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Today's Topics:
1. Re: [OT] NGREP showing \r and \n symbols (Andreas Heise)
2. Re: [OT] NGREP showing \r and \n symbols (I?aki Baz Castillo)
3. Re: Problem with audio when either or both UAs are not behind
NAT (I?aki Baz Castillo)
4. Re: Authentication problem in openSER (Henning Westerholt)
----------------------------------------------------------------------
Message: 1
Date: Thu, 22 May 2008 23:55:56 +0200
From: Andreas Heise <aheise@gmx.de>
Subject: Re: [OpenSER-Users] [OT] NGREP showing \r and \n symbols
To: Ovidiu Sas <osas@voipembedded.com>
Cc: users@lists.openser.org
Message-ID: <4835EBEC.7070800@gmx.de>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Hi I?aki,
I had the same issue with a Nortel CS1k switch, the easiest way to check this
problem is to use the Wireshark feature "Display raw text for SIP message"
which can be enabled under preferences / protocols / SIP
regards,
Andreas
Ovidiu Sas schrieb:
> Hello Inaki,
>
> Perform a raw capture using tcpdump and open the file with wireshark.
> Check the lower window in wireshark where you have the message
> displayed in hex format.
> There you will be able to spot '\n' and '\r'. To find the hex codes,
> perform a 'man ascii' on your linux box.
>
>
> Regards,
> Ovidiu Sas
>
> On Tue, May 20, 2008 at 10:53 AM, I?aki Baz Castillo <ibc@in.ilimit.es> wrote:
>
>> El Tuesday 20 May 2008 16:37:03 Bogdan-Andrei Iancu escribi?:
>>
>>> Hi I?aki,
>>>
>>> have you tried the "-W byline" ? - it will format you the lines.
>>>
>> Hi Bogdan. Yes, in fact I use this option "-W byline", but this option just
>> splits the trace into lines (macthing "\n"). This is not enough for me since
>> \r is not showed.
>>
>> I need it since I send and receive traffic from a carrier using a painful
>> Nortel CS2K softswitch that separes SDP lines with \r instead of the
>> mandatory \r\n adn they are applying dirty and not working patches during
>> production state so I need a way to monitorize it.
>>
>> Thanks a lot.
>>
>>
>>
>> --
>> I?aki Baz Castillo
>> ibc@in.ilimit.es
>>
>> _______________________________________________
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>
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------------------------------
Message: 2
Date: Fri, 23 May 2008 09:31:31 +0200
From: I?aki Baz Castillo <ibc@in.ilimit.es>
Subject: Re: [OpenSER-Users] [OT] NGREP showing \r and \n symbols
To: users@lists.openser.org
Message-ID: <200805230931.31959.ibc@in.ilimit.es>
Content-Type: text/plain; charset="iso-8859-1"
El Thursday 22 May 2008 23:55:56 Andreas Heise escribi?:
> Hi I?aki,
>
> I had the same issue with a Nortel CS1k switch
It's nice to know that I'm not theonly sending/receiving traffic from a Nortel
CS[12]K. ;)
--
I?aki Baz Castillo
ibc@in.ilimit.es
------------------------------
Message: 3
Date: Fri, 23 May 2008 09:32:21 +0200
From: I?aki Baz Castillo <ibc@in.ilimit.es>
Subject: Re: [OpenSER-Users] Problem with audio when either or both
UAs are not behind NAT
To: users@lists.openser.org
Message-ID: <200805230932.21444.ibc@in.ilimit.es>
Content-Type: text/plain; charset="ISO-8859-1"
El Thursday 22 May 2008 18:54:53 Krunal Patel escribi?:
> Hi,
>
> I have registered an UA 12345 , which is public.
> In location table, I found NULL value for received.
> I dial any UA , irrespective to their NAT status.
> Call has been established but can't get audio both side.
> It does not use mediaproxy for audio signaling.
>
> How to resolve this problem?
Do a full sip flow capture and analyze trhe address and port of media in SDP
of INVITE and 200 OK.
--
I?aki Baz Castillo
ibc@in.ilimit.es
------------------------------
Message: 4
Date: Fri, 23 May 2008 10:57:56 +0200
From: Henning Westerholt <henning.westerholt@1und1.de>
Subject: Re: [OpenSER-Users] Authentication problem in openSER
To: users@lists.openser.org
Cc: Ahmed Huraimel <huraimel@gmail.com>
Message-ID: <200805231057.56974.henning.westerholt@1und1.de>
Content-Type: text/plain; charset="utf-8"
On Thursday 22 May 2008, Ahmed Huraimel wrote:
> i am investigating the authentication on openSER. I search for a proper
> explanations but unfortunately i did not find how it is exactly done so i
> did some experiments. i assumed that the response is generated as the
> following: note that i set the username and password with the same string
> "alali"
>
> Response = MD5( username + MD5(password) + realm + nonce)
> [..]
> could anyone tell me how exactly the authentication is done in openSER? is
> the response generated is like the one i assumed? what + means in the
> response? does is mean concatenation or exoring?
Hi Ahmed,
the authentification in OpenSER/ SIP is based on HTTP auth. You find a
detailed explanation for the construction of the response for example at:
http://en.wikipedia.org/wiki/Digest_access_authentication , some further
informations at: http://www.voip-info.org/wiki/view/SIP+Authentication
For the exact logic inside OpenSER just take a look at the auth module source
code, it should be not that hard to understand. ;-)
Cheers,
Henning
------------------------------
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End of Users Digest, Vol 36, Issue 48
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