[cisco-voip] IP-Phones NAT problem

[Mounir Mohamed]

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
-------------- next part --------------
An HTML attachment was scrubbed...
URL: https://puck.nether.net/pipermail/cisco-voip/attachments/20060406/eb999314/attachment.html