On 4/14/07, Amanda Mattiuz <amattiuz@gmail.com> wrote:

Hello all!!

Here it goes my SDP capture....

From the server I got:

SIP/2.0 200 OK
Via: SIP/2.0/UDP 127.0.0.1:3000;received=89.217.49.178 ;rport=3000;branch=z9hG4bK63518
Record-Route: <sip:195.176.182.183;lr=on;ftag=z9hG4bK07895001>
To: < sip:amanda@195.176.182.183 >;tag=1667a366aa3b4597
From: <sip:ivano@195.176.182.183>;tag=z9hG4bK07895001
Call-ID: 491020407821@127.0.0.1
CSeq: 1 INVITE
Contact: <sip:user@84.72.112.122:3000;nat=yes>
Server: mjsip stack 1.6
Content-Length: 177
Content-Type: application/sdp

v=0
o= sip:amanda@195.176.182.183 0 0 IN IP4 84.72.112.122
s=Session SIP/SDP
c=IN IP4 195.176.182.183
t=0 0
m=audio 35036 RTP/AVP 0
a=rtpmap:0 PCMU/8000
a=nortpproxy:yes

Is there anything unusual here??

On 4/5/07, raviprakash sunkara <sunkara.raviprakash.feb14@gmail.com > wrote:
HI
Use ethereal, or ngrep
if not install Download it and install on the Clients side and server side ( for Ethereal) and Ngrep in Server,
So that U can see the SDP section in ngrep and in Ethereal u can both rtp packets and SDP messages,

I seen the urs Debugs of the OpenSER it doesn't show the properly.

On 4/4/07, Amanda Mattiuz <amattiuz@gmail.com > wrote:
Hi!

I have the tcpdump output (from server) and the log from openSER in debug mode here with me... how can I capture SDP specifically? If u teach me I can do it and post it.... in fact I'd love to learn it heheheh

Thanks again!!

Amanda

On 4/4/07, Bogdan-Andrei Iancu < bogdan@voice-system.ro> wrote:
Hi Amanda,

could you post the RTP capture?

regards,
bogdan

Amanda Mattiuz wrote:
> Thanks for your reply...
>
> I don't understand exactly "lso note that first you need incoming RTP
> (from client to RTPproxy) in order to be able to send RTP behind the
> nat." ...
>
> Checking the traffic with ethereal in the server (rtproxy and openser
> are running on the same machine for the moment), I can see that bothe
> clients are sending packets, but then when rtpproxy routes them to the
> onthr client, I see "ICMP unreacheable host" for both sides.....
>
> I will check the client more carefully to be sure it is synmetric...
>
> Thanks again!!!!
>
> On 4/3/07, *Bogdan-Andrei Iancu* < bogdan@voice-system.ro
> <mailto: bogdan@voice-system.ro>> wrote:
>
>     Hi Amanda,
>
>     be sure the devices are symmetric from RTP point of view -
>     otherwise the
>     traversal will not work. Also note that first you need incoming RTP
>     (from client to RTPproxy) in order to be able to send RTP behind
>     the nat.
>
>     regards,
>     bogdan
>
>     Amanda Mattiuz wrote:
>     > Hello!
>     >
>     >
>     > I'm using rtpproxy to handle NAT, but right now I have problems of
>     > unreacheable host... I believe client's firewalls are blocking UDP
>     > traffic coming from the proxy ... I tried to change port range and
>     > nothing seem to make it  work...
>     >
>     > I was wondering if any of you kows something that may fix it....
>     >
>     > Thanks
>     >
>     > --
>     > -------------------------------------------------------------------
>     > Amanda Remes Mattiuz
>     > amattiuz@gmail.com <mailto:amattiuz@gmail.com>
>     <mailto: amattiuz@gmail.com <mailto: amattiuz@gmail.com>>
>     >
>     ------------------------------------------------------------------------
>
>     >
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>
>
>
> --
> -------------------------------------------------------------------
> Amanda Remes Mattiuz
> amattiuz@gmail.com <mailto: amattiuz@gmail.com>

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Amanda Remes Mattiuz
amattiuz@gmail.com

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Thanks and Regards
Ravi Prakash Sunkara
ravi.sunkara@hyperion-tech.com
M:+91 9985077535
www.hyperion-tech.com
Client and Parent company :- www.august-networks.com

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Amanda Remes Mattiuz
amattiuz@gmail.com