[plug] help with SIP/RTP protocol

[Jon Miller]

Yes it is, there is a application call MyNetFone that I cannot get RTP to get past firewall.

Jon

>>> billk at iinet.net.au 8:04:47 pm 31/03/2006 >>>
Can of worms!  Is it RTP audio streaming, VoIP, ...

Both can be 'difficult' if RTP is dynamically allocating ports.

BillK


On Sat, 2006-04-01 at 11:22 +0800, Jon Miller wrote:
> I need to get RTP to go both ways thru our firewall (Debian 3.1 iptables).
> I have constructed the following, but it is not working.
> I can see the packets coming from the workstation on the LAN, but I cannot see RTP between the firewall and the router.  I'm sure the firewall is restricting or filtering this out.
> I've constructed the OUTPUT rule to be something like 
> $IPT -A OUTPUT -i $INT_IFACE -p udp --sport 49152:65535 -j ACCEPT$IPT -A OUTPUT -i $INT_IFACE -p udp --sport 7824 -j ACCEPT
> 
> The INPUT rule is something like:
> $IPT -A INPUT -i $EXT_IFACE -p udp --sport 49152:65535 -j ACCEPT
> $IPT -A INPUT -i $EXT_IFACE -p udp --sport 7824 -j ACCEPT
> 
> Does this look right?
> 
> 
> Thanks
> _______________________________________________
> PLUG discussion list: plug at plug.org.au
> http://www.plug.org.au/mailman/listinfo/plug
> Committee e-mail: committee at plug.linux.org.au
_______________________________________________
PLUG discussion list: plug at plug.org.au
http://www.plug.org.au/mailman/listinfo/plug
Committee e-mail: committee at plug.linux.org.au
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.plug.org.au/pipermail/plug/attachments/20060401/9fd8fcc8/attachment.htm>