[asterisk-users] 7960 Won't Register Yet Multiple Attempts?

[Darryl Dunkin]

I've been struggling to get a stable NAT config on these forever :)

Be sure the Netgear doesn't have a stateful firewall enabled (I believe
'SPI' is what they label the checkbox). These cheap boxes tend have flat
5 minute timeouts on UDP port translations and those kill the SIP port
forward. The phone keeps sending new registration requests as it is not
receiving the reply back through the NAT box. Not even setting
qualify=yes will fix these sometimes (this should keep the port forward
active and keep most NAT devices from timing out).

With the Cisco, you can also telnet to the phone and force it to
manually register on demand (ex: 'register 1 1') instead of rebooting,
but usually useless once the NAT device flakes out.

-----Original Message-----
From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of
robert.norton at sophmedia.com
Sent: Thursday, December 06, 2007 21:14
To: asterisk-users at lists.digium.com
Subject: [asterisk-users] 7960 Won't Register Yet Multiple Attempts?

Hi List,
I've got a 7960 that's behind NAT (nat_enabled: 1 and
nat_received_processing: 1) and for whatever reason doesn't seem to
register, or at least hold a registration. If both the phone and the
router (netgear) are rebooted, the phone will register, take a few
incoming/outgoing calls no problems, then a few hours later, it drops
the
registration and never re-registers. If the phone itself is rebooted, I
see a mess of registration attempts via SIP channels:
7X.183.246.XXX   (None)      000e8XXX-5d  00101/00220  unkn  No
Rx:
REGISTER
7X.183.246.XXX   (None)      000e8XXX-5d  00101/00220  unkn  No
Rx:
REGISTER
7X.183.246.XXX   (None)      000e8XXX-5d  00101/00220  unkn  No
Rx:
REGISTER
7X.183.246.XXX   (None)      000e8XXX-5d  00101/00220  unkn  No
Rx:
REGISTER
7X.183.246.XXX   (None)      000e8XXX-5d  00101/00220  unkn  No
Rx:
REGISTER
7X.183.246.XXX   (None)      000e8XXX-5d  00101/00220  unkn  No
Rx:
REGISTER

Is there something that I'm missing. Short of replacing the customers
router (which I have admin access to) is there anything else I should
try?
Any sort of packet filtering is disabling, nat is enabled in the SIP
config, and port forwarding was also setup to forward 5060-5070 TCP and
10000+ UDP to the phone to no avail.

Note that if the phone is plugged directly into the customer's modem
(thus
removing the router out of the picture) the phone works perfectly.

Thanks - Any input is appreciated

-Robert Norton

_______________________________________________
--Bandwidth and Colocation Provided by http://www.api-digital.com--

asterisk-users mailing list
To UNSUBSCRIBE or update options visit:
   http://lists.digium.com/mailman/listinfo/asterisk-users