The phones could be on a subnet that has private IP addresses that are routable from the DMZ where the sipXecs server is (without NAT), but not routable from the Internet.
+----------+ | Internet | +----------+ | Firewall | +-DMZ-----+ | sipXecs | Public IP +---------+ | Router (NAT may or may not be enabled here) | +-Phone Subnet-+ | Phones | Private IP +--------------+ Mike Burden Lynk Systems, Inc e-mail: m...@lynk.com Phone: 616-532-4985 -----Original Message----- From: Todd Hodgen [mailto:thod...@verizon.net] Sent: Monday, December 07, 2009 4:35 PM To: Burden, Mike; sipx-users@list.sipfoundry.org Subject: RE: [sipx-users] How to set up a non-NAT'd sipXecs IP PBX withoutgiving public addresses to the phones If the Server is on a Public Address, and the phones are on NAT addresses, how would they get to server without going through a router to get onto the same network as the server? That is where your Nat will come in - traversing the router. Seems the Server would need to know they are NAT, as it will be NAT coming to the server. -----Original Message----- From: sipx-users-boun...@list.sipfoundry.org [mailto:sipx-users-boun...@list.sipfoundry.org] On Behalf Of Burden, Mike Sent: Monday, December 07, 2009 1:25 PM To: sipx-users@list.sipfoundry.org Subject: [sipx-users] How to set up a non-NAT'd sipXecs IP PBX without giving public addresses to the phones I asked this once before, but maybe not in precise terms... Given that sipXecs cannot be dual-homed, if the sipXecs server is given a public IP address, does it create issues to have the phones behind NAT? If so, then do the phones need non-NAT access to the ITSP, or just non-NAT access to the sipXecs server? Mike Burden Lynk Systems, Inc e-mail: m...@lynk.com Phone: 616-532-4985 _______________________________________________ sipx-users mailing list sipx-users@list.sipfoundry.org List Archive: http://list.sipfoundry.org/archive/sipx-users Unsubscribe: http://list.sipfoundry.org/mailman/listinfo/sipx-users sipXecs IP PBX -- http://www.sipfoundry.org/ _______________________________________________ sipx-users mailing list sipx-users@list.sipfoundry.org List Archive: http://list.sipfoundry.org/archive/sipx-users Unsubscribe: http://list.sipfoundry.org/mailman/listinfo/sipx-users sipXecs IP PBX -- http://www.sipfoundry.org/
