Re: [Ethereal-users] support for H245

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

Rajrajan wrote:

>I need to decode H245 Hex message received on uplink and down link of  3G wireless network.

>Is there a way or interface available in Ethereal where I give H.245 message Hex string it will display

>Decoded H.245 message.

 

You can maybe use a perl-script/python-script/ruby-script or similar to convert your hexdata to a file that can be read into ethereal.

http://www.ethereal.com/lists/ethereal-users/200304/msg00105.html

 

If you just want to analyze a few messages you could use text2pcap to convert the octets to a file in libpcap format.

http://www.ethereal.com/docs/man-pages/text2pcap.1.html

 

<text2pcap -u 1999,1999  test.txt  test.pcap

 

test.txt is the infile and test.pcap is the outfile. I have enclosed a sample with two H.245 PDUs.

 

You can then mark one of the packet and use "Decode As..." and then select H.245 in the list of protocols.

Actually it is not normal to send H.245 directly over UDP, but I used this feature to basic test the H.245 dissector.

 

0000  6d 81 02 06 00   





0000  02 30 02 06 00 08 81 75 00 03 03 80 00 00 20 c0  
0010  1d 80 00 01 20 40 1d 80 00 02 84 01 40 80 00 03  
0020  84 01 50 01 80 01 02 00 00 00 00 00 02 00 00 03  
0030  80 02 02 00 00 01 00 00 02 00 00 03

Attachment: test.pcap
Description: Binary data