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From: Baskaran Mohandass <baski@foundrynet.com>
To: netfilter@lists.netfilter.org
Subject: SNAT issue for locally generated UDP packet
Date: Tue, 14 Jun 2005 13:01:56 -0700	[thread overview]
Message-ID: <42AF37B4.8080000@foundrynet.com> (raw)

Hi all,

      I am trying to source nat the packet generated locally using 
iptables. Machine is running Fedora core2 and one of the interface 
address is 5.5.5.7.  Sip server sends a packet with source port 5060 and 
ip address 5.5.5.7. I want to change the IP address and the source port 
when it goes out. Reading the IPtables manual only rule i can think of is
iptables -t nat -A POSTROUTING --protocol udp --source-port 5060  -j 
SNAT --to-source 5.5.5.7:1024-32000.
[root@sipserver2 ~]# uname -a
Linux sipserver2.baski.com 2.6.9-1.667 #1 Tue Nov 2 14:41:25 EST 2004 
i686 i686 i386 GNU/Linux
Unfortunately it does not work. IPtables also says that locally 
generated packets are modified in the output chain and there is not NAT 
capability in there. I went through all the messages in the archive for 
SNAT and OUTPUT, So I would really appreciate any help on this. If there 
is any patch available for this I am ready to try.

Thanks and Regards
..baski


             reply	other threads:[~2005-06-14 20:01 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-06-14 20:01 Baskaran Mohandass [this message]
2005-06-15 13:57 ` SNAT issue for locally generated UDP packet /dev/rob0
  -- strict thread matches above, loose matches on Subject: below --
2005-06-15  8:16 Sietse van Zanen
2005-06-15  8:52 ` Baskaran Mohandass

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