[asterisk-users] Portech MV-374 does not register behind NAT

[bruce bruce]

Take out the router/firewall and connect directly to the net to test your
NAT problem theory.

On Thu, Apr 22, 2010 at 12:15 PM, Jonas Kellens <jonas.kellens at telenet.be>wrote:

>  Jared,
>
> thank you for your answer.
>
> As I said in my previous mail, I'm using a Zyxel NBG-419 router (which
> normally supports VoIP and QoS). Firewall is disabled on the Zyxel.
>
> The MV-374 only accepts IP-address, not a FQDN. Will give it another try
> though...
>
> The answer from Portech-support : "use STUN".
>
> Even if the NAT rewrites the IP-address/port combination, why is it a
> problem for the Portech and not for the IP-phones (Grandstream & Snom) ?
> They all communicate on port 5060 --> 5064 (several SIP-accounts)
>
>
> Jonas.
>
>
> Jared Smith wrote:
>
> On Thu, 2010-04-22 at 17:45 +0200, Jonas Kellens wrote:
>
>
>  All goes well when the gateway is connected directly to the
> internet... It's when it is behind NAT the 401 is sent from
> Asterisk...
>
>
>  Is the device registering to an IP address, or do a DNS name?  What type
> of NAT firewall are you using?
>
> This reminds me of a problem I had years ago with a Cisco PIX firewall,
> where it would rewrite IP addresses in the SIP Request URI, causing the
> authentication to fail.  One solution was to have it register to a
> fully-qualified domain name instead of an IP address, so that the
> Request URI wouldn't get overwritten.
>
> It's certainly worth a shot...
>
> --
> Jared Smith
> Digium, Inc.
>
>
>
>
>
> --
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