Figure 33-12 Menu 21.1.6.1 Sample Filter - ZyXEL Communications Prestige 662HW Series User Manual

Prestige 662HW Series User's Guide
Filter #: 6,1
Filter Type= TCP/IP Filter Rule
Active= Yes
IP Protocol= 6
Destination: IP Addr= 0.0.0.0
IP Mask= 0.0.0.0
Port #= 23
Port # Comp= Equal
IP Mask= 0.0.0.0
Port #=
Port # Comp= Equal
TCP Estab= No
More= No
There are no
Action Matched= Drop
more rules to
Action Not Matched= Forward
check.
Select Drop here so that the
packet will be dropped if its
destination is the telnet port.
After you have created the filter set, you must apply it.
Enter 11 in the main menu to display menu 11 and type the remote node number to edit.
2.
Go to the Edit Filter Sets field, press [SPACE BAR] to choose Yes and press [ENTER].
This brings you to menu 11.5. Apply the example filter set (for example, filter set 3) in this menu as
shown in the next section.
33-12
Menu 21.1.6.1 - TCP/IP Filter Rule
Source: IP Addr= 0.0.0.0
Press ENTER to Confirm or ESC to Cancel:
Select Forward here so that the packet will be forwarded if
its destination is not the telnet port and there are no more
rules in this filter set to check. Select Next if there are
more rules to check.

Figure 33-12 Menu 21.1.6.1 Sample Filter

IP Source Route= No
Log= None
Press [SPACE BAR] to choose this
filter rule type. The first filter rule
type determines all subsequent filter
types within a set.
Select Yes to make the rule active.
6 is the TCP protocol.
The port number for the telnet
service (TCP protocol) is 23. See
RFC-1060 for port numbers of well-
known services.
Select Equal here as we are
looking for packets going to port
23 only.
Filter Configuration