Configure Load Balancing And Optional Protocol Binding - NETGEAR UTM9S Reference Manual

Note: You can configure the UTM to generate a WAN status log and email
this log to a specified address (see
Event Notifications

Configure Load Balancing and Optional Protocol Binding

To use multiple ISP links simultaneously, configure load balancing. In load balancing mode,
any WAN port carries any outbound protocol unless protocol binding is configured.
When a protocol is bound to a particular WAN port, all outgoing traffic of that protocol is
directed to the bound WAN port. For example, if the HTTPS protocol is bound to the WAN1
port and the FTP protocol is bound to the WAN2 port, then the UTM automatically routes all
outbound HTTPS traffic from the computers on the LAN through the WAN1 port. All outbound
FTP traffic is routed through the WAN2 port.
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, cease to respond when a client's source IP address
changes shortly after a session has been established.
Configure Load Balancing (Multiple WAN Port Models)

To configure load balancing:
1. Select Network Config > WAN Settings > WAN Mode. The WAN Mode screen
displays:
ProSecure Unified Threat Management (UTM) Appliance
on page 422).
Manually Configuring Internet and WAN Settings
Configure Logging, Alerts, and
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