Port 6112Battle.net Gaming

Port 6112 is predominantly used for Blizzard's Battle.net gaming service, facilitating multiplayer matchmaking, real-time communication, and game data synchronization. It also serves similar functions for other popular gaming platforms such as ArenaNet and Relic, enabling seamless online gameplay and connectivity between gamers around the world..

transport
tcp

single transport

in transit
cleartext

payload readable on path

assignment
unofficial

used by convention

risk
4/10

caution

lookups
13,632

rank 261 of 993 · top 26%

2 other services are registered on port 6112. compare all 3

Technical Details

what runs on :6112

Port 6112 is widely recognized within the gaming industry, primarily associated with Blizzard Entertainment’s Battle.net platform. This port is traditionally used by multiplayer games such as Warcraft III, StarCraft, and Diablo series to handle matchmaking, lobby communication, and in-game data exchange. When a game is launched or a user connects to Battle.net, port 6112 facilitates the handshake between the client and the game server, ensuring a stable multiplayer environment.

In addition to Blizzard, other game developers like ArenaNet (Guild Wars) and Relic Entertainment leverage this port for similar purposes. It handles both control commands such as player invites and status updates, as well as real-time game data including player movements and actions. Typically, the client will use an outbound TCP connection to interact with dedicated servers or peer hosts, depending on the game's architecture.

While initially designed around TCP, it is notable that in practice some derivative or proprietary protocols have been layered on top. The port itself is unofficial but has become a de facto standard for legacy and certain contemporary gaming services, playing a critical role in multiplayer gaming infrastructure.

Security Information

exposure of :6112

risk score

4/ 10caution

worth attention. how exposed you are depends on configuration — don't leave it reachable from the internet without a reason.

gaming averages 4.0 across 124 ports — this one sits level with it.

in transit

cleartext

credentials and payloads are readable by anyone on path

assignment

unofficial

used by convention, not registered — what answers here varies by deployment

reachable over

tcp

every listening transport is another surface to filter at the edge

security overview

Common Vulnerabilities:

  • Because port 6112 is often left open on firewalls for online gaming, it may be targeted for port scanning and unauthorized access attempts.
  • Legacy games may lack encrypted communication, exposing the data stream to eavesdropping or man-in-the-middle (MITM) attacks.
  • Exploitable vulnerabilities within the client or server software listening on port 6112 could allow remote code execution or denial-of-service attacks.

Common Mitigations:

  • Implement firewall policies to restrict inbound traffic on this port to known IP addresses or gaming services.
  • Encourage the use of updated game clients that support secure authentication and encrypted communication where available.
  • Monitor network activity on port 6112 for unusual patterns that could indicate scanning or exploitation attempts.
  • Segment gaming traffic from sensitive business or personal network segments to limit exposure.

the 8 most looked-up other ports in gaming — 124 ports carry that label.

risk mix of the 8 listed

  • caution100%

0 of 8 encrypted