Filter basics – Netopia 4553 User Manual
Page 174

11-174 User’s Reference Guide
Example filter set screen
This is an example of the Netopia filter set screen:
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).
The Netopia 4553 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