3Com OfficeConnect 3C16771 - Intranet Window Boxes and Controls

116
C
HAPTER
4: C
OMMAND
R
EFERENCE
Using the exclusive method, you specify the IP addresses of
the machines connected to the Internet Firewall’s WAN
port. Use this method in cases such as a large school district
with a small student computer lab where it would be easier
to specify the small number of machines on the WAN
which are not protected by the intranet firewall, rather
than the larger number of machines which are.
Typically, it is easier to enter the IP addresses from the
smaller number of machines. Enter these addresses
individually, or as a range.
IP addresses for Workstations on the LAN port must have
static IP addresses or use the Internet Firewall as a DHCP
server. It is not possible for them to use a DHCP server
connected to the WAN port.
Intranet Window Boxes and Controls
■
Internet Firewall’s WAN link is connected directly to the
Internet router
Use this setting if the Internet Firewall is protecting the
entire network. This is the default setting.
■
Specified address ranges are attached to the LAN link
Select this when it is easier to specify which devices are
on the LAN. If a machine’s IP address is not specified, all
communications through the Internet Firewall for that
machine are blocked.
■
Specified address ranges are attached to the WAN link
Select this when it is easier to specify which devices are
on the WAN port.
■
Add Range
To enter a range of addresses, such as the 51 IP
addresses from
192.168.23.50
to
192.168.23.100
,
type the starting address in the
From Address
box and
the ending address in the
To Address
box. To specify an
individual address, type it in the
From Address
box only.
You can specify up to 64 address ranges.
Click
Update
to send the configuration data to the
Internet Firewall.