
Quick Start Guide ePowerSwitch 8 M/S (M8 / S8) V.11/2006 Page
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6. Configuring the security settings
Explanation of the mask settings
Each mask consists of an IP address or an IP address range and defines the access rights to
the ePowerSwitch’s Web server for those addresses or address ranges..
Each mask can be activated or deactivated.
Each IP address consists of a series of four eight-bit numbers. The number 255 is a wildcard
representing any number.
Masks are listed in order of descending priority; mask 1 has the highest priority.
Higher-priority masks override lower-priority ones.
Example 1
⇒
Deny access to all IP addresses except 192.168.001.015
Mask
IP address
Permit
Deny
Activated
1 192.168.001.015
9
9
2 255.255.255.255
9
9
Example 2
⇒
Permit access only to IP addresses beginning with 192
Mask
IP address
Permit
Deny
Activated
1 192.255.255.255
9
9
2 255.255.255.255
9
9
Example 3
⇒
Permit access only to IP addresses beginning with 192
⇒
Deny access to IP address 192.168.001.010
Mask
IP address
Permit
Deny
Activated
1 192.168.001.010
9
9
2 192.255.255.255
9
9
3 255.255.255.255
9
9
Example 4
⇒
Permit access to IP addresses beginning with 192
⇒
Deny access to address 192.168.001.010
⇒
Permit access to IP addresses beginning with 217.128.103
Mask
IP address
Permit
Deny
Activated
1 192.168.001.010
9
9
2 192.255.255.255
9
9
4 217.128.103.255
9
9
3 255.255.255.255
9
9