beautypg.com

Example filters – Netopia 4553 User Manual

Page 175

background image

Security 11-175

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 4553. 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

See also other documents in the category Netopia Hardware: