Filter basics, Example network – Netopia 2200 User Manual

Page 151

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151

Firewall Tutorial

Filter basics

In the source or destination IP address fields, the IP address that is entered must be the
network address of the subnet. A host address can be entered, but the applied subnet
mask must be 32 bits (255.255.255.255).

Netopia Firmware Version 7.6 has the ability to compare source and destination TCP or
UDP por ts. These options are as follows:

Example network

Item

What it means

No Compare

Does not compare TCP or UDP por t

Not Equal To

Matches any por t other than what is defined

Less Than

Anything less than the por t defined

Less Than or Equal

Any por t less than or equal to the por t defined

Equal

Matches only the por t defined

Greater Than or Equal

Matches the por t or any por t greater

Greater Than

Matches anything greater than the por t defined

Data

Internet

IP 200.1.1.??

Input Packet

Filter

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