgDghKRLcQ@mail.gmail.com> References: <94876.1318358460.12206338191212019712@ffe11.ukr.net> <CAGAnWo37UfOHBs=%2BP2Hs-0BiDeWZkkwGA4PG0qPbhgDghKRLcQ@mail.gmail.com>
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On 11. Oct 2011, at 19:37 , Michael Proto wrote:
> 2011/10/11 Виталий Владимирович <artemrts@ukr.net>:
>>
>> I have the IPSec tunnel FreeBSD <-> CISCO. Tunnel works fine but I can filtering traffic inside tunnel with PF.
>>
>> pf.conf
>>
>> ......
>>
>> ipsec_if="gif0"
>>
>> .......
>> block in all
>> block out all
>>
>> ### EXT_IF_OUT
>>
>> pass out log quick on $ext_if inet from ($ext_if) to any modulate state
>>
>> ### EXT_IF_IN
>>
>> pass in quick on $ext_if inet proto udp from $cisco to ($ext_if) port 500
>> pass in quick on $ext_if inet proto {esp ah ipencap} from $cisco to ($ext_if)
>>
>> ### IPSec VPN INTERFACE
>> #pass in quick on $ipsec_if inet from any to $ipsec_if
>> #pass out quick on $ipsec_if inet from $ipsec_if to any
>> block quick on $ipsec_if
>>
>> But I still ping the second point of IPSec tunnel.
>> Where is my mistake?
>
> IIRC you also need the following in your kernel config:
>
> options IPSEC_FILTERTUNNEL
>
> (I think it used to be called IPSEC_FILTERGIF, depending on what
> version of FreeBSD you're running)
yes and there are sysctls these days:
net.inet.ipsec.filtertunnel: 1
net.inet6.ipsec6.filtertunnel: 1
/bz
--
Bjoern A. Zeeb You have to have visions!
Stop bit received. Insert coin for new address family.
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