Packet UA01

From XfirePlusWiki

Packet Description

This packet is sent to the server to begin the communication process. It specifies the protocol to be used.

Packet Layout

'55 41 30 31'

Notes

This is the only packet that does not follow the standard packet arrangement, and only contains a static 4 bytes.

As a string, it represents "UA01"

If the content is anything other than "UA01" the server immediately closes connection as it knows that it is not Xfire client connecting to it, for example web browsers would start the communication with "HTTP".