ZyXEL Communications Prestige 861H-G1, Руководство пользователя

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Prestige 861H User’s Guide
23-12 Filter Configuration
Figure 23-12 Menu 21.1.6.1 Sample Filter
After you have created the filter set, you must apply it.
1. 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].
3. 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.
Menu 21.1.6.1 - TCP/IP Filter Rule
Filter #: 6,1
Filter Type= TCP/IP Filter Rule
Active= Yes
IP Protocol= 6 IP Source Route= No
Destination: IP Addr= 0.0.0.0
IP Mask= 0.0.0.0
Port #= 23
Port # Comp= Equal
Source: IP Addr= 0.0.0.0
IP Mask= 0.0.0.0
Port #=
Port # Comp= Equal
TCP Estab= No
More= No Log= None
Action Matched= Drop
Action Not Matched= Forward
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.
There are no
more rules to
check.
Select Drop here so that the
packet will be dropped if its
destination is the telnet port.
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.