Netgear ProSafe FVS124G User Manual Page 60

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Reference Manual for the ProSafe VPN Firewall 25 with 4 Gigabit LAN and Dual WAN Ports
4-16 Connecting the FVS124G to the Internet
202-10085-01, March 2005
Rollover Setup
Perform the following steps to configure the dual WAN ports for rollover:
1. Click the WAN Mode link directly under Setup on the upper left of the main menu to invoke
the WAN Mode Auto-Rollover screen shown in Figure 4-6.
Figure 4-6: WAN Mode screen for auto-rollover
Fill out the screen using the following parameter definitions:
Detection of WAN failure—WAN failure is detected using DNS queries to the DNS
server. For each WAN interface, DNS queries are sent to the configured DNS server. If the
DNS replies are not received, the corresponding WAN interface is considered down.
ISP DNS Server—In this case, DNS queries are sent to the DNS server configured on
the WAN ISP pages (see “Step 3: Configure the Internet Connections to Your ISPs
(Required)” on page 4-8).
Public DNS Server—The user is also given an option, to enter any Public DNS
server.DNS queries are sent to this server through the WAN interface being
monitored.
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