Example network, Example filters, Example 1 – Netopia R2121 User Manual
Page 196: Example filters -34
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14-34 User’s Reference Guide
Example Network
Example Filters
Example 1
Incoming packet has the source address of 200.1.1.28
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.
Filter Rule:
200.1.1.0
(Source IP Network Address)
255.255.255.128
(Source IP Mask)
For ward = No
(What happens on match)
IP Address
Binar y Representation
200.1.1.28
00011100
(Source address in incoming IP packet)
AND
255.255.255.128
10000000
(Per form the logical AND)
00000000
(Logical AND result)
Netopia
Internet
IP: 200.1.1.??
DATA
Incoming
Packet Filter
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