From: Pascal Hambourg <pascal.mail@plouf.fr.eu.org>
To: netfilter@lists.netfilter.org
Subject: Re: Is ip_conntrack_ftp needed for 1:1 nat?
Date: Wed, 07 Jun 2006 21:10:17 +0200 [thread overview]
Message-ID: <44872499.7050608@plouf.fr.eu.org> (raw)
In-Reply-To: <A78C6C481BFAE949BC5990E1EEB2FE1257C7@q.LeBlancNet.us>
Robert LeBlanc a écrit :
> the FTP protocol contains the source IP and port,
The _destination_ address and port.
> which wouldn't
> make sense since it is a private address. At least that is what I
> understand of the FTP protocol.
>
> Are there any other protocols that have issues like this that I'm not
> aware of?
You can have an idea by looking at the available conntrack/NAT helper
modules (ip_conntrack_* and ip_nat_*) for the Linux kernel : IRC DCC
(file transfer and peer to peer communication with an IRC client), TFTP,
PPTP, some communication/multimedia/peer to peer protocols such as
H.323/Netmeeting, RTSP, SIP, MSN Messenger, DirectX, MMS (Microsoft
Streaming Media), Talk...
next prev parent reply other threads:[~2006-06-07 19:10 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-06-07 14:57 Is ip_conntrack_ftp needed for 1:1 nat? Robert LeBlanc
2006-06-07 15:01 ` Sietse van Zanen
2006-06-07 19:10 ` Pascal Hambourg [this message]
-- strict thread matches above, loose matches on Subject: below --
2006-06-06 16:37 Robert LeBlanc
2006-06-06 15:52 Robert LeBlanc
2006-06-06 16:16 ` Alexandru Dragoi
2006-06-07 12:56 ` Pascal Hambourg
2006-06-07 14:32 ` Sietse van Zanen
2006-06-07 15:16 ` Pascal Hambourg
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