UDP 1200
Synopsis
- Valve Steam: the Steam client has historically used UDP port 1200 for the Friends/Presence (and sometimes voice) service; many official/legacy Steam firewall guides list “UDP 1200” as required for client connectivity on Windows/macOS/Linux.
- SCOL (Scol Voyager): the SCOL multimedia/virtual-worlds platform by Cryo-Networks used UDP port 1200 (service name “scol”) for client/server communication on its servers.
Observed activity
Last 30 days
Detailed chart