25.Select a netmask.
Consult your network administrator to specify the netmask of your subnet. The following shows an example of a netmask:
On this screen you must specify the netmask of your subnet. A default netmask is shown; do not accept the default unless you are sure it is correct for your subnet. A netmask must contain four sets of numbers separated by periods (for example 255.255.255.0).
Netmask: 192.255.255.0
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