ZyXEL Communications 681 用户手册
Prestige 681 SDSL Router
Filter Configuration
9-15
9.4 Example
Filter
Let’s look at the third default ZyXEL filter, TELNET_WAN (see Figure 9-2 and Figure 9-5) as an
example. Please see our PNC Disk for more example filters. This filter is designed to block outside users
telnetting into the Prestige.
example. Please see our PNC Disk for more example filters. This filter is designed to block outside users
telnetting into the Prestige.
Figure 9-10
Telnet Filter Example
Step 1.
Enter 21 from the Main Menu to open Menu 21 - Filter Set Configuration.
Step 2.
Enter the index of the filter set you wish to configure (in this case, 3) and press [ENTER]
.
Step 3.
Enter a descriptive name or comment in the Edit Comments field (in this case TELNET_WAN)
and press [ENTER].
and press [ENTER].
Step 4.
Press [ENTER] at the message: [Press ENTER to confirm] to open Menu 21.1 - Filter Rules
Summary
Summary
.
Step 5.
Enter 1 to configure the first filter rule (the only filter rule of this set). Make the entries in this
menu as shown in the following figure.
menu as shown in the following figure.