[asterisk-users] Asterisk behind a PIX firewall?

[C F]

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.


> I live OpenVPN bridges for double NAT situations, of course you could
> try IAX2 but I have seen too many sound quality issues surrounding IAX2
> so I try to stick with SIP, even if that means setting up VPNs.
>
> Thanks,
> Steve
>
> 888.777.1888
>
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