[asterisk-users] Asterisk behind a PIX firewall?

[Matt]

On Nov 27, 2007 11:02 AM, C F <shmaltz at gmail.com> wrote:

> On Nov 27, 2007 9:08 AM, Steve Totaro <stotaro at totarotechnologies.com>
> wrote:
> >
> > Matt wrote:
> > >
> > >
> > >
> > >     Just checking....  NAT=yes, canreinvite=no ?
> > >
> > >
> > > Correct, I have those settings set for this phone.  Asterisk has been
> > > reloaded even restarted.
> > >
> > >
> >
> > Is this a dual NAT situation?  NAT on the phone side and NAT at the PIX?
> >   If so, I fear it will never work, you might get one way audio though.
> >
>
> I disagree with you, setting in sip.conf:
> externhost=ddnsname;or set the next setting
> externip=x.x.x.x;external ip
> externrefresh=10;for dns
> localnet=192.168.0.0/255.255.0.0
> should take care of this, I have never had a problem with dual nat
> like this, using Aastra, Cisco, Polycom and linksys.
>

LO!  This worked!  All it needed was an externip entry!
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