[asterisk-users] Maybe a NAT problem

[Carlos Rojas]

Hello

Do no forget the rtp ports  10000 to 20000

Regards

On 1/4/07, Facundo Barrera - GMail <facubarrera at gmail.com> wrote:
>
> 007/1/4, Bob Chiodini <bchiodini at gmail.com>:
> > Facundo Barrera - GMail wrote:
> > > Hi list:
> > >         This is my first post and first off all i want to wish a good
> > > year for everone! well my problem is; i already installed asterisk on
> > > a server and created a channel and a couple of extensions, all seems
> > > to work just fine, y can make calls and receive them, i'm using the
> > > x-lite client that also works very good, this is the topology of the
> > > net
> > >
> > >
> > > (LAN - some clients) --------|| Internal interface-private IP(server
> > > Running Asterisk)external interface-public IP ||---------INTERNET
> > >
> > > Well i configure * to bind all address, so it's service listen on the
> > > two interfaces, when i make a call from a client inside my LAN to a
> > > client on the INTERNET, the person receives the call and listen me
> > > perfectly, but i can't listen any audio from him, i read about the
> > > issue and it seems to be a problem of nating, keep in mind that this
> > > server is masquerading all my LAN ips, so i can share my internet
> > > conenction, so when i receive a call form the outside world in fact
> > > x-lite shows me that the call originate from my inside interface IP of
> > > the server, but this is the strange thing the packets that originate
> > > the call from the outside world arrive just fine but when i answer the
> > > call i can't hear any audio at all.
> > >
> > > Any ideas how to solute this? hope not receive too much flames of this
> > > common issue
> > >
> > > Thanks a lot
> > >
> > >
> > In your SIP configs specify that the extensions are natted:
> >
> > nat=yes
> > externhost=<External IP address>
> > localnet=<Local IP subnet>/<local subnet mask>
> >
> > These are global settings.
> >
> > It might also be helpful to set canreinvite=no for each extension.
> >
> > There are probably firewall tricks you can do as well, but its early and
> > I'm a couple cups of coffee shy.
> >
> > Bob...
> > _______________________________________________
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> >
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> >
>
> Thanks for the answer, will try that, but keep in mind that my server
> don't have an static public address, i use a dynamic DNS to resolve my
> sip domain.
>
> Thanks a lot
>
> --
> _________________________
>    Facundo Agustin Barrera
>   --------------------------------------
>      www.openlabs.com.ar
> "Let the penguins do the work"
> ---------------------------------------------
>    Buenos Aires - Argentina
> _________________________
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