Configuring Load Balancing - NETGEAR ProSafe FVS336Gv2 Reference Manual

ProSafe Dual WAN Gigabit Firewall with SSL & IPsec VPN FVS336Gv2 Reference Manual
Once a rollover occurs, an alert will be generated (see <pdf>"E-Mail Notifications of Event
Logs and Alerts" on page 4-68). When the VPN firewall detects that the failed primary WAN
interface has been restored, it will automatically rollover again to the primary WAN interface.
Alternatively, you can manually force traffic back on the original primary WAN interface by
reapplying the Auto-Rollover settings on the WAN Mode screen.

Configuring Load Balancing

To use multiple ISP links simultaneously, select Load Balancing. In Load Balancing mode,
either WAN port will carry any outbound protocol unless protocol binding is configured. When
a protocol is bound to a particular WAN port, all outgoing traffic of that protocol will be
directed to the bound WAN port. For example, if the HTTPS protocol is bound to WAN1 and
the FTP protocol is bound to WAN2, then the VPN firewall will automatically route all
outbound HTTPS traffic from the computers on the LAN through the WAN1 port. All outbound
FTP traffic will be routed through the WAN2 port.
Protocol binding
Protocol binding addresses two issues:
• Segregation of traffic between links that are not of the same speed.
High volume traffic can be routed through the WAN port connected to a high speed link
and low volume traffic can be routed through the WAN port connected to the low speed
link.
• Continuity of source IP address for secure connections.
Some services, particularly HTTPS, will cease responding when a client's source IP
address changes shortly after a session has been established.
To configure the dual WAN ports for load balancing with protocol binding:
1. Select Network >WAN Settings from the menu, and click the WAN Mode tab.
2. In the Port Mode section, select Load Balancing.
3. Click view protocol bindings (if required). The WAN1 Protocol Bindings screen is
displayed.
Chapter 2: Connecting the VPN Firewall to the Internet | 25