[asterisk-users] sip forward behind a nat

[nik600]

On 11/12/06, nik600 <nik600 at gmail.com> wrote:
> On 11/12/06, Vicky <vicky.r at gmail.com> wrote:
> > Yep make the server with dynamic ip register to server with static ip ( sip
> > or iax both will do but in sip keep nat=yes while making extension )
> >
> the problem is that the server with dynamic ip can't register on the
> other server!
>
> This is the situation:
>
>
> Server with SIP application (public_address)
> |
> |
> - - - Internet
> |
> |
> Firewall (NAT)
> |
> |
> Server Asterisk (private ip:192.168.100.249/public ip:public_address_2)
> |
> Analogic Board
> |
> Telecom
>
> I want to make a call from Server Asterisk to the server with SIP Application.
> The SIP Application can't register to Server Asterisk (because the
> application can't do it, i know, it isn't a good thing....but this is
> the application)
> When The SIP Application receives a SIP call it responds (because a
> dummy SIP user is autoregistered on hisself)
>
> So i only have to make a call to SIP/user at public_address
>
> I've also tried to setup an asterisk server on my laptop, and make a call to
> SIP/user at public_address from the public_address network. It works!
>
> I only have to setup the Asterisk server in production to make a SIP
> call throw the NAT but without any SIP user registered on it.
>
> Can i do that?
>
> Many thanks to all
>
maybe you need some other information?