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Fortinet MR1 User Manual

Page 564

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564

Preference - Specifies a preference value for the configured next hop.

Command Buttons

Add Route - Go to a separate page where a route can be created.

Configuring Router Route Preference

Use this panel to configure the default preference for each protocol (e.g. 60 for static routes,
170 for BGP). These values are arbitrary values in the range of 1 to 255 and are independent
of route metrics. Most routing protocols use a route metric to determine the shortest path
known to the protocol, independent of any other protocol.

The best route to a destination is chosen by selecting the route with the lowest preference
value. When there are multiple routes to a destination, the preference values are used to
determine the preferred route. If there is still a tie, the route with the best route metric will be
chosen. To avoid problems with mismatched metrics (i.e. RIP and OSPF metrics are not
directly comparable) you must configure different preference values for each of the protocols.

Configurable Data

Static - The static route preference value in the router. The default value is 1. The range is 1 to 255.

OSPF Intra - The OSPF intra route preference value in the router. The default value is 8. The range is
1 to 255. The OSPF specification (RFC 2328) requires that preferences must be given to the routes
learned via OSPF in the following order: intra < inter < type-1 < type-2.

OSPF Inter - The OSPF inter route preference value in the router. The default value is 10. The range is
1 to 255. The OSPF specification (RFC 2328) requires that preferences must be given to the routes
learned via OSPF in the following order: intra < inter < type-1 < type-2.

OSPF Type-1 - The OSPF type-1 route preference value in the router. The default value is 13. The
range is 1 to 255. The OSPF specification (RFC 2328) requires that preferences must be given to the
routes learned via OSPF in the following order: intra < inter < type-1 < type-2.

OSPF Type-2 - The OSPF type-2 route preference value in the router. The default value is 150. The
range is 1 to 255. The OSPF specification (RFC 2328) requires that preferences must be given to the
routes learned via OSPF in the following order: intra < inter < type-1 < type-2.

RIP - The RIP route preference value in the router. The default value is 15. The range is 1 to 255.

Non-Configurable Data