Lab 5-1 Redistribution Between RIP and OSPF  

Friday, November 14, 2008



















Learning Objectives

• Review configuration and verification of RIP and OSPF
• Configure passive interfaces in both RIP and OSPF
• Filter routing updates using distribute lists
• Redistribute static routes into RIP
• Redistribute RIP routes into OSPF
• Redistribute OSPF routes into RIP
• Originate a default route into OSPF
• Set a default seed metric
• Modify OSPF external network types
• Configure summary addresses

Scenario

Two online booksellers, Example.com and Example.net, have merged and now need a short-term solution to interdomain routing. Since these companies
provide client services to Internet users, it is essential to have minimal downtime during the transition. Example.com is a small firm running RIP, while Example.net has a somewhat larger network running OSPF. The diagram identifies R2 as the router that will bridge the two networks. Since it is imperative that the two booksellers continuously deliver Internet services, you should bridge these two routing domains without interfering with each router’s path through its own routing domain to the Internet. The CIO determines that it is preferable to keep the two protocol domains pictured in the diagram during the transition period, because the network engineers on each side need to understand the other’s network before deploying a long-term solution. Redistribution will not be your long-term solution, but will suffice as a short-term solution. Configure the topology above in a lab to verify the short-term solution. In this
scenario, R1 and R2 are running RIPv2, but the 172.16.23.0/24 network between R2 and R3 is running OSPF. You need to configure R2 to enable
these two routing protocols to interact to allow full connectivity between all networks.

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