Re: [Ethereal-users] Ethereal - ANSI SCCP problems

["Martin Regner" <martin.regner@xxxxxxxxx>]

Bhandare Shashidhar wrote:
> I am trying to use Ethereal for monitoring ANSI SCCP.
> I observed the following problems while using GT
> format 0 and GT Format 1. Can you please let me know
> were there any fixes done to resolve these problems.
> 
> I have not used GT Format 2 yet.
> 
> I am using 0.10.4 release of Ethereal on SUN OS 5.9.
> 


> 
> Problems:
> 
> 1. For GT Format 0, the SCCP Called and Calling Party
> IE headers are decoded similar to ITU. Where as the
> ordering of SSN and PC fields are reversed.
> 
> 2. For GT Format 1, the Called and Calling party IE
> has these fields:
> 
>     OCTET x:
>      - Translation type
> 
>     OCTET y:
>      - Numbering Plan
>      - Encoding scheme
> 
> The present decode assumes one more field Nature of
> Address at OCTET z: and decodes the fist byte of
> address digits.

Please note that you probably have to configure Ethereal to handle ANSI instead of ITU.

Edit/Preferences.../Protocols/MTP3/MTP3 Standard

I don't know if that will solve your problems, but at least it seems that packet-sccp.c is using
the mtp3_standard setting from MTP3 dissector.