I have recently wondered about the packet format of wow (when playing on a wowemu server), looking at packets i seen that if i do one action twice i get packets where the info part (something + questid) seems identical but the first few bytes in front of it differ, also if i resend a packet it seems to **** my data stream to the server, so i suspect that the first few bytes are the opcode (and so the packet length) encoded somehow.
Is there any resource you know i could read to understand them so i can craft ones myself ?
I thought about private server source/documentation but haven't found anything so far.
Thanks in advance.






