Reference Guide for the Model RT328 and Model RH348 ISDN Routers

 

 

 

 

 

Table 8-4.

TCP/IP Filter Rule Menu Fields

 

 

 

 

Field

 

Descriptions

 

 

 

 

 

 

Active

 

In this field, you can make the filter rule active (Yes) or make the filter rule inactive (No).

 

 

 

 

IP Protocol

 

Protocol refers to the IP-specific number of the protocol. The range for the value

 

 

entered in this field should be between 0 and 255 (for example, 6 refers to the TCP

 

 

protocol).

 

 

 

 

IP Source Route

 

Yes or No in this field determines whether to check the source route.

 

 

 

 

 

Destination:

 

 

 

 

IP Addr

 

In this field, enter the destination IP address of the packet you want to filter. The

 

 

address is usually written in dotted-decimal notation such as a.b.c.d where a, b, c, and

 

 

d are numbers between 0 and 255.

IP Mask

 

In this field, enter the IP subnet mask that will be used to mask the bits of the

 

 

IP address given in Destination: IP Addr. Refer to Chapter 1, “Introduction,” for more

 

 

information.

Port #

 

In this field, enter the destination port of the packets that you want to filter. The range of

 

 

this field is 0 to 65535.

Port # Comp

 

In this field, select the comparison quantifier you want to enable to compare to the value

 

 

given in Destination: Port #. There are five options for this field:

 

 

• None (default)

 

 

• Less

 

 

• Greater

 

 

• Equal

 

 

• Not Equal

 

 

 

 

 

Source:

 

 

 

 

IP Addr

 

In this field, enter the source IP address of the packet you want to filter. The IP address

 

 

is usually written in dotted-decimal notation such as a.b.c.d where a, b, c, and d are

 

 

numbers between 0 and 255.

IP Mask

 

In this field, enter the IP subnet mask that is used to mask the bits of the IP Address

 

 

given in Source: IP Addr. See “Netmask” on page 1-9 for information about IP subnet

 

 

masks.

Port #

 

In this field, enter the source port of the packets that you want to filter. The range of this

 

 

field is 0 to 65535.

 

 

 

 

 

Filter Configuration

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