Use Connection Sharing (Port NAT): Checking this box will cause all computers on the internal network to use the Location gateway’s IP address and some unused port of the Corente Services Gateway’s external interface as the source address and port numbers for any traffic destined for the selected partner. For Inline Locations, the WAN IP address of the Corente Services Gateway will be used for the LAN to Internet Access partner, and the LAN address will be used for the all other partners.

When packets return to the Corente Services Gateway from the partner, the destination address and port are converted back to the original source address and port number pair. The Corente Services Gateway will handle the WAN IP address to internal IP address conversions automatically.

This option is especially useful for Extranet connections, when you would like to hide your internal network from an untrusted partner.

Partner for Failover Only: Select this option to use the selected partner as a Backup connection to a site if the connection to the Primary partner at that same site should fail. This option allows hub sites with multiple Corente Services Gateways to use load balancing to manage application network traffic by allowing multiple Corente Services Gateways to support the same User Group and applications.

Specify Failover settings for this connection:. Failover is configured on the High Availability Tab of this form.

You can select this option to override the settings that you enter on the High Availability tab and define the failover behavior for the selected partner's connection to this Location only. For example, you may want to override the High Availability tab settings and make the Failover/Failback detection interval (in seconds) longer on this screen if this partner uses a slower Internet connection or DSL, where short connection outages are common. When this option is selected, the following fields will be enabled and the default entries can be modified:

Failover/Failback detection interval: The period of time that the partner will wait until it fails over to a Backup Location gateway after it detects that the connection to this Corente Services Gateway is down, and the period of time that the partner will wait after it detects that the connection to this Corente Services Gateway is back up before it reverts to this connection. The default is 30 seconds.

Packet Loss Threshold: The minimum percentage of packets that must be lost to cause the partner to detect a failed connection. The default is 100%.