Static Route

This chapter covers some aspects related to the protocols static route <ipv4net> and protocols static route6 <ipv6net> tools, features that allow users to manage and monitor the static routing.

The static route protocol can be used to fix network routes manually instead of using a dynamic routing protocol. In static routing, the routing table has pre-defined routes that are configured by a user, it is not based on network topology changes.

Configuration

The static route protocol can be configured either using protocols static route <ipv4net> or protocols static route6 <ipv6net> depending on the type of IP address.

In OSDx, the static route configuration allows various parameters to be set to fine-tune the protocol’s behavior.

An explanation of each configurable parameter is provided below:

  • blackhole: This is used to silently discard packets when matched. This parameter includes the distance value for this route.

  • dhcp-interface: DHCP interface that supplies the next-hop IP address for this static route. This parameter includes the distance value for this route, and an advisor to enable or disable the static route. It also includes a bfd parameter to support Bidirectional Forwarding Detection in static routing.

    • bfd: A network protocol that is used to detect faults between two routers or switches connected by a link. A multihop session (multihop), a BFD source IP for this route (source-ip) and a BFD profile name (profile) can be configured to improve the protocols’s behavior.

      Note

      DHCP interface is not available when using an IPv6 route.

  • interface: Defines the next hop interface. This parameter includes the distance value for this route, and an advisor to enable or disable the static route This ensures only legitimate routers can participate in the VRRP process.

  • next-hop: Defines the gateway IP address. This parameter can be configured with an interface based static route (interface) and with a next hop router VRF (next-hop-vrf). All three configurations (next hop, next hop and interface, next hop and next hop VRF) include the distance value for this route, and an advisor to enable or disable the static route. They also include a bfd parameter to support Bidirectional Forwarding Detection in static routing.

    • bfd: A network protocol that is used to detect faults between two routers or switches connected by a link. A multihop session (multihop), a BFD source IP for this route (source-ip) and a BFD profile name (profile) can be configured to improve the protocols’s behavior.

  • next-hop-vrf: Allows to create a leaked route with a nexthop in the specified VRF ID. This parameter includes the distance value for this route, and an advisor to enable or disable the static route.

Monitoring

To monitor the status and configuration of static routes, you can use the following commands:

  • protocols ip show route static or protocols ipv6 show route static to monitor static routes.

    admin@osdx$ protocols ip show route static
Codes: K - kernel route, C - connected, L - local, S - static,
      R - RIP, O - OSPF, I - IS-IS, B - BGP, E - EIGRP, N - NHRP,
      T - Table, v - VNC, V - VNC-Direct, A - Babel, F - PBR,
      f - OpenFabric, t - Table-Direct,
      > - selected route, * - FIB route, q - queued, r - rejected, b - backup
      t - trapped, o - offload failure

S>* 0.0.0.0/0 [1/0] via 192.168.212.2, eth0p0, weight 1, 00:03:12

  • protocols bfd show static route to monitor static routes using BFD and their peers.

    admin@osdx$ protocols bfd show static route
Showing BFD monitored static routes:

  Next hops:
    VRF default IPv4 Unicast:
        20.0.0.0/24 peer 192.168.212.8 (status: uninstalled)
        30.0.0.0/24 peer 192.168.212.9 (status: uninstalled)

    VRF default IPv4 Multicast:

    VRF default IPv6 Unicast:

Examples

Here you can find examples related to static routes.

Command Summary

Configuration commands

Operational commands