Руководство Пользователя для Netopia 4741 2a4na
12-24 Administration Guide
Example network
Example filters
Example 1
Incoming packet has the source address of 200.1.1.28
This incoming IP packet has a source IP address that matches the network address in the Source IP Address
field (00000000) in the Netopia 4741. This will not for ward this packet.
field (00000000) in the Netopia 4741. This will not for ward this packet.
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
Packet Filter