ZyXEL Communications NBG6604 User Manual page 141

Table 42 Commonly Used Services (continued)
NAME PROTOCOL
TACACS UDP
TELNET TCP
TFTP UDP
VDOLIVE TCP
Appendix C Common Services
PORT(S)
49
23
69
7000
NBG6604 User's Guide
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DESCRIPTION
Login Host Protocol used for (Terminal Access
Controller Access Control System).
Telnet is the login and terminal emulation protocol
common on the Internet and in UNIX environments. It
operates over TCP/IP networks. Its primary function is
to allow users to log into remote host systems.
Trivial File Transfer Protocol is an Internet file transfer
protocol similar to FTP, but uses the UDP (User
Datagram Protocol) rather than TCP (Transmission
Control Protocol).
Another videoconferencing solution.