User`s guide

Configure Network IP Filtering
Chapter 16 Configuration Menu Interface 250
IP Filtering Rules
This table describes the IP filtering rules.
IP
Filtering
Rule
Description
#1 Defines SSH access to the Digi Passport 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.
#2 Defines Telnet access to the Digi Passport 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 Passport 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