Symantec Norton Personal Firewall 2003, Руководство пользователя

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Controlling access to protected computers
Control how people use your computer
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Specify a range of computers
You can enter a range of computers by specifying the starting (lowest
numerically) IP address and the ending (highest numerically) IP address.
All of the computers within that range of IP addresses are included.
In almost every case, the first three of the four numbers of the IP addresses
entered should be the same.
To specify a range of computers
1
In the Specify Computers dialog box, click Using a range .
2
In the Starting Internet Address text box, type the starting (lowest
numerically) IP address.
3
In the Ending Internet Address text box, type the ending (highest
numerically) IP address.
4
Click
OK
.
Specify computers using a network address
You can identify all of the computers on a single subnet by specifying an IP
address and a subnet mask. The IP address that you specify can be any
address in the subnet that you are identifying.
To specify computers using a network address
1
In the Specify Computers dialog box, click Using a network address .
2
In the Network Address text box, type the IP address of a computer on
the subnet.
3
In the Subnet Mask text box, type the subnet mask.
The appropriate subnet mask is almost always 255.255.255.0.
4
Click
OK
.
If you use DHCP
If your ISP uses a DHCP server to provide IP addresses to users’ computers,
you must be careful when entering IP addresses.
Instead of identifying a computer with a single IP address, which might
change at any time, enter a network address using a base IP address and a
subnet mask. Enter values that cover the range of addresses that might be
assigned to the computer.