Справочник Пользователя для ZyXEL ADSL Prestige 662HW-61 130122.0662HW61

Prestige 662H/HW Series User’s Guide

Chapter 36 Filter Configuration

368

The following figure illustrates the logic flow of an IP filter.

Port #

Type the destination port of the packets you want to filter. The field range is 0 to 

65535. A 0 field is ignored.

Port # Comp

Select the comparison to apply to the destination port in the packet against the value 

given in Destination: Port #. Choices are None, Less, Greater, Equal or Not 

Equal.

Source:

IP Addr

Type the source IP Address of the packet you want to filter. A 0.0.0.0 field is ignored.

IP Mask

Type the IP mask to apply to the Source: IP Addr field.

Port #

Type the source port of the packets you want to filter. The range of this field is 0 to 

65535. A 0 field is ignored.

Port # Comp

Select the comparison to apply to the source port in the packet against the value 

given in Source: Port # field. Choices are None, Less, Greater, Equal or Not 

Equal.

TCP Estab

This applies only when the IP Protocol field is 6, TCP.   If Yes, the rule matches 

packets that want to establish TCP connection(s) (SYN=1 and ACK=0); else it is 

ignored.

More

If Yes, a matching packet is passed to the next filter rule before an action is taken or 

else the packet is disposed of according to the action fields.
If More is Yes, then Action Matched and Action Not Matched will be N/A.

Log

Select the logging option from the following:
None – No packets will be logged.
Action Matched – Only packets that match the rule parameters will be logged.
Action Not Matched – Only packets that do not match the rule parameters will be 

logged.
Both – All packets will be logged.

Action Matched

Select the action for a matching packet. Choices are Check Next Rule, Forward or 

Drop.

Action Not 

Matched

Select the action for a packet not matching the rule. Choices are Check Next Rule, 

Forward or Drop.

When you have completed this menu, press [ENTER] at the prompt “

Press ENTER to Confirm 

or ESC to Cancel:

”  to save your configuration, or press [ESC] at any time to cancel.

Table 127   Menu 21.1.x.1 TCP/IP Filter Rule (continued)