<HTML><BODY style="word-wrap: break-word; -khtml-nbsp-mode: space; -khtml-line-break: after-white-space; ">all voip protocols embed the L3 address in the signaling protocol. You will need a NAT device that supports a 'fixup' mechanism for those protocols.<DIV><BR class="khtml-block-placeholder"></DIV><DIV>I know the PIX does.</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>/Wes</DIV><DIV><BR><DIV><DIV>On Apr 6, 2006, at 8:21 AM, Mounir Mohamed wrote:</DIV><BR class="Apple-interchange-newline"><DIV>Dear All,</DIV> <DIV> </DIV> <DIV> </DIV> <DIV>I have 2 IP-phones connected to C2621 with the below configuration the problem that, the phones used <A href="http://10.0.0.25">10.0.0.25</A> and <A href="http://10.0.0.26">10.0.0.26</A> and both is NATED on the 2600 router, also both registered in international SIP server but thay can not make calls even between each other, But when i trying to using static NAT (Private--> Real IP) everything working fine but i can not deticate IP for each phone and now the problem due to NAT so anybody could help in that, HOw can i use NAT but in the same time the phones working because it's seems that the NAT port changes it the reason behind the problem </DIV> <DIV> </DIV> <DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">Seef-HQ#sh run</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">Building configuration...</FONT></DIV><P class="MsoNormal" style="MARGIN: 0in 0in 0pt"><FONT face="Times New Roman"> </FONT></P><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">Current configuration : 1596 bytes</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">!</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">version 12.3</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">service timestamps debug datetime msec</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">service timestamps log datetime msec</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">service password-encryption</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">!</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">hostname Seef-HQ</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">!</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">logging buffered 4096 debugging</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">enable secret 5 $1</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">!</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">ip subnet-zero</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">ip cef</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">!</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">!</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">ip name-server <A href="http://195.219.14.20">195.219.14.20</A></FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">ip name-server <A href="http://64.85.63.6">64.85.63.6</A></FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">!</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">!</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">!</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">voice rtp send-recv</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">!</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">voice service voip </FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>sip</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">!</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">voice class codec 1</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>codec preference 1 g711ulaw</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">!</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">!</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">!</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">!</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">!</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">!</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">!</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">no voice hpi capture buffer</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">no voice hpi capture destination </FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">!</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">!</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">!</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">!<SPAN style="mso-spacerun: yes"> </SPAN></FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">!<SPAN style="mso-spacerun: yes"> </SPAN></FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">!<SPAN style="mso-spacerun: yes"> </SPAN></FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">interface FastEthernet0/0</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>ip address 217.X.X.X <A href="http://255.255.255.240">255.255.255.240</A></FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>ip nat outside</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>duplex auto</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>speed auto</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">!<SPAN style="mso-spacerun: yes"> </SPAN></FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">interface FastEthernet0/1</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>ip address <A href="http://10.0.0.1">10.0.0.1</A> <A href="http://255.255.255.0">255.255.255.0</A></FONT> </DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>ip nat inside</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>duplex auto</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>speed auto</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">!<SPAN style="mso-spacerun: yes"> </SPAN></FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">ip nat pool LAN 217.X.X.X 217.X.X.X prefix-length 28</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">ip nat inside source list 10 pool LAN overload</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">ip nat inside source static tcp <A href="http://10.0.0.113">10.0.0.113</A> 80 interface FastEthernet0/0 9999</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">ip nat inside source static <A href="http://10.0.0.4">10.0.0.4</A> 217.X.X.Y</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">ip nat inside source static <A href="http://10.0.0.3">10.0.0.3</A> 217.X.X.Z</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">ip http server</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">ip classless</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">ip route <A href="http://0.0.0.0">0.0.0.0</A> <A href="http://0.0.0.0">0.0.0.0</A> 217.X.X.X</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">!<SPAN style="mso-spacerun: yes"> </SPAN></FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">!<SPAN style="mso-spacerun: yes"> </SPAN></FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">access-list 10 permit <A href="http://10.0.0.0">10.0.0.0</A> <A href="http://0.0.0.255">0.0.0.255</A></FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">!<SPAN style="mso-spacerun: yes"> </SPAN></FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">!<SPAN style="mso-spacerun: yes"> </SPAN></FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">!<SPAN style="mso-spacerun: yes"> </SPAN></FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">!<SPAN style="mso-spacerun: yes"> </SPAN></FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">!<SPAN style="mso-spacerun: yes"> </SPAN></FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">!<SPAN style="mso-spacerun: yes"> </SPAN></FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">dial-peer voice 1 voip</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>session protocol sipv2</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>session target ipv4:67.X.X.X</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>session transport udp</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">!<SPAN style="mso-spacerun: yes"> </SPAN></FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman">sip-ua<SPAN style="mso-spacerun: yes"> </SPAN></FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>nat symmetric role active</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>nat symmetric check-media-src</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>retry invite 2</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>retry response 2</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>retry bye 2</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>retry cancel 2</FONT></DIV><DIV style="margin-top: 0in; margin-right: 0in; margin-bottom: 0pt; margin-left: 0in; "><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>sip-server ipv4:67.X.X.X</FONT></DIV><BR clear="all"><BR>-- <BR>Best Reagrds,<BR>Mounir Mohamed </DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">_______________________________________________</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">cisco-voip mailing list</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><A href="mailto:cisco-voip@puck.nether.net">cisco-voip@puck.nether.net</A></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><A href="https://puck.nether.net/mailman/listinfo/cisco-voip">https://puck.nether.net/mailman/listinfo/cisco-voip</A></DIV> </DIV><BR></DIV></BODY></HTML>