Static Routes

You might want to use static routes in the following cases:

• Your networks use an unsupported router discovery protocol.

• Your network is small and you can easily manage static routes.

• You do not want the traffic or CPU overhead associated with routing protocols.

• In some cases, a default route is not enough. The default gateway might not be able to reach the destination network, so you must also configure more specific static routes. For example, if the default gateway is outside, then the default route cannot direct traffic to any inside networks that are not directly connected to the threat defense device.

• You are using a feature that does not support dynamic routing protocols.

• Virtual routers use static routes to create route leaks. Route leaks enable flow of traffic from an interface of a virtual router to another interface in another virtual router. For more information, see Interconnecting Virtual Routers.