030-300613 Rev A
101
August 2009
User Guide
VersaLink Wireless Gateway (Model 7500)
14.3.5
Public LAN
The following screen will appear if you select
Advanced > LAN > Public LAN
from the main menu. This screen
contains the settings for determining how your Gateway will interact with the local devices connected to it. It is
recommended that these settings not be changed. This feature is mutually exclusive with the VLAN feature. If you
change the settings in this screen, click
apply
and then
OK
. If you click
reset
or
Cancel
, the screen will return to its
previous settings.
Public LAN allows the Gateway to issue DHCP addresses from its Public LAN IP address pool. IP addresses served
from the Public LAN pool bypass the NAT interface and are accessible from the WAN, allowing your computer to
have global address ability. To use the Public LAN feature, your ISP must support Multiple IP Address Passthrough.
NOTE:
1. By enabling the DHCP server for Public LAN, you automatically disable the DHCP Server for Private LAN. By
default, the Gateway’s Public LAN DHCP server is disabled, and the Private LAN DHCP server is enabled.
Whenever the Public LAN DHCP server is disabled, the Gateway will not issue public LAN IP addresses to
devices on your network.
2. Public LAN IP addresses are provided by your ISP. If you have questions about this feature, contact your ISP for
details.
3. By default, the Public LAN DHCP server is disabled. It is recommended that these settings not be changed unless
you are instructed to do so by your ISP.
Public LAN DHCP Server Enable
Click this check box to enable the Public LAN DHCP Server feature.
DHCP is an Internet standard that allows the Gateway to automatically
assign IP addresses to devices connected on the LAN. It is recommended
that you enable this for the public LAN. By default,
Public LAN DHCP
Server Enable
is enabled (checked).
Public LAN Enable
Click this check box to enable the Public LAN feature. This setting
enables the Public interface, which allows for a global subnet to exist
behind your Gateway. Westell recommends that you leave this feature
enabled. By default,
Public LAN Enable
is enabled (checked).
Public LAN IP Address
Displays your Gateway’s IP address.
Public LAN Subnet Mask
Displays the Public LAN Subnet Mask that is used to determine if an IP
address belongs to your local network.