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Menu Reference
The “System” Tab
2. Convert a few IP addresses before and after 192.168.2.81 to binary numbers. Then compare their
first 30 digits with the binary numbers of 192.168.2.81.
1. Convert 192.168.2.80 to binary numbers. The binary numbers are
11000000.10101000.00000010.01010000. The first 30 digits are the same with the binary num-
bers of 192.168.2.81, thus 192.168.2.80 will be filtered.
2. Convert 192.168.2.79 to binary numbers. The binary numbers are
11000000.10101000.00000010.01001111. The first 30 digits are different with the binary num-
bers of 192.168.2.81, thus 192.168.2.79 will not be filtered. This also means the IP addresses
before 192.168.2.79 will not be filtered. Therefore, you can stop converting the IP addresses
before 192.168.2.79 to binary numbers.
3. Repeat the same procedure in “a” with the IP addresses after 192.168.2.81. Stop when the
situation occurs in “b” happened. Namely, the 30th digit of the binary numbers of IP address
192.168.2.84 is different, and will not be filtered.
As a result, the IP addresses 192.168.2.80 to 192.168.2.83 will be filtered when entering
192.168.2.81/30. The following table clearly shows the 30
th
digit of the binary numbers of IP
addresses 192.168.79 and 192.168.84 are different from the others. Therefore, these two IP addresses
will not be filtered.
IP Addresses Binary Numbers
192.168.2.79 11000000.10101000.00000010.01001111
192.168.2.80 11000000.10101000.00000010.01010000
192.168.2.81 11000000.10101000.00000010.01010001
192.168.2.82 11000000.10101000.00000010.01010010
192.168.2.83 11000000.10101000.00000010.01010011
192.168.2.84 11000000.10101000.00000010.01010100
IEEE 802.1X
To edit the IEEE 802.1x settings, select System> Security> IEEE 802.1X.
The camera is allowed to access a network protected by 802.1X/EAPOL (Extensible Authentication
Protocol over LAN).
Choose On to enable the IEEE 802.1X function.
Select one among the four protocol types: EAP-MD5, EAP-TLS, EAP-TTLS and EAP-PEAP.
Users need to contact with the network administrator for gaining certificates, user IDs and pass-
words.
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