Crate mcbe_lan_advertizer

Minecraft Bedrock Server LAN Advertizer

On pocket edition there is a way to play with friends on same LAN using the friends tab. For this to work a client will send a Ping packet as a broadcast to port 19132. Normally a server will respond to these packets with Pong packet.

Most mobile servers (open to LAN games) will respond to Pings properly. However a dedicated server may ignore a request because it thinks it’s outside the LAN. Or because of some other reason that we do not know.

Modes of operation

Relay

In relay mode the program will listen on port 19132 and forward packets to the real server. This way the server thinks the Ping comes from a localhost client and should not deny this request. Then the program will take the Pong that the real server generated and send it to the client.

server.properties

In properties mode the program will read server.properties and use the information there to generate a Pong packet. This can be used if the server still does not respond with Pong requests.

Because the actual server runs on a random port that port number is transmitted in the Pong packet. Thus we can run a dedicated server on any port and point this program to Pong the correct, but arbitrary port.

Usage

See config::args

Still have questions or need support?

Read the extended README.md on GitHub. It has more details while this page is dedicated to developers.

Modules

• config
  Configures the Pong responce. CLI arguments and the server.properties file are parsed here.
• error
  Defines errors that could occur during execution
• pong
  Pong Represents a UDP raknet Pong packet as a struct