ZyXEL VoIP Router Prestige 2602R-61 91-006-024004 Benutzerhandbuch

Prestige 2602R Series User’s Guide

Chapter 30 Filter Configuration

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The following table describes how to configure your TCP/IP filter rule.

Table 96   Menu 21.1.x.x TCP/IP Filter Rule 

Filter #

This is the filter set, filter rule coordinates, for instance, 2, 3 refers to the second filter 

set and the third filter rule of that set.

Filter Type

Use [SPACE BAR] and then [ENTER] to choose a rule. Parameters displayed for 

each type will be different. Choices are TCP/IP Filter Rule or Generic Filter Rule.

Active

Select Yes to activate or No to deactivate the filter rule.

IP Protocol

This is the upper layer protocol, for example, TCP is 6, UDP is 17 and ICMP is 1. 

The value must be between 0 and 255. A value of 0 matches ANY protocol.

IP Source Route

IP Source Route is an optional header that dictates the route an IP packet takes 

from its source to its destination. If Yes, the rule applies to any packet with an IP 

source route. The majority of IP packets do not have source route.

Destination:

IP Addr

Type the destination IP address of the packet you want to filter. This field is ignored 

if it is 0.0.0.0.

IP Mask

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

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.