Справочник Пользователя для Netopia R2121

Security 14-35

This incoming IP packet has a source IP address that matches the network address in the Source IP Address
field (00000000) in the Netopia R2121. This will NOT for ward 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 R2121. This rule WILL for ward 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)

For ward = No

(What happens on match)

IP Address

Binar y Representation

200.1.1.184

10111000

(Source address in incoming IP packet)

AND

255.255.255.128

10000000

(Per form the logical AND)