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UDP 2638

ProtocolUDP
Port2638
LabelsSQL Anywhere database server

Synopsis

  • Port 2638/UDP is officially assigned to Sybase SQL Anywhere (aka SAP SQL Anywhere, formerly Adaptive Server Anywhere).
  • SQL Anywhere uses UDP 2638 for server discovery/broadcast on local networks, so clients can locate database engines and learn the TCP port to connect to.
  • Real-world examples: SAP SQL Anywhere 17/16 and earlier Sybase SQL Anywhere/Adaptive Server Anywhere releases; client tools like dbping (with -d), dblocate, and the Sybase Central console use UDP 2638 for discovery.
  • Products that embed SQL Anywhere—such as Symantec Endpoint Protection Manager’s “Symantec Embedded Database” in older versions and some SAP deployments—can also generate UDP 2638 traffic for this discovery mechanism.

Observed activity

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