Справочник Пользователя для Netopia 4541

This is an example of the Netopia filter set screen:

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).

The Netopia 4541/4542 has the ability to compare source and destination TCP or UDP por ts. These options 
are as follows:

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

                            Change Input Filter 1

         Enabled:                           Yes
         Forward:                           No

         Source IP Address:                 0.0.0.0
         Source IP Address Mask:            0.0.0.0

         Dest. IP Address:                  0.0.0.0
         Dest. IP Address Mask:             0.0.0.0

         Protocol Type:                     TCP
         Source Port Compare...             No Compare
         Source Port ID:                    0
         Dest. Port Compare...              Equal
         Dest. Port ID:                     2000
         Established TCP Conns. Only:       No