Host
A single host is represented simply by its IP address.
For example, 192.168.0.14.
IP Network
An IP Network is represented using Classless Inter Domain Routing (CIDR) form.
CIDR uses a forward slash and a digit (0-32) to denote the size of the network as a
postfix. This is also known as the netmask.
/24 corresponds to a class C net with 256 addresses (netmask 255.255.255.0), /27
corresponds to a 32 address net (netmask 255.255.255.224) and so on.
The numbers 0-32 correspond to the number of binary ones in the netmask. For
example: 192.168.0.0/24.
IP Range
A range of IPv4 addresses is represented with the form a.b.c.d - e.f.g.h.
Note that ranges are not limited to netmask boundaries. They may include any
span of IP addresses. For example, 192.168.0.10-192.168.0.15 represents six hosts
in consecutive order.
Example 3.1. Adding an IP Host Address
This example adds the IPv4 host www_srv1 with IP address 192.168.10.16 to the address book:
Command-Line Interface
gw-world:/> add Address IP4Address www_srv1 Address=192.168.10.16
Web Interface
1. Go to: Objects > Address Book > Add > IP4 Address
2. Specify a suitable name for the IP host, in this case wwww_srv1
3. Enter 192.168.10.16 for the IP Address
4. Click OK
Example 3.2. Adding an IP Network
This example adds an IPv4 network named wwwsrvnet with address 192.168.10.0/24 to the address book:
Command-Line Interface
gw-world:/> add Address IP4Address wwwsrvnet Address=192.168.10.0/24
Web Interface
1. Go to: Objects > Address Book > Add > IP4 Address
2. Specify a suitable name for the IP network, for example wwwsrvnet
3. Enter 192.168.10.0/24 as the IP Address
4. Click OK
3.1.2. IP Addresses Chapter 3. Fundamentals
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