[asterisk-users] ast 1.2.x - cisco 7970 behind nat to external asterisk with no nat

[Matt Gibson]

Hi All,

As the subject describes, has anyone gotten this to work? I am running
an asterisk 1.2.16 server, and am trying to register my cisco 7970
remotely to it, but it just won't go.

I am running 1.4.2 internally and the phone registers fine to it. I'm
using the latest firmware (i think) - 8.2.1S

On the server in question I have tried the following for the sip declaration:

qualify=never
nat=no (yes)
defaultip=(natip)(externalip)
md5secret=<md5pass>
or
secret=<secret>

Nothing seems to work, and I continually get "sip 401 unauthorized"
messages on the console when the phone tries to register.

I've spent a number of hours on this googling and searching for anyone
working with 1.2 and 7970's, but I can't find any information. Any
help would be much appreciated.

Scenario:

cisco 7970 -> switch -> pfsense/soekris/nat -> cable modem -> remote pbx

Local firewall has port forwarding on for 5060 tcp/udp to my internal
* box, and also for UDP 10000-30000 port forwarded to local * box as
well. Is there anything else I can try?

Thanks,
Matt