Configure Load Balancing And Optional Protocol Binding - NETGEAR UTM5 Reference Manual

ProSecure Unified Threat Management (UTM) Appliance
Table 139. Failure detection method settings (continued)
Setting
Ping
Retry Interval is
Failover after
Note: The default time to roll over after the primary interface fails is
2 minutes. The minimum test period is 30 seconds, and the
minimum number of tests is 4.
5. Click Apply to save your settings.
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,
the DSL interface or any WAN interface carries any outbound protocol unless protocol
binding is configured.
When a protocol is bound to a particular interface, all outgoing traffic of that protocol is
directed to the bound interface. For example, if the HTTPS protocol is bound to the DSL
interface and the FTP protocol is bound to the WAN1 interface, then the UTM9S
automatically routes all outbound HTTPS traffic from the computers on the LAN through the
DSL interface. All outbound FTP traffic is routed through the WAN1 interface.
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 DSL interface connected to a high-speed
link, and low-volume traffic can be routed through a WAN interface connected to a
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.
Description
Pings are sent to a server with a public IP address. This server should not reject the
ping request and should not consider ping traffic to be abusive.
IP Address The IP address of the ping server.
The retry interval in seconds. The DNS query or ping is sent periodically after every
test period. The default test period is 30 seconds.
The number of failover attempts. The primary WAN interface is considered down
after the specified number of queries have failed to elicit a reply. The backup
interface is brought up after this situation has occurred. The failover default is
4 failures.
on page 438).
xDSL Module for the UTM9S
533
Configure Logging, Alerts, and