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Configuring Network IP Filtering

76 Chapter 8

Be aware that you must apply the changes to make them active.

This screen shows five established IP rules.

This table describes the rules.

Rule Description

Defines SSH access to the Digi CM unit (port 22).

• The Normal option specifies that the rule applies to all

addresses listed.

• The rule says to Accept traffic from these addresses for Port 22.

Defines Telnet access to the Digi CM unit (port23).

• The Invert option specifies that the rule applies to all addresses

except those listed.

• The rule says to Drop traffic from all addresses not listed.

#3, 4, 5

Define access to the Digi CM unit using HTTP (port 80).

• Rule 3 blocks all traffic.

• Rule 4 allows access from IP address 192.168.1.0.

• Rule 5 allows access from IP address 192.168.2.0.

Allowable Hosts Input format

Base Host IP Address Subnet mask

Any host 0.0.0.0 0.0.0.0

192.168.1.120 192.168.1.120 255.255.255.255

192.168.1.1 -

192.168.1.254

192.168.1.0 255.255.255.0

192.168.0.1 -

192.168.255.254

192.168.0.0 255.255.0.0

192.168.1.1 -

192.168.1.126

192.168.1.0 255.255.255.128

192.168.1.129 -

192.168.1.254

192.168.1.128 255.255.255.128

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Digi CM Betriebsanweisung Seite 76