Should port 1604 be open on my firewall?

Port 1604 is generally safe to have open. Apply standard security practices: keep software updated and monitor access logs.

What transport protocol does port 1604 use?

Port 1604 (Citrix / DPP) uses the TCP/UDP transport protocol and falls under the Remote Access category.

:1604 (TCP/UDP)

Citrix / DPP

Q: Is port 1604 (Citrix / DPP) dangerous?

Port 1604 is classified as low risk. This service uses encryption or has a minimal attack surface, making it relatively safe to expose with standard security practices.

Low Risk

TCP/UDP — Remote Access

Port Overview

Port Number 1604

Service Name Citrix / DPP

Transport Protocol TCP/UDP

Category Remote Access

Security Risk Low

Port Range Registered (1024-49151)

What is Port 1604?

Port 1604 is associated with Citrix systems and the Datagram Protocol for remote application delivery. It is sometimes used in Citrix server farm communications and load balancing scenarios. Network administrators should monitor this port in Citrix environments.

TCP/UDP Remote Access

Security Considerations

Port 1604 (Citrix / DPP) is classified as low risk. This service uses encryption or has a minimal attack surface, making it relatively safe to expose.

Recommendation: Standard security practices apply. Keep software updated and monitor access.

Related Ports — Remote Access

22 SSH 23 Telnet 57 Private Terminal Access 89 SU/MIT Telnet Gateway 95 SUPDUP 107 Remote Telnet 177 XDMCP 219 Uarps

Related Terms

SSL/TLS Certificate DDoS DNS Spoofing Encryption Firewall HTTPS