Netgear FVS336G-100NAS Reference Manual - Page 40

Configuring Auto-Rollover Mode, WAN Failure Detection Method, WAN Failure, Detection Method

Page 40 highlights

ProSafe Dual WAN Gigabit Firewall with SSL & IPsec VPN FVS336G Reference Manual To learn the status of the WAN ports, you can view the Router Status page (see "Monitoring VPN Tunnel Connection Status" on page 9-15) or look at the LEDs on the front panel (see "Front Panel Features" on page 1-6). Configuring Auto-Rollover Mode To use a redundant ISP link for backup purposes, ensure that the backup WAN port has already been configured. Then 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 VPN firewall is configured in Auto-Rollover Mode, it uses the selected 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 sending DNS queries to a DNS server, or • By sending a Ping request to an IP address, or • None (no failure detection is performed). From each WAN interface, DNS queries or Ping requests are sent to the specified IP address. If replies are not received, after a specified number of retries, the corresponding WAN interface is considered down. To configure the dual WAN ports for Auto-Rollover 1. Select Network > WAN Settings from the main menu and click the WAN Mode tab. The WAN Mode tab is displayed 2-14 Connecting the FVS336G to the Internet v1.0, October 2007

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ProSafe Dual WAN Gigabit Firewall with SSL & IPsec VPN FVS336G Reference Manual
2-14
Connecting the FVS336G to the Internet
v1.0, October 2007
To learn the status of the WAN ports, you can view the Router Status page (see
“Monitoring VPN
Tunnel Connection Status” on page 9-15
) or look at the LEDs on the front panel (see
“Front Panel
Features” on page 1-6
).
Configuring Auto-Rollover Mode
To use a redundant ISP link for backup purposes, ensure that the backup WAN port has already
been configured. Then 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 VPN firewall is configured in Auto-Rollover Mode, it uses the selected
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 sending DNS queries to a DNS server, or
By sending a Ping request to an IP address, or
None (no failure detection is performed).
From each WAN interface, DNS queries or Ping requests are sent to the specified IP address. If
replies are not received, after a specified number of retries, the corresponding WAN interface is
considered down.
To configure the dual WAN ports for Auto-Rollover
1.
Select Network > WAN Settings from the main menu and click the WAN Mode tab. The WAN
Mode tab is displayed