device discovery

ArtnetScanner uses mostly undocumented desk hellos. Most of this is reverse engineered or guessed.

Compulite Vector

Destination: 255.255.255.255:4096 UDP

Wireshark capture:
0000 00 02 00 00 00 00 33 2e 32 30 2e 52 30 34 00 00 ......3.20.R04..
0010 00 00 6e 00 48 21 ..n.H!

Fild Name	size	format
unknown	6B
Version	min 8B, maybe variable	ASCII
zeros, maybe part of Version	4 B
unknown	4B

MA2

Destination: 236.4.0.0:29998 UDP

Wireshark capture:
0000 02 00 00 02 01 00 07 00 cc 00 01 01 80 3f 00 24 .............?.$
0010 00 00 00 00 00 00 00 00 00 00 00 00 ff ff ff ff ................
0020 ff 00 00 00 e7 00 00 00 fa 16 00 00 fa 16 00 00 ................
0030 cc 01 01 ff ff 00 00 00 00 00 00 00 00 00 00 00 ................
0040 04 00 00 03 1f 53 61 62 72 69 6e 61 2d 50 43 00 .....Sabrina-PC.
0050 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0060 00 00 00 00 c8 0a a9 49 7e bb 00 00 02 00 00 02 .......I~.......
0070 01 00 07 00 ff 00 00 00 fe 80 00 00 d4 72 62 6f .............rbo
0080 0a 00 18 00 00 00 0c a8 02 00 00 02 01 00 07 00 ................
0090 00 00 00 00 fe 80 00 00 d4 72 62 6f 0a 00 18 00 .........rbo....
00a0 00 00 0c a8 c5 00 00 00 98 3a 00 00 64 00 ba 07 .........:..d...
00b0 01 00 01 00 20 02 df 0d 00 00 00 00 00 00 00 00 .... ...........
00c0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00d0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00e0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00f0 00 00 00 00 00 00 00 00 00 00 00 00 ............

Fild Name	size	format
IP	4B	int
unknown	7B
priority	1B	int, 0-3
unknown	28B
seq(?)	4B
seq(?)	4B
unknown	16B
version	4B	int, reverse order
hostname lenght(guessing)	1B	int
hostname	variable, max 31B	ascii

Enttec

Source: www.enttec.com/pdf/misc/ESP_protocol.pdf

Destination: 255.255.255.255:3330 UDP
...
Fild Name | size | format
----------|------|-------
header | 4B | ASCII: ESPR
Device MAC | 6B | int
Node Type | 2B |unknown
Version| 1B| int x*10
Switch Settings | 1B | unknown
Model | 10B | ASCII
Option Field | 1B | unknown
TOS | 1B | unknown
TTL | 1B | unknown
Device Name | 20B | ASCII