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13-148 User’s Reference Guide
This incoming IP packet has a source IP address that matches the network address in the Source IP Address
field (00000000) in the Netopia R910. This will not forward this packet.
Example 2
Incoming packet has the source address of 200.1.1.184.
This incoming IP packet (10000000) has a source IP address that does not match the network address in the
Source IP Address field (00000000) in the Netopia R910. This rule will forward this packet because the packet
does not match.
Example 3
Incoming packet has the source address of 200.1.1.184.
Filter Rule: 200.1.1.0 (Source IP Network Address)
255.255.255.128 (Source IP Mask)
Forward = No (What happens on match)
IP Address Binary Representation
200.1.1.184 10111000 (Source address in incoming IP packet)
AND
255.255.255.128 10000000 (Perform the logical AND)
10000000 (Logical AND result)
Filter Rule: 200.1.1.96 (Source IP Network Address)
255.255.255.240 (Source IP Mask)
Forward = No (What happens on match)
IP Address Binary Representation
200.1.1.184 10111000 (Source address in incoming IP packet)
AND
255.255.255.240 11110000 (Perform the logical AND)
10110000 (Logical AND result)