Setup guide

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Eco
Alternative Format
There are two ways an IP address can be written;
192.168.3.55 255.255.255.0.
192.168.3.55/24 - which identifies that the first 24 bits (3 octets) are the Network ID.
Both addresses are the same they are just written in a different format.
11.2001
Calculating IP Address Range
If we are to include an address range within the Firewall option, it is necessary to:
Identify the IP address range.
Calculate the subnet mask.
The following tables show the format for each Class (A, B, C), they include the IP address and number
of bits allocated to the network address, equivalent subnet mask, IP address range and number of
hosts.
Use these tables to assist you in entering the correct information.
11.2002
Class A table
The table below shows the address ranges for a Class A network. To identify the correct information,
locate the Host address that best fits your requirements and enter the IP address and subnet or the IP
address and number of bits in the Firewall option (10.1.1.1/10).
Example IP address Network address Host Addresses
10.1.1.1/8 255.0.0.0 10.1.1.0 – 10.255.255.255
10.1.1.1/9 255.128.0.0 10.1.1.0 – 10.127.255.255
10.1.1.1/10 255.192.0.0 10.1.1.0 – 10.63.255.255
10.1.1.1/11 255.224.0.0 10.1.1.0 – 10.31.255.255
10.1.1.1/12 255.240.0.0 10.1.1.0 – 10.15.255.255
10.1.1.1/13 255.248.0.0 10.1.1.0 – 10.7.255.255
10.1.1.1/14 255.252.0.0 10.1.1.0 – 10.3.255.255
10.1.1.1/15 255.254.0.0 10.1.1.0 – 10.1.255.255
11.2003
Class B table
The table below shows the address ranges for a Class B network. To identify the correct information,
locate the Host address that best fits your requirements and enter the IP address and subnet or the IP
address and number of bits in the Firewall option (128.1.1.1/15).
Example IP address Network address Host Addresses
128.1.1.1/8 255.255.0.0 128.1.1.0 – 128.1.255.255
128.1.1.1/9 255.255.128.0 128.1.1.0 – 128.1.127.255
128.1.1.1/10 255.255.192.0 128.1.1.0 – 128.1.63.255
128.1.1.1/11 255.255.224.0 128.1.1.0 – 128.1.31.255
128.1.1.1/12 255.255.240.0 128.1.1.0 – 128.1.15.255
128.1.1.1/13 255.255.248.0 128.1.1.0 – 128.1.7.255
128.1.1.1/14 255.255.252.0 128.1.1.0 – 128.1.3.255
128.1.1.1/15 255.255.254.0 128.1.1.0 – 128.1.1.255
11.2004