Wireshark-users: Re: [Wireshark-users] Gr Interface

Date: Thu, 22 Feb 2007 17:13:35 +0100

      Hello,


You have to modify your test file to add an "ascii dump" at each end of
line, and to remove the lines containing a description
(see the attached text file).
Then you will have to convert the file with:
text2pcap -l 140 hex2.txt hex2.cap

The link layer for Gr interface is MTP2.

(See attached file: hex2.txt)(See attached file: hex2.cap)

Regards
Florent


                                                                                                                                  
                      "Cortes, Joseph"                                                                                            
                      <joseph.cortes@xxxxxxxxxxx         To:      <wireshark-users@xxxxxxxxxxxxx>, <wireshark-dev@xxxxxxxxxxxxx>  
                      >                                  cc:                                                                      
                      Sent by:                           Subject: [Wireshark-users] Gr Interface                                  
                      wireshark-users-bounces@wi                                                                                  
                      reshark.org                                                                                                 
                                                                                                                                  
                                                                                                                                  
                      22/02/2007 12:33                                                                                            
                      Please respond to                                                                                           
                      Community support list for                                                                                  
                      Wireshark                                                                                                   
                                                                                                                                  




Hi,

Totally new to the wireshark product:

I've captured the following on the Gr interface i.e. between the SGSN and
the HLR on a Nettest MPA 7300 and save the capture as hex only. (file
attached)

I've tried the text2pcap ? l 147 hex.txt hex.cap ( Not sure if this is what
I should be doing) this creates the hex.cap file.

C:\Programs\Wireshark>text2pcap -l 147 hex.txt hex.cap
Input from: hex.txt
Output to: hex.cap
Wrote packet of 15 bytes at 0
Wrote packet of 15 bytes at 15
Wrote packet of 15 bytes at 30
Wrote packet of 15 bytes at 45
Wrote packet of 15 bytes at 60
Wrote packet of 15 bytes at 75
Read 6 potential packets, wrote 6 packets


I open this file with wireshark, then under DLT user A I select the DLT=147
and the payload as gsm_map but I get

"DLT User A: No such proto: gsm_map"

How do I go about to decode this file??

Thanks

Joe





If you have any questions or comments please let me know.

Kind Regards

Joseph Cortes

Current Date & Time in Gibraltar

Joseph Cortes
Wireless Department

Gibtelecom
P.O. Box 929
Suite 942 Europort
Gibraltar

Tel: +350 52211
GSM: +350 57003000
Fax: +350 57003500
Email: joseph.cortes@xxxxxxxxxxx
Web: www.gibtele.com

STANDARD EMAIL DISCLAIMER FOLLOWS FOR LEGAL REASONS:
This electronic message contains information from GIBTELECOM which may be
privileged or confidential. The information is intended to be for the use
of the individual(s) or entity named above. If you are not the intended
recipient, be aware that any disclosure, copying, distribution or use of
the contents of this information is prohibited. If you have received this
electronic message in error please notify us by telephone or e-mail (to the
number or address above) and delete it

Viruses: Although our Company attempts to sweep e-mail and attachments for
viruses, it does not guarantee that either are virus-free and accepts no
liability for any damage sustained as a result of viruses

 (See attached file: HEX.TXT)
_______________________________________________
Wireshark-users mailing list
Wireshark-users@xxxxxxxxxxxxx
http://www.wireshark.org/mailman/listinfo/wireshark-users


Attachment: hex2.txt
Description: Binary data

Attachment: hex2.cap
Description: Binary data

Attachment: HEX.TXT
Description: Binary data