[asterisk-users] SIP provider and NAT

[Steve Totaro]

Add nat=yes for your provider [proxy01.sipphone.com] should do the trick.
Qualify=60 is good for keeping firewall ports open.

You could supplement that with externip= in the [general] section but it is
probably not needed.

-- 
Thanks,
Steve Totaro
+18887771888 (Toll Free)
+12409381212 (Cell)
+12024369784 (Skype)

On Wed, Nov 12, 2008 at 4:13 PM, Alex Balashov <abalashov at evaristesys.com>wrote:

> Investigate the externip= option for your SIP peers to the provider.
>
> Jim Dickenson wrote:
>
> > I have an Asterisk server, running 1.6.0, on my home network. It has an
> > IP address of 192.168.0.201. The server is behind my Linksys router that
> > does NAT for my home devices. I have a softphone on my Mac that is on
> > the same NATed network as the Asterisk server. It has an IP address of
> > 192.168.0.1. I have tried this with a Grandstream phone with the same
> > results.
> >
> > The Asterisk server registers with a SIP provider and seems to maintain
> > a registration.
> >
> > When I try to dial out from the soft phone or the Grandstream via the
> > SIP provider I get a "Bad Request" response from the provider. I am
> > guessing that many of the packets have my internal address and need my
> > public address.
> >
> > Is there some way to resolve this?
> >
> > Here is the relevant entry in extensions.conf:
> >
> > exten => _88X.,1,Dial(SIP/${EXTEN:2}@proxy01.sipphone.com<EXTEN%3A2%7D at proxy01.sipphone.com>
> ,20,r)
> > exten => _88X.,n,Hangup()
> >
> >
> > Here are my entries in sip.conf:
> >
> > [proxy01.sipphone.com]
> > type=peer
> > context=mine
> > disallow=all
> > allow=ulaw
> > dtmfmode=rfc2833
> > host=proxy01.sipphone.com
> > fromdomain=proxy01.sipphone.com
> > insecure=port,invite
> > qualify=yes
> > fromuser=myid
> > authuser=myid
> > defaultuser=myid
> > secret=mypwd
> > canreinvite=no
> >
> > [GXP280]
> > type=friend
> > context=mine
> > nat=no
> > canreinvite=no
> > host=dynamic
> > secret=mypwd
> > callerid=GXP280 <109>
> > mailbox=109 at ourvm
> > busylevel=2
> >
> > [dickenson]
> > type=friend
> > context=empl
> > nat=no
> > canreinvite=no
> > host=dynamic
> > secret=mypwd
> > callerid=Jim Dickenson <108>
> > mailbox=108 at ourvm
> >
> > Looking at the SIP debug transaction I do not see my public IP address
> > at all. There must be some setting about the server having at NATed
> address.
> >
> > --
> > Jim Dickenson
> > mailto:dickenson at cfmc.com
> >
> > CfMC
> > http://www.cfmc.com/
> >
> >
> > ------------------------------------------------------------------------
> >
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>
> --
> Alex Balashov
> Evariste Systems
> Web    : http://www.evaristesys.com/
> Tel    : (+1) (678) 954-0670
> Direct : (+1) (678) 954-0671
> Mobile : (+1) (706) 338-8599
>
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