ZyXEL Communications VMG8825-B Series User Manual page 344

Table 156 Examples of Services (continued)
NAME PROTOCOL
TACACS UDP
TELNET TCP
VDOLIVE TCP
UDP
Appendix D Services
PORT(S)
49
23
7000
user-
defined
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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.
A videoconferencing solution. The UDP port number is
specified in the application.