Various other trademarks are held by their respective owners. WatchGuard and the WatchGuard logo are registered trademarks or trademarks of WatchGuard Technologies in the United States and other countries. The loopback interface IP address also enables load balancing when multiple paths are available. The loopback IP address and the attached subnets remain in the routing table even if one of the Firebox interfaces goes down. Because the loopback interface IP address does not depend on the link status of any interface, it is always up unless the attached router goes down. The loopback interface guarantees the Firebox can be contacted when there are multiple paths to the dynamic routing peer. In the dynamic routing configuration, use the loopback interface IP address, not the interface name. In the dynamic routing configuration, use the loopback interface IP address instead of a physical interface IP address. The IP address is added to the Secondary Networks list.Īfter you configure the loopback interface, you can use it for dynamic routing. In the loopback interface configuration, you can specify a primary IPv4 address, and you can add secondary networks. In the IP Address text box, type the IPv4 network IP address to add. A loopback interface can increase the stability of dynamic routing through a multi-WAN connection because it ensures the consistency of the next hop and avoids the potential for BGP routing oscillation.The Add a secondary network dialog box appears. To add a secondary IP address to the loopback interface: With the power of Loopback, its easy to pass audio from one application to another.In the IP Address text box, type the IPv4 address and subnet mask.(Optional) In the Interface Description text box type a description for this interface.To configure the primary loopback interface IP address:.
You must configure the loopback interface in the network settings before you can use it in the dynamic routing configuration. You cannot use the loopback interface in policies as the local gateway IP address of a BOVPN or BOVPN virtual interface, or as the destination in a static network route.
The loopback interface is supported in routed mode only. Fiber Optic loopback cable is different types bases on fiber connector types such as LC, SC, ST, FC, and also it has multimode and single mode fiber available. In the loopback interface configuration, you can specify a primary IPv4 address, and you can add secondary networks. Fiber optic loopback incorporates two fiber optic connectors one receiver and other transmitters which are plugged into the output and input port of the equipment respectively. A loopback interface can increase the stability of dynamic routing through a multi-WAN connection because it ensures the consistency of the next hop and avoids the potential for BGP routing oscillation. You can use the loopback interface for dynamic routing to multiple ISPs when your Firebox is configured with multi-WAN.
If your Firebox runs Fireware OS v11.11 or higher, you can enable a loopback interface on your Firebox, which is a virtual interface assigned to the Firebox that is not associated with a specific physical interface.
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