tailieunhanh - Lecture Routing Protocols and Concepts - Chapter 5: RIP version 1

This chapter help students: Describe the functions, characteristics, and operation of the RIPv1 protocol, configure a device for using RIPv1, verify proper RIPv1 operation, describe how RIPv1 performs automatic summarization,. | RIP version 1 Routing Protocols and Concepts – Chapter 5 Objectives Describe the functions, characteristics, and operation of the RIPv1 protocol. Configure a device for using RIPv1. Verify proper RIPv1 operation. Describe how RIPv1 performs automatic summarization. Configure, verify, and troubleshoot default routes propagated in a routed network implementing RIPv1. Use recommended techniques to solve problems related to RIPv1. RIPv1 RIP Characteristics A classful, Distance Vector (DV) routing protocol Metric = hop count Routes with a hop count > 15 are unreachable Updates are broadcast every 30 seconds RIPv1 RIP Message Format RIP header - divided into 3 fields Command field Version field Must be zero Route Entry - composed of 3 fields Address family identifier IP address Metric RIPv1 RIP Operation RIP uses 2 message types: Request message This is sent out on startup by each RIP enabled interface Requests all RIP enabled neighbors to send routing table Response message Message sent to | RIP version 1 Routing Protocols and Concepts – Chapter 5 Objectives Describe the functions, characteristics, and operation of the RIPv1 protocol. Configure a device for using RIPv1. Verify proper RIPv1 operation. Describe how RIPv1 performs automatic summarization. Configure, verify, and troubleshoot default routes propagated in a routed network implementing RIPv1. Use recommended techniques to solve problems related to RIPv1. RIPv1 RIP Characteristics A classful, Distance Vector (DV) routing protocol Metric = hop count Routes with a hop count > 15 are unreachable Updates are broadcast every 30 seconds RIPv1 RIP Message Format RIP header - divided into 3 fields Command field Version field Must be zero Route Entry - composed of 3 fields Address family identifier IP address Metric RIPv1 RIP Operation RIP uses 2 message types: Request message This is sent out on startup by each RIP enabled interface Requests all RIP enabled neighbors to send routing table Response message Message sent to requesting router containing routing table RIPv1 IP addresses initially divided into classes Class A Class B Class C RIP is a classful routing protocol Does not send subnet masks in routing updates RIPv1 Administrative Distance RIP’s default administrative distance is 120 Basic RIPv1 Configuration A typical topology suitable for use by RIPv1 includes: Three router set up No PCs attached to LANs Use of 5 different IP subnets Basic RIPv1 Configuration Router RIP Command To enable RIP enter: Router rip at the global configuration prompt Prompt will look like R1(config-router)# Basic RIPv1 Configuration Specifying Networks Use the network command to: Enable RIP on all interfaces that belong to this network Advertise this network in RIP updates sent to other routers every 30 seconds Verification and Troubleshooting Show ip Route To verify and troubleshoot routing Use the following commands: show ip route show ip protocols debug ip rip Verification and Troubleshooting show ip protocols .