ZyXEL Communications Prestige 202H Series, User Manual

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Prestige 202H User’s Guide
Creating Custom Rules 15-9
Table 15-2 Predefined Services
TACACS(UDP:49) Login Host Protocol used for (Terminal 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.
TFTP(UDP:69) 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).
VDOLIVE(TCP:7000) Another videoconferencing solution.
15.5.1 Creating/Editing Firewall Rules
To create a new rule, click a number ( No. ) in the last screen shown to display the following screen.