Date: Mon, 20 Aug 2001 02:02:37 +0100 From: Brian Somers <brian@Awfulhak.org> To: "reza jamshid" <rezaj_@hotmail.com> Cc: freebsd-security@FreeBSD.ORG, brian@freebsd-services.com Subject: Re: getting DCC fully functioning with ipnat/ipf Message-ID: <200108200102.f7K12bU08800@hak.lan.Awfulhak.org> In-Reply-To: Message from "reza jamshid" <rezaj_@hotmail.com> of "Mon, 20 Aug 2001 07:47:38 %2B0930." <F140318XjHDCHBDOVhs00011ad5@hotmail.com>
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Given that you're nat'ing on tun0, I guess you might be using ppp(8).
If you are, throw away your ipnat/ipf stuff and just use ppp's -nat
switch instead. It gets DCC right (as well as other things like
pings, traceroute, active ftp etc (pings may be fixed in ipnat these
days - I don't know for sure though)).
> Hi,
>
> Up until now my firewall/router (FreeBSD 4.3) works fine, but I havent been
> able to get DCC resuming and send to work from a machine inside my network.
>
> I'm not sure if this has anything to do with my current rules setup, or if i
> am missing something.
>
> >cat /etc/ipnat.rules
>
> map ed0 192.168.1.0/24 -> 0/32
>
> >cat /etc/ipf.rules
>
> # Pass everything out of tun0
>
> block out all
> pass out quick on lo0 all
> pass out quick on ed1 all
> pass out quick on tun0 proto tcp all flags S/SA keep state keep frags
> pass out quick on tun0 proto udp all keep state keep frags
> pass out quick on tun0 proto icmp all keep state keep frags
> pass out quick on tun0 all
>
> # Pass lo0 and dc0, block the rest
>
> block in log all
> pass in quick on lo0 all
> pass in quick on ed1 all
>
>
> I was told that I need to install an irc proxy like tircproxy?
>
> Has anyone done this successfully and can help shed some light?
>
>
> TIA
--
Brian <brian@freebsd-services.com> <brian@Awfulhak.org>
http://www.freebsd-services.com/ <brian@[uk.]FreeBSD.org>
Don't _EVER_ lose your sense of humour ! <brian@[uk.]OpenBSD.org>
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