Wireshark-dev: Re: [Wireshark-dev] FW: ANSI MAP / TCAP dissector hooks

From: "Anders Broman" <a.broman@xxxxxxxxx>
Date: Fri, 18 Aug 2006 18:44:35 +0200
Hi,
As far as I know the only change was to use range rather than a single
ssn value in the preferences of ANSI MAP, probably you got owerlaping ssn
definitions in your preferences ( CAMEL ,GSM MAP, RANAP ... ) what does
it say at the ssn entry in the SCCP part of the dissection?

Brg
Anders

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[mailto:wireshark-dev-bounces@xxxxxxxxxxxxx] För Michael Lum
Skickat: den 18 augusti 2006 03:40
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Ämne: [Wireshark-dev] FW: ANSI MAP / TCAP dissector hooks

 


--
Michael Lum                  Principal Software Engineer
4600 Jacombs Road            +1.604.276.0055
Richmond, B.C.
Canada V6V 3B1
UTStarcom Canada, Inc.
CDMA Division



-----Original Message-----
From: Michael Lum [mailto:Michael.Lum@xxxxxxxxxx] 
Sent: August 9, 2006 12:18 PM
To: 'wireshark-dev@xxxxxxxxxxxxx'
Subject: ANSI MAP / TCAP dissector hooks

Hello,

why was the way ANSI MAP hooks into TCAP changed?

I believe there is a problem with it.

I have attached a capture file with the following:

SCTP
M2UA
MTP3 (ITU)
SCCP
TCAP (ANSI)
ANSI MAP

My preferences were set to:

MTP3 (ANSI)
ANSI MAP (SSN RANGE 5-14)

Procedure:

1.  Start Ethereal
2.  Set filters
3.  Load file

Frames show up as SCCP (ANSI), ERR and DT2

4.  Edit preferences, change MTP3 -> ITU

With Ethereal 0.99.0 everything works fine the four frames come out decoded
as ANSI MAP
with:

UDT QueryWithPermInvoke(Last) Location Request UDT QueryWithPermInvoke(Last)
Routing Request UDT ResponseRetRes(Last) UDT ResponseRetRes(Last)

Following the same procedure with Wireshark 0.99.2 the decode goes as far as
TCAP but not ANSI MAP.

To get the decode to work properly I have to:

5.  Edit preferences, change ANSI MAP SSN Range to something different,
apply



--
Michael Lum                  Principal Software Engineer
4600 Jacombs Road            +1.604.276.0055
Richmond, B.C.
Canada V6V 3B1
UTStarcom Canada, Inc.
CDMA Division