LAN Announcer

Announces the server to the LAN using multicast UDP.

5.8K Downloads

fabricmanagementtechnologyutility

Rent Server with this Mod

Screenshots

About this Mod

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:

224.0.2.60
ff75:230::60

Available Versions

LAN Announcer 1.0.2release

MC 1.20.4fabric

January 1, 2024

LAN Announcer 1.0.1release

MC 1.20.4fabric

January 1, 2024

LAN Announcerrelease

MC 1.20.4fabric

December 31, 2023

How to Install LAN Announcer on Your Server

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (1.20.4).

Install Mod

Open the mod browser in the dashboard and search for "LAN Announcer". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

fabric

Minecraft Versions

1.20.4

Server-side

✓ Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

LAN Announcer server crashes on startup – what to do?

Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.20.4). You can switch loaders with one click in the panel.

Is LAN Announcer compatible with fabric?

LAN Announcer officially supports fabric for Minecraft 1.20.4. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with LAN Announcer – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if LAN Announcer consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.