LAN Announcer

Announces the server to the LAN using multicast UDP.

Sends an announcement packet every 1.5 seconds on both IPv4 and IPv6, similar to how the normal Minecraft client does when you “Open to LAN”.

Makes the server automagically appear on all Minecraft clients on the same local network.

Really nice when making home server for LANs or for the kids.

Technical details

Every 1.5 seconds it sends the payload:

[MOTD]<server motd>[/MOTD][AD]<server listen port>[/AD]

For example:

[MOTD]A Minecraft Server[/MOTD][AD]25565[/AD]

Over UDP port 4445 to the IP addresses:

常见问题

LAN Announcer 支持哪些 Minecraft 版本？

LAN Announcer 支持 Minecraft Java 版 1.20.4，可用的加载器：Fabric。下载时注意选择和你游戏版本一致的文件。

LAN Announcer 怎么安装？

先用 PCL2 或 HMCL 启动器安装对应版本的 Fabric，再把下载的 .jar 文件放进游戏目录的 mods 文件夹，重新启动游戏即可。开启了版本隔离的，mods 文件夹在 versions/版本名下面。运行环境：仅服务端。