What Does Christmas Tree Packet Mean?

A Christmas tree packet is a type of packet that has a number of special settings applied, which IT experts call “universal” or “default” settings. Christmas tree packets are set up in specific ways to be information heavy and to interact with various protocols in specific ways.

Techopedia Explains Christmas Tree Packet

By manipulating a TCP header, an engineer can create a Christmas tree packet where each of a number of flags or settings is set to “open,” that is, where the flags/settings are ready for a range of protocols. At the same time, this makes the data packet harder to pass through an average system and requires more processing power by a recipient. This type of packet is called a “Christmas tree packet” because of the metaphorical idea that the flags on the packet “shine” different colors and that the packet is “decked out like a Christmas tree.”