ProSafe Quad WAN Gigabit Firewall FR538G Reference Manual
2-12
Connecting the FR538G
v1.0, November 2007
–
The Router uses NAT to select the correct PC (on your LAN) to receive any incoming
data.
–
If you only have a single Internet IP address, you MUST use NAT.
NAT is the default setting.
•
Classical Routing.
In this mode, the Router performs Routing, but without NAT. To gain
Internet access, each PC on your LAN must have a valid Internet IP address.
If your ISP has allocated many IP addresses to you, and you have assigned one of these
addresses to each PC, you can choose Classical Routing. Or, you can use Classical Routing for
routing private IP addresses within a campus environment. Otherwise, selecting this method
will not allow Internet access through this Router.
To learn the status of the WAN ports, you can view the Router Status page (see
Configuration and System Status” on page 5-23
) or look at the LEDs on the front panel (see
“Router Front Panel” on page 1-5
Setting Up Auto-Rollover Mode
If you want to use a redundant ISP link for backup purposes, ensure that the backup WAN port has
already been configured. Then you select the WAN port that will act as the primary link for this
mode and configure the
WAN Failure Detection Method
to support Auto-Rollover.
When the router is configured in Auto-Rollover Mode, the router uses the
WAN Failure
Detection Method
to check the connection of the primary link at regular intervals to detect router
status. Link failure is detected in one of the following ways:
•
By using DNS queries to a DNS server, or
•
By a Ping to an IP address.
For each WAN interface, DNS queries or Ping requests are sent to the specified IP address. If
replies are not received, the corresponding WAN interface is considered down.
To configure the quad WAN ports for Auto-Rollover
1.
Select
Network Configuration
from the primary menu and
WAN Mode
from the secondary
menu. The WAN Mode screen will display.
2.
In the
Port Mode
section, check the
Auto-Rollover Using WAN port
radio box.
3.
Selection the WAN port that will act as the primary link for this mode from the pull-down
menu.
4.
From the
WAN Failure detection Method
section, select the detection failure method radio
box from one of the following choices:
Summary of Contents for ProSafe Quad WAN FR538G
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