Unreal tournament 3: reverse engineering lan browser udp broadcasts

there are several resources there explaining the details of the unreal (tournament 3).

I am especially interested in the lan lan broadcast protocol on which I cannot find any material. I would be very grateful if any of you could point me somewhere so I can stop this tedious task.

wireshark reported the following:

discovery broadcast packet (sent by client to 255.255.255.255:14001)

Data: 05014d5707db53512a690835e4fae171

ff ff ff ff ff ff 7c 6d 62 8c 3c 7f 08 00 45 00   ......|mb.<...E.
00 2c 12 a1 00 00 40 11 00 00 0a 0a 0a aa ff ff   .,....@.........
ff ff 36 b1 36 b1 00 18 14 dd 05 01 4d 57 07 db   ..6.6.......MW..
53 51 2a 69 08 35 e4 fa e1 71                     SQ*i.5...q

      

        
        
        
      

    

server response (sent by the server to 255.255.255.255:14001)

Data: 05014d5707db53522a690838e4fae1710a0a0aab00001e61...

ff ff ff ff ff ff 08 00 27 07 25 89 08 00 45 00   ........'.%...E.
01 54 00 00 40 00 40 11 24 e5 0a 0a 0a ab ff ff   .T..@.@.$.......
ff ff 36 b1 36 b1 01 40 86 61 05 01 4d 57 07 db   ..6.6..@.a..MW..
53 52 2a 69 08 38 e4 fa e1 71 0a 0a 0a ab 00 00   SR*i.8...q......
1e 61 00 00 00 10 00 00 00 00 00 00 00 10 00 00   .a..............
00 00 01 01 01 01 01 01 01 00 01 00 00 00 00 00   ................
00 00 00 00 00 00 05 3a 75 74 33 3a 00 00 00 0c   .......:ut3:....
00 00 80 0b 00 00 00 02 01 00 00 00 00 00 00 00   ................
03 01 00 00 00 01 00 00 00 00 01 00 00 00 06 00   ................
00 00 01 01 00 00 00 07 00 00 00 00 01 00 00 00   ................
08 00 00 00 01 01 00 00 00 09 00 00 00 00 01 00   ................
00 00 0a 00 00 00 00 01 00 00 00 0b 00 00 00 00   ................
01 00 00 00 0c 00 00 00 00 01 00 00 00 0d 00 00   ................
00 01 01 00 00 00 0e 00 00 00 01 01 00 00 00 08   ................
40 00 00 01 04 00 00 00 0d 57 41 52 2d 41 76 61   @........WAR-Ava
6c 61 6e 63 68 65 02 40 00 00 02 04 00 00 00 25   lanche.@.......%
55 54 47 61 6d 65 43 6f 6e 74 65 6e 74 2e 55 54   UTGameContent.UT
4f 6e 73 6c 61 75 67 68 74 47 61 6d 65 5f 43 6f   OnslaughtGame_Co
6e 74 65 6e 74 02 10 00 00 f8 01 00 00 00 00 01   ntent...........
10 00 00 f9 01 00 00 00 14 01 10 00 00 f7 01 00   ................
00 00 0b 01 40 00 00 03 04 00 00 00 00 02 10 00   ....@...........
01 05 01 00 00 00 00 01 40 00 00 04 04 00 00 00   ........@.......
00 02                                             ..

      

        
        
        
      

    

the discovery packet differs in some bytes for each request, but has the same structure each time.

the response contains the request bytes at the beginning, some garbage, and apparently a bunch of really useful bits.

how can i figure out the answer?
does the garbage contain useful data, how can I find out? who has some experience in this matter, will have what advises?