Zyxel-communications Internet Security Gateway ZyWALL 100 Uživatelský manuál stáhnout pdf (Strana 180)

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ZyWALL 100 Internet Security Gateway

16-10 Creating Custom Rules

SERVICE DESCRIPTION

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.

16.5.1 Creating/Editing Firewall Rules

Follow these directions to create a new rule.

Step 1. In the Summary screen, type the index number for where you want to put the rule. For example,

if you type “6”, your new rule becomes number 6 and the previous rule 6 (if there is one) becomes

rule 7.

Step 2. Click Insert to display this screen and refer to the following table for information on the fields.

1 2 ... 175 176 177 178 179 180 181 182 183 184 185 ... 355 356

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