[asterisk-users] SIP and Firewall

[Jaswinder Singh]

Here you go http://www.voip-info.org/wiki/view/Asterisk+firewall+rules  .
You can also set your rtp.conf properly and open very few rtp ports instead
of all 10000-20000 udp ports .

On 22/09/2007, Guenther Sohler <guenther.sohler at gmx.at> wrote:
>
> Hallo,
>
> I'd like to correctly set up my firewall in my system for udp and asterisk
>
> I have got a server, which has got one static ip adress to the internet.
> Asterisks is running on this server.
> It registers at sipgate.at and mujtelefon.com
> The Server also does nat to the my intranet, where my pc and my hardware
> sip
> phone sits. The Hardware sip phone registers to asterisk on my server
> from its intranet ip adress. Everything works fine.
>
> The question is just: How to code good stateful firewall rules with
> iptables
> and netfilter_sip ?
> What would be apropriate to my system ?
>
> rds
>
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