Overview of Static Routing

Static routes can be used to specify desired routes, backup routes, or routes of last resort. Static routing can help provide load balancing.

Static routes are manually configured entries in the existing IPv6 routing table. In setting up static routes, you can specify several types of destinations:

  • Destination network, using an IP address and network mask or prefix length
  • Default network route
  • Next-hop router
  • Next-hop tunnel gateway
  • Next-hop network protocol type
  • Ethernet interface, typically used for directly attached destination networks
  • Virtual interface
  • Null interface

Note: ICX 7150 and devices do not provide tunnel gateway next-hop options.

You can influence the preference a route is given in the following ways:

  • Setting a route metric higher than the default metric
  • Giving the route an administrative distance

Static routes can be configured to serve as any of the following:

  • Default routes
  • Primary routes
  • Backup routes
  • Null routes for intentionally dropping traffic when the desired connection fails
  • Alternative routes to the same destination to help load balance traffic