[Users] x-lite and nat_uac_test(16)

[raviprakash sunkara]

Hi Alex

Am using  fix_nated_sdp("11")
and fix_nayed_uac(16");

its workking fine ......
in All cases of NAT sections

On 5/18/07, Alexander Bergolth <leo at strike.wu-wien.ac.at> wrote:
>
> Hi!
>
> I've noticed that (at least on my boxes) x-lite uses a different
> source-port for the sip-connection than the one that is announced in the
> Via-header. (See the example below.)
>
> This behavior results in nat_uac_test(16) always reporting that the
> client is behind a NAT.
>
> Can anyone confirm this behavior? Is it a bug in X-Lite or is there any
> good reason for it?
>
> Cheers,
> --leo
>
> -------------------- 8< --------------------
> No.     Time        Source                Destination           Protocol
> Info
>       4 0.000808    137.208.90.164        137.208.89.45         SIP
> Request: REGISTER sip:wu-wien.ac.at
>
> Frame 4 (640 bytes on wire, 640 bytes captured)
> Ethernet II, Src: DellEsgP_85:83:ea (00:0b:db:85:83:ea), Dst:
> Cisco_f3:2e:80 (00:0d:29:f3:2e:80)
> Internet Protocol, Src: 137.208.90.164 (137.208.90.164), Dst:
> 137.208.89.45 (137.208.89.45)
> Transmission Control Protocol, Src Port: 1831 (1831), Dst Port: 5060
> (5060), Seq: 1, Ack: 1, Len: 586
>     Source port: 1831 (1831)
>     Destination port: 5060 (5060)
>     Sequence number: 1    (relative sequence number)
>     [Next sequence number: 587    (relative sequence number)]
>     Acknowledgement number: 1    (relative ack number)
>     Header length: 20 bytes
>     Flags: 0x18 (PSH, ACK)
>     Window size: 1028096 (scaled)
>     Checksum: 0x491e [correct]
> Session Initiation Protocol
>     Request-Line: REGISTER sip:wu-wien.ac.at SIP/2.0
>     Message Header
>         Via: SIP/2.0/TCP
> 137.208.90.164:1676
> ;branch=z9hG4bK-d87543-bd24cf102007467f-1--d87543-;rport
>         Max-Forwards: 70
>         Contact:
> <sip:30001 at 137.208.90.164:1676;rinstance=7ce462f932219953;transport=TCP>
>         To: "Alexander Bergolth"<sip:30001 at wu-wien.ac.at>
>         From: "Alexander Bergolth"<sip:30001 at wu-wien.ac.at>;tag=b904b134
>         Call-ID: N2VjNGQxYzZlOWNiYWU5OTMwNzQ4OTZkMWU3NmRkYTE.
>         CSeq: 1 REGISTER
>         Expires: 3600
>         Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY,
> MESSAGE, SUBSCRIBE, INFO
>         User-Agent: X-Lite release 1006e stamp 34025
>         Content-Length: 0
> -------------------- 8< --------------------
>
> --
> e-mail   ::: Alexander.Bergolth (at) wu-wien.ac.at
> fax      ::: +43-1-31336-906050
> location ::: Computer Center | Vienna University of Economics | Austria
>
>
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>



-- 
Thanks &Regards
Ravi Prakash Sunkara
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