Re: Static Route "Permanent" Parameter Usage

Ali Hazim · ‎10-12-2019

Hi,
Is There Any Scenario To Use The "Permanent" Parameter At The End Of a Static Route Command

ip route .... permanent

marce1000 · ‎10-12-2019

- https://community.cisco.com/t5/routing/static-route-with-permanent/td-p/630673

- https://learningnetwork.cisco.com/thread/78181

Google is our friend....

M

-- ' 'Good body every evening' ' this sentence was once spotted on a logo at the entrance of a Weight Watchers Club !

paul driver · ‎10-12-2019

Hello

One good example would apply it to a default static route on a stub router - A router that has only one way of forwarding all traffic outwards to - As such this route and its defined next hop should really never change so you could make it a permanent route

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Kind Regards
Paul

Richard Burts · ‎10-12-2019

Paul gives a good example of a scenario where it would be appropriate to use the permanent parameter on a static route. Another scenario might be where you were running BGP and had a network that you want to advertise in BGP. Part of the requirement for advertising a route in BGP is that the precise same route (same address, same mask) must appear in the IP routing table. Many of us might use a static route to null 0 for that route. But it would also be appropriate to configure a static route with the permanent parameter which would guarantee that the route was always present in the routing table.

HTH

Rick

HTH

Rick