Port 1645

Port 1645 is used for Remote Authentication Dial-In User Service (RADIUS) authentication protocol. It is primarily used for communication between the RADIUS client and server in order to authenticate and authorize users on a network.

Ports those registered with IANA are shown as official ports. The same port number may be unofficialy used by various services or applications. The official usage are listed separately below its usage may change from time to time.

Official

Port
Protocol (TCP/UDP)
Title
Description
Port Type
Port 1645
tcp
sightline
SightLine
REGISTERED PORT
Port 1645
udp
sightline
SightLine
REGISTERED PORT

UnOfficial

Unofficialy or sometimes with conflict, the same port may be used by different applications.

Port Protocol (TCP/UDP) Description
Port 1645 radius auth, RADIUS authentication protocol (default for Cisco and Juniper Networks RADIUS servers)
TCP UDP Ports
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