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Chapter 4: Using the V3’s Advanced Firewall 61
IP/Mask
There are three ways to use this database. Choices
are
Single IP
,
IP Range
, or
Subnet Mask
. Your
selection depends on whether you want to specify
one IP address for an entire group, a range of IP
addresses for a group, or a range of subnet masks
for a group.
IP Entry Name
Name of your choosing. Purpose is to identify the IP
group you want to set up. Maximum field length=19
characters.
IP addr.1
IP address that you want to assign to a group.
If you selected
Single IP
, enter that IP address here.
If you selected the
IP Range
option because you
want to designate a range of addresses, enter the
beginning of the range here and enter the ending
range in the
IP
addr.2
field.
If you selected the
Subnet Mask
option, enter the
desired IP address here and enter the subnet mask
in the
IP addr.2
field. All addresses falling within that
subnet will be included in the group you set up.
IP addr.2
If you are using the
Single IP
option, this field is not
applicable.
If you are using the
IP Range
option, enter the end
of the IP address range here. Note:
IP
addr.1
has to
contain the beginning of the range.
If you are using the
Subnet Mask
option, enter the
subnet mask here. The subnet mask divides IP
addresses into groups. In the
IP addr.1
field, you
must enter an IP address of the group that you want
in the database. All IP addresses within the same
group as the address in the
IP addr.1
field will be
affected.
For example, if you enter the IP address 192.168.0.1
in the
ip addr.1
field and the subnet mask
255.255.255.0 in the
ip addr.2
field, the group will
include the addresses 192.168.0.1 to 192.168.0.255
(for a total of 255 addresses). If you enter the IP
address 192.168.0.1 in the
ip addr.1
field, and the
subnet mask 255.255.255.240 in the
ip addr.2
field,
the group will include the addresses 192.168.0.1 to
192.168.0.15 (a total of 15 addresses).