ZyXEL Communications Corporation NBG4104 用户手册
Appendix F Common Services
NBG4104 User’s Guide
229
SMTP
TCP
25
Simple Mail Transfer Protocol is the
message-exchange standard for the
Internet. SMTP enables you to move
messages from one e-mail server to
another.
message-exchange standard for the
Internet. SMTP enables you to move
messages from one e-mail server to
another.
SNMP
TCP/UDP
161
Simple Network Management Program.
SNMP-TRAPS
TCP/UDP
162
Traps for use with the SNMP (RFC:1215).
SQL-NET
TCP
1521
Structured Query Language is an interface
to access data on many different types of
database systems, including mainframes,
midrange systems, UNIX systems and
network servers.
to access data on many different types of
database systems, including mainframes,
midrange systems, UNIX systems and
network servers.
SSH
TCP/UDP
22
Secure Shell Remote Login Program.
STRM WORKS
UDP
1558
Stream Works Protocol.
SYSLOG
UDP
514
Syslog allows you to send system logs to a
UNIX server.
UNIX server.
TACACS
UDP
49
Login Host Protocol used for (Terminal
Access Controller Access Control System).
Access Controller Access Control System).
TELNET
TCP
23
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.
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.
T
UDP
69
Trivial File Transfer Protocol is an Internet
file transfer protocol similar to , but uses
the UDP (User Datagram Protocol) rather
than TCP (Transmission Control Protocol).
file transfer protocol similar to , but uses
the UDP (User Datagram Protocol) rather
than TCP (Transmission Control Protocol).
VDOLIVE
TCP
7000
Another videoconferencing solution.
Table 82
Commonly Used Services (continued)
NAME
PROTOCOL
PORT(S)
DESCRIPTION