[Asterisk-Users] Re: Remote SIP Connections

[dbruce]

You have forgotten that the WRT54G is a NAT router.

The phones that are trying to connect to your server are also very likely to
be behind a NAT router. This make it almost impossible to tell what ports
are actually going to be used for inbound or outbound traffic... many NAT
routers do not attach any significance to SIP protocol messages. Add to that
the fact that many IP phones do not use the same port range for RTP that
asterisk uses by default, and you have a VERY difficult time determining
which port ranges need to be forwarded.

Your easiest solution is to remove the forwarding rules, give your asterisk
server a static IP address on your local network, and configure that IP
address as the DMZ. All unsolicited requests to the router are sent to the
IP address configured as the DMZ.

The DMZ settings are found under the "Applications & Gaming" tab on the
WRT54G.

You could also play with port triggering settings, but that is also a very
dificult process.

Regards,
Derek Bruce


----- Original Message -----
From: "Blake Krone" <blakekrone at gmail.com>
To: <asterisk-users at lists.digium.com>
Sent: Tuesday, July 05, 2005 7:10 PM
Subject: [Asterisk-Users] Re: Remote SIP Connections


I have gotten them to be able to connect but I am unable to hear the
other person and they can't hear me either.

What else am I missing?

On 7/5/05, Blake Krone <blakekrone at gmail.com> wrote:
> Hello all, I have my * server setup behind a Linksys WRT54G on
> Adelphia cable. I have forwarded 5060,10000-10020, and another port
> set can't remember off the top of my head but I can't seem to connect
> to the * server from any locations that are direct connects to the
> Internet. Am I missing a portset for forwarding?
>
> If I use the name service (voip.*****.com) from my home connection on
> the same LAN as the * server it will connect fine.
>
> Any ideas?
>
> TIA!
> -blake
>
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