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List:       l7-filter-developers
Subject:    Re: [l7-filter-developers] l7-filter-developers Digest, Vol 19,
From:       "=?UTF-8?B?55m96YeR?=" <cu.platinum () gmail ! com>
Date:       2007-12-30 17:44:44
Message-ID: aaf524190712300944r6ee38f5ejc4a8962fe3173f4a () mail ! gmail ! com
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Hi Matthew Strait, nice to see you again. :)
I read net/netfilter/nf_conntrack_ftp.c, it can handle MAX 8 ports,
port 21 is default.
I think if it can handle all ports then the case will be done. How can we do it?
Maybe we can write a extra module to handle needful
protocols(FTP/SIP/IRC/H323).

2007/12/30, l7-filter-developers-request@lists.sourceforge.net
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>    1. Re: L7-filter-developers Digest, Vol 19,  Issue 5
>       (Ignacio Rodriguez)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Fri, 28 Dec 2007 18:32:16 -0300
> From: "Ignacio Rodriguez" <ignacio@ladelbarrio.com.ar>
> Subject: Re: [l7-filter-developers] L7-filter-developers Digest, Vol
>         19,     Issue 5
> To: "Matthew Strait" <quadong@users.sourceforge.net>,
>         <l7-filter-developers@lists.sourceforge.net>
> Message-ID: <000401c84999$20cfc390$3001a8c0@coloso>
> Content-Type: text/plain; format=flowed; charset="iso-8859-1";
>         reply-type=original
>
> The best objetive could be identifiying voip child traffic...
> Another choice could be identifiying voice, and webcam in microsoft
> messenger...
>
> Regards.
>
> ----- Original Message -----
> From: "Matthew Strait" <quadong@users.sourceforge.net>
> To: "Clayton Macleod" <cherrytwist@gmail.com>
> Cc: <l7-filter-developers@lists.sourceforge.net>
> Sent: Friday, December 28, 2007 4:55 PM
> Subject: Re: [l7-filter-developers] L7-filter-developers Digest, Vol 19,
> Issue 5
>
>
> >> Port is irrelevant for L7-filter.  Any new connection that matches any
> >> pattern gets matched no matter what port is used.  Kind of the reason
> >> for L7-filter's existence, as before L7-filter existed it was already
> >> very easy to watch for traffic on a certain port.  L7-filter lets you
> >> watch for traffic without having to worry about ports at all.
> >
> > True for the kernel version of l7-filter, but we're discussing the
> > userspace version of l7-filter, which can't track child connections that
> > lack identifying features at the application layer, such as the ones FTP
> > uses.
> >
> > -Matthew
> >
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> End of l7-filter-developers Digest, Vol 19, Issue 7
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