09-03-2012, 11:09 PM
If you're using 1.3.2, the protocol is still unstable and this is the exact reason we haven't announced 1.3.2 compatibility yet. And "unknown packet" is exactly the error it usually gives. Besides crashing the client.
If you're using 1.2.5 with mods, the mods may try to communicate with something on the server using and unknown packet. MCServer doesn't support that packet yet, although the official server might. See the docs here: http://wiki.vg/Protocol#0xFA
We will support that packet, eventually, but priorities first. 1.3.2 needs to get stable before we do any other stuff.
If you're using 1.2.5 with mods, the mods may try to communicate with something on the server using and unknown packet. MCServer doesn't support that packet yet, although the official server might. See the docs here: http://wiki.vg/Protocol#0xFA
We will support that packet, eventually, but priorities first. 1.3.2 needs to get stable before we do any other stuff.