Dynamic routing by monitoring specific IP

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Nov 10th, 2009
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Please see diagram attached. Provided router C is the only router can be configured, is there any way for Router C to monitor the reachability of Router A, and then dynamically stopping redistributing the static route into OSPF, or changing the redistribution metric.



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rahulcapable Tue, 11/10/2009 - 21:34
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Hello Andrew,

What we can do is that we can track the reachability of router A IP address and configure in a way so tht static route will be there only till we have reachability to router A other wise static route will go down and hence will not be redistributed. For this to work router A Ip should be pingable from router C. Below is the config :

Make sure you remove the route ip route before u add the below config


track 100 rtr 100 reachability


ip route track 100


ip sla monitor responder

ip sla monitor 100

icmp-echo source-ip

frequency 5

ip sla schedule 100 life forever start-time now




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