2598
Citrix Reliable ICA
Medium RiskTCP — Remote Access
Port Overview
Port Number
2598
Service Name
Citrix Reliable ICA
Transport Protocol
TCP
Category
Remote Access
Security Risk
Medium
Port Range
Registered (1024-49151)
What is Port 2598?
Port 2598 is used by Citrix for Reliable ICA (RICAL), an enhanced version of the ICA protocol that provides session reliability and connection quality improvements. It allows Citrix sessions to automatically reconnect after brief network interruptions without losing the desktop session. This port is used alongside port 1494 in Citrix XenApp/XenDesktop environments.
TCP
Remote Access
Commonly Used
Security Considerations
Port 2598 (Citrix Reliable ICA) is classified as medium risk. While this service is commonly exposed, consider using encrypted alternatives where available.
Recommendation: Keep the service updated. Monitor logs for unusual activity.