From the course: Cisco CCNP ENARSI v1.1 (300-410) Cert Prep: 1 Layer 3 Technologies

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Route redistribution with route maps

Route redistribution with route maps

From the course: Cisco CCNP ENARSI v1.1 (300-410) Cert Prep: 1 Layer 3 Technologies

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Route redistribution with route maps

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- [Instructor] There are times when we're doing route redistribution, where we don't necessarily want to redistribute every single route from one autonomous system to another. Maybe within EIGRP, we've got one route that we want to approve, or let it through into OSPF, but there's another route that we want to reject. We don't want it to be redistributed. So let's see exactly how we can filter a route using the topology that we've been building on in this module. Let's say, for example, for some reason, we don't want the 192.168.2.0/24 network, which lives between R3, and SW4, let's say for some reason we don't want that network to be redistributed into OSPF. One way that we can block that route from being redistributed, is to use a route map. So let's go back out to our live topology, and we'll go to R2, we'll create an access-control list that's going to match that network, and then we'll apply that ACL to a route…

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