[asterisk-users] Maybe a NAT problem

[Facundo Barrera - GMail]

2007/1/4, Carlos Rojas <crt.rojas at gmail.com>:
> 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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> >
> > 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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>

Ok, what about my dynamic IP address when setting NAT??

Thanks.

FB
-- 
_________________________
   Facundo Agustin Barrera
  --------------------------------------
     www.openlabs.com.ar
"Let the penguins do the work"
---------------------------------------------
   Buenos Aires - Argentina
_________________________