On Mon, 20 Nov 2006, Bob Beers wrote:
I want to dynamically create DNAT rules for
RTP streams (port-mapping for a SIP proxy).
Have you considered testing any of the patches from netfilter's
patch-o-matic?
There are two patches that seem promising. Quoting from the netfilter
website:
http://www.netfilter.org/patch-o-matic/pom-extra.html#pom-extra-rtsp-conntrack
rtsp-conntrack - RTSP connection tracking and nat helper
Author: Tom Marshall <tmarshall@real.com>
Status: Beta - needs some testing and porting to 2.6.x
This patch adds CONFIG_IP_NF_RTSP: support for the RTSP protocol.
This allows UDP transports to be setup properly, including RTP and RDT.
http://www.netfilter.org/patch-o-matic/pom-extra.html#pom-extra-sip-conntrack-nat
ip-conntrack-nat - SIP connection tracking and NAT helper
Author: Christian Hentschel <chentschel@arnet.com.ar>
Status: Alpha
This adds CONFIG_IP_NF_SIP: SIP support module for netfilter
connection tracking and NAT.
The SIP conntrack/NAT modules support the connection tracking/NATing of
the data streams requested on the dynamic RTP/RTCP ports, as well as
mangling
of SIP requests/responses.
Joe
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