[cisco-voip] IP-Phones NAT problem

[ash AD]

Have you tried to statically NAT your SIP ports to ensure call setup hits the right ports? Hopefully these NAT links will help. Good luck.
   
  -Peter
   
  http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ftnatsip.htm
  http://www.cisco.com/en/US/customer/products/sw/iosswrel/ps5187/products_command_reference_chapter09186a008017d163.html#wp1079462

"Voll, Scott" <Scott.Voll at wesd.org> wrote:
      fixup is a command on the pix firewall that works on a protocol to make it work correctly.
   
  scott

  
  
---------------------------------
  From: cisco-voip-bounces at puck.nether.net on behalf of Mounir Mohamed
Sent: Thu 4/6/2006 10:18 AM
To: Wes Sisk
Cc: cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] IP-Phones NAT problem


  ?   Dear Wes,
   
  Could you clarify more What is the FIXUP
   
  Bet Reagrds,
  Mounir Mohamed

 
  On 4/6/06, Wes Sisk<wsisk at cisco.com> wrote:     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.   
 
  I know the PIX does.
  
 
  /Wes
  
  
    On Apr 6, 2006, at 8:21 AM, Mounir Mohamed wrote:

  Dear All,
   
   
  I have 2 IP-phones connected to C2621 with the below configuration the problem that, the phones used 10.0.0.25 and 10.0.0.26 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 
   
    Seef-HQ#sh run
  Building configuration...
   
  Current configuration : 1596 bytes
  !
  version 12.3
  service timestamps debug datetime msec
  service timestamps log datetime msec
  service password-encryption
  !
  hostname Seef-HQ
  !
  logging buffered 4096 debugging
  enable secret 5 $1
  !
  ip subnet-zero
  ip cef
  !
  !
  ip name-server 195.219.14.20
  ip name-server 64.85.63.6
  !
  !
  !
  voice rtp send-recv
  !
  voice service voip 
   sip
  !
  voice class codec 1
   codec preference 1 g711ulaw
  !
  !
  !
  !
  !
  !
  !
  no voice hpi capture buffer
  no voice hpi capture destination 
  !
  !
  !
  !         
  !         
  !         
  interface FastEthernet0/0
   ip address 217.X.X.X 255.255.255.240 
   ip nat outside
   duplex auto
   speed auto
  !         
  interface FastEthernet0/1
   ip address 10.0.0.1 255.255.255.0 
   ip nat inside
   duplex auto
   speed auto
  !         
  ip nat pool LAN 217.X.X.X 217.X.X.X prefix-length 28
  ip nat inside source list 10 pool LAN overload
  ip nat inside source static tcp 10.0.0.113 80 interface FastEthernet0/0 9999 
  ip nat inside source static 10.0.0.4 217.X.X.Y
  ip nat inside source static 10.0.0.3 217.X.X.Z
  ip http server
  ip classless
  ip route 0.0.0.0 0.0.0.0 217.X.X.X
  !         
  !         
  access-list 10 permit 10.0.0.0 0.0.0.255
  !         
  !         
  !         
  !         
  !         
  !         
  dial-peer voice 1 voip
   session protocol sipv2
   session target ipv4:67.X.X.X
   session transport udp
  !         
  sip-ua    
   nat symmetric role active
   nat symmetric check-media-src
   retry invite 2
   retry response 2
   retry bye 2
   retry cancel 2
   sip-server ipv4:67.X.X.X


-- 
Best Reagrds,
Mounir Mohamed 

    _______________________________________________
  cisco-voip mailing list
  cisco-voip at puck.nether.net
  https://puck.nether.net/mailman/listinfo/cisco-voip


 





-- 
Best Reagrds,
Mounir Mohamed 
_______________________________________________
cisco-voip mailing list
cisco-voip at puck.nether.net
https://puck.nether.net/mailman/listinfo/cisco-voip


		
---------------------------------
Yahoo! Messenger with Voice. Make PC-to-Phone Calls to the US (and 30+ countries) for 2¢/min or less.
		
---------------------------------
New Yahoo! Messenger with Voice. Call regular phones from your PC and save big.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: https://puck.nether.net/pipermail/cisco-voip/attachments/20060407/21233057/attachment.html