This document describes the basic concept of static routes. A problem scenario is used in order to demonstrate the circumstances in which it becomes desirable to specify the interface through which the next hop IP address can be reached when you configure a static route. Failure to do so can lead to unwanted behavior and a broken network state. Static routes are used for a variety of reasons and are often used when there is no dynamic route to the destination IP address, or when you want to override the dynamically learned route. By default, static routes have an administrative distance of one, which gives them precedence over routes from any dynamic routing protocol. When you increase the administrative distance to a value greater than that of a dynamic routing protocol, the static route can be a safety net in the event that dynamic routing fails.
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Static routing is a form of routing that occurs when a router uses a manually-configured routing entry, rather than information from a dynamic routing traffic.
Static routing and dynamic routing are not mutually exclusive. Both dynamic routing and static routing are usually used on a router to maximise routing efficiency and to provide backups in the event that dynamic routing information fails to be exchanged.
Static routing can also be used in stub networks , or to provide a gateway of last resort. Static routing, if used without dynamic routing, has the following advantages: [ citation needed ]. Static routing can have some potential disadvantages: .
To route IP traffic destined for the network In most Linux distributions, a static route can be added using the iproute2 command. The following is typed at a terminal:- .
Enterprise-level Cisco routers are configurable using the Cisco IOS command line, rather than a web management interface. The commands to add a static route are as follows: . Network configurations are not restricted to a single static route per destination: .
The administrative distance can be manually re configured so that the static route can be configured as a backup route, to be used only if the dynamic route is unavailable. From Wikipedia, the free encyclopedia.
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Configuration du routage ospf - routeur Cisco
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