On 31/07/13 15:32, Tony Mountifield wrote:
Most of my experience until recently has been in Asterisk 1.2, and I am
just starting to make use of Asterisk 11 for new systems.
I have a question about using SIP on a multi-homed machine.
I have a customer who wants an Asterisk box with two network interfaces:
one on the public Internet (no NAT), and one on a private LAN. The box
will not do any IP forwarding between interfaces. They want to connect
to a SIP trunk from an ITSP via the public interface, and to have SIP
phones on their LAN registered via the private interface.
I haven't tried such a setup before, so before creating a test system,
I wondered if anyone here has made such a setup, and whether there are
any issues with getting SDP contents and media routing correct?
Cheers
Tony
I normally just ensure localnet= and externip= is set correctly. I
normally also have 'directmedia=no' defined in sip.conf so that asterisk
is performing store and forward for all the rtp traffic. That does mean
rtp traffic for internal calls is going via asterisk where it could be
direct between the phones but the amount of traffic doing this is
normally pretty trivial so it doesnt matter in most cases.
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