Address Rollup Configuration Instance

Experimental requirements:

1. The entire network runs the OSPF protocol, R4 runs the RIP protocol, so the R3 is configured with OSPF and RIP protocols,

2. And through Routing redistribution Experiment Network interworking

3. Simulating an external network segment using the Lookback interface

4. Reduce routing entries by rollup due to a large number of entries

   R2 's Lookback address is published in OSPF, and R4 's lookback is sent in RIP

5. The topology diagram is as follows:

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The ROUTER2 is configured as follows

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The configuration of the Router3 is more complex because one of the interfaces of R3 is in OSPF and the other interface is in RIP and requires a routing redistribution configuration

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Because Router4 is in the RIP protocol, start the RIP protocol

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View the routing table for four routers separately and test connectivity

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The route summary in Router1, as the name implies, is the aggregation of addresses between zones, which is typically used on routers across domains

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A routing rollup in Router3 that allows a set of external addresses to be summarized as a summary address, which is typically configured on an autonomous system boundary router by reallocating this type of route rollup into an OSPF domain

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When the route rollup is complete, view the information in the ROUTER1 and Router3 routing tables, respectively

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Address Rollup Configuration Instance