Re: Cisco 7970 NAT

Author	All Replies
Edrick I aspire to tell the story of a lifetime Premium join:2004-09-11 Woburn, MA	reply to cramer Re: Cisco 7970 NAT Ideally I'd setup a VPN and that'll happen eventually as I need one between home and the office. But for now I'm trying to get this guy working, I know SIP works (Software Phone and I have a dumb phone 7912 that works), but the dang 7970 is being a pain.
	to forum · permalink · 2012-10-10 21:47:52 ·

cramer join:2007-04-10 Raleigh, NC kudos:7	Is the 7912 running SIP or SCCP? It sounds like the issue is the two NATs... 7970 internal to internet, and internet to internal call manager. I've seen this before and quickly removed all NAT from the equation -- which includes telling the phones/pbx to stop trying to be "smart": don't fuck with any addresses. Depending on your setup, you may need to do that as well. Remote SIP phone behind a residential NAT router connecting to an internet visible pbx, if the routers doing NAT are SIP aware, then neither the phone nor pbx need to touch anything -- alternately, tell the natters to stop screwing with SIP. (not always possible)
	to forum · permalink · 2012-10-10 22:14:08 ·
Edrick I aspire to tell the story of a lifetime Premium join:2004-09-11 Woburn, MA	The 7912 is running the SIP Firmware. I should mention this is a Asterisk Trixbox Setup.
	to forum · permalink · 2012-10-10 22:58:45 ·
Edrick I aspire to tell the story of a lifetime Premium join:2004-09-11 Woburn, MA	Check Check
	to forum · permalink · 2012-10-12 16:41:08 ·
unixwolf join:2007-05-04 Flower Mound, TX	reply to Edrick You will never get this to work. NAT is broken on these phones...
	to forum · permalink · 2012-10-16 17:30:03 ·
Edrick I aspire to tell the story of a lifetime Premium join:2004-09-11 Woburn, MA	said by unixwolf: You will never get this to work. NAT is broken on these phones... Guess I best throw it into the technology grinder damn useless phone. But in reality I'll probably just buy a VPN and create a site to site VPN. -- Edrick Smith Independent Film & Broadcast Producer »edricksmith.com
	to forum · permalink · 2012-10-16 21:21:37 ·
st1nga join:2012-11-18 united kingd	I have 7940 that works fine behind NAT. Have not tried my 7970. NAT works fine for me and others.
	to forum · permalink · 2012-11-18 05:46:59 ·
unixwolf join:2007-05-04 Flower Mound, TX	said by st1nga: I have 7940 that works fine behind NAT. Have not tried my 7970. NAT works fine for me and others. This is a dumb post. In my post I said that NAT is broken for "these phones" implying 797x series.. All others seem to be unaffected by this bug.
	to forum · permalink · 2013-01-17 14:11:25 ·

Equipment Support > Hardware By Brand > Cisco > Cisco 7970 NAT