asterisk users - Jan 2006 - SIP, NAT and Firewalls

Hello,

I'm a bit new to SIP, and I've set up a SIP line with Asterisk and my
wholesale provider.  That worked, fine.  I ahd to open up the ports on my
router, forward them to the correct box, again fine.

Now, if I get one of my customers to connect his SIP phone to my Asterisk
box, and HE'S behind a NAT firewall, does he have to go through the same
process, or is it just the Asterisk box that needs to translate the SIP and
RTP port?

In other words: if my SIP phone is behind a Linksys router, do I need to
configure the Router for any reason?

Mike

you can redirect the ports of the router as well. Or you can configure
your SIP phone to use a STUN server. Please read in voip-info.org
about SIP NAT, there are good suggestions.

regards

On 1/20/06, Micha?l Gaudette <michael.gaudette@virtutel.ca>
wrote:
> Hello,
>
> I'm a bit new to SIP, and I've set up a SIP line with Asterisk and
my
> wholesale provider.  That worked, fine.  I ahd to open up the ports on my
> router, forward them to the correct box, again fine.
>
> Now, if I get one of my customers to connect his SIP phone to my Asterisk
> box, and HE'S behind a NAT firewall, does he have to go through the
same
> process, or is it just the Asterisk box that needs to translate the SIP and
> RTP port?
>
> In other words: if my SIP phone is behind a Linksys router, do I need to
> configure the Router for any reason?
>
> Mike
>
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