[Asterisk-Users] REMOVE

[cisb]

----- Original Message -----
From: "Simon J Mudd" <sjmudd at pobox.com>
To: <asterisk-users at lists.digium.com>
Sent: Thursday, June 26, 2003 9:47 AM
Subject: Re: [Asterisk-Users] Asterisk, IAX and NAT issue


> dtoma at fx.ro ("Dan") writes:
>
> [snip]
> > Now, on the other PBX I have the following in extensions.conf
> >
> > exten => _1XX,1,Dial(IAX/pspbx at n.n.n.n/${EXTEN})
> > exten => _1XX,2,Hangup
> > exten => _1XX,102,Hangup
> >
> > where n.n.n.n is the external IP address of the NAT router.
> > pspbx is the IAX user defined on the PBX behind the router, in iax.conf
file
> > like that:
> >
> > [pspbx]
> > type=user
> > username=pspbx
> > auth=plaintext
> > permit=0.0.0.0/0.0.0.0
> > host=dynamic
> > context=fullaccess
> > ;allow=all
> >
> > When I try to call extension 103, I get on the local PBX console (the
one
> > connected directly to the internet):
> >
> >     -- Executing Dial("SIP/351-d7ca", "IAX/pspbx at n.n.n.n/103") in new
stack
> >     -- Calling using options
> >
'exten=103;callerid="MyOffice"<351>;language=en;username=pspbx;formats=2;cap
> > ability=65283;version=1;adsicpe=2'
> >     -- Called pspbx at n.n.n.n/103
> >   == No one is available to answer at this time
> >     -- Hungup 'IAX[n.n.n.n:5036]/46'
> >     -- Executing Hangup("SIP/351-d7ca", "") in new stack
> >   == Spawn extension (fullaccess, 103, 2) exited non-zero on
'SIP/351-d7ca'
> >
> > and a busy tone.
> > Nothing one the console of the other PBX.
> >
> > The PBX behind the NAT is in DMZ (so completely exposed to the
internet).
> > Making a VPN connection between the two PBX (using PPTP) it works in
both
> > direction, so this is only a NAT related issue.
>
> Is your firewall redirecting incoming connections on n.n.n.n:5036 to
> the Internal Asterisk instance?  If you don't see any messages on the
> inside Asterisk box it's unlikely.
>
> The best thing to do is probably do a tcpdump -n -i eth0 host n.n.n.n
> and host x.y.z.u (or similar) and try and diagnose what is actually
> being sent over the wire.
>
> Simon
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