Date: Wed, 27 Sep 2017 09:51:25 +1000 From: Graham Menhennitt <graham@menhennitt.com.au> To: freebsd-ipfw@freebsd.org Subject: Re: FreeBSD, IPFW and the SIP/VoIP NAT problem Message-ID: <76cb9b72-53ac-eadc-f921-dc01808a9aeb@menhennitt.com.au> In-Reply-To: <20170926143503.66f6532c@freyja.zeit4.iv.bundesimmobilien.de> References: <20170926143503.66f6532c@freyja.zeit4.iv.bundesimmobilien.de>
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On 26/09/2017 10:35 PM, O. Hartmann wrote: > Hello, > > trying to build a FreeBSD based router/PBX (Asterisk 13) appliance, I ran into > several problems. My questions might have a "noobish" character, so my apology, > my experiences with IPFW are not as thorough as they should be. > > ... > The FreeBSD system acting as a router is supposed to have a jail soon > containing the Asterisk 13 IP PBX (at the moment running on the main system). > To provide access to the VoIP infrastructure inside/behind the router/NAT > system, the in-kernel NAT facility of FreeBSD is forwarding the relevant > UPD/TCP ports for VoIP to its destination network, and here I have a problem to > solve. Does your VoIP provider allow IAX2 protocol as well as SIP? Many do. Then you can avoid the problem completely. Graham
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