Term
| When was the first standard for RIP written? |
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Definition
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Term
| What are some of the key characteristics of RIP? |
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Definition
-Distance Vector Routing Protocol
-Use Hop count as its only metric for path selection.
-Advertised routes with hop counts greater than 15 are unreachable messages are broadcast every 30 seconds. |
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Term
| What information does RIPv1 not send in its updates? |
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Definition
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Term
| What is the default AD distance for RIP? |
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Definition
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Term
| What does the default AD mean when you compare RIP and all othe routing protocols? |
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Definition
| RIP is the least-preferred routing protocol. |
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Term
| What are the commands to display AD? |
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Definition
R1#show ip route
R1#show ip protocols |
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Term
| What is the first command word used to enable any routing protocol? |
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Definition
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Term
| What command is used to enable RIP as the routing protocol? |
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Definition
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Term
| What is the prompt after you enable the routing protocol? |
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Definition
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Term
| Is the routing protocol started after you enter the router rip command? |
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Definition
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Term
| What is the command to remove RIP as the routing protocol? |
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Definition
| R1(config-rotuer)#no router rip |
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Term
| What are the two pieces of information that the routing protocol needs to begin operation? |
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Definition
-Local interfaces
-Locally connected networks |
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Term
| What command is used to tell the routing porotocol the directly connected networks? |
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Definition
| R1(config-router)#network [ip address] |
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Term
| What is the syntax for the network command? |
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Definition
| R1(config-router)#network directly-connected-classful-network-address |
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Term
| What two things does the network command accomplish? |
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Definition
-Enables RIP on all interfaces that belong to a specific network.
-Advertises the specific network in RIP routing
-Updates sent to other routers every 30 seconds |
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Term
| What happens if you enter a classless subnet in RIPv1? |
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Definition
| The IOS automatically converts it to a classful network address. |
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Term
| If you enter a host address instead of network address in the network command, what happens? |
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Definition
| The IOS corrects the input and enters the classful network address. |
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Term
| What are the first two commands that should be used to troubleshoot routing? |
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Definition
R1#show ip route
R1#show ip protocols |
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Term
| What command will display routing information as it happens? |
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Definition
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Term
| What should you check before enabling a routing protocol? |
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Definition
| Make sure all necessary interfaces are up and up with the show ip interface brief command. |
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Term
| What command will display the routing table? |
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Definition
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Term
| What RIP parameters can be confirmed with the show ip protocols command? |
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Definition
-RIP routing is configured
-The correct interfaces send and receive RIP updates
-The router advertises the correct networks
-RIP neighbors are sending updates |
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Term
| What are three most common problems with RIP configuration? |
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Definition
-Incorrect network statement config
-Missing network statement config
-Configuration of discontiguous subnets in a classful environment. |
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Term
| What command will display RIP routing updates as they are sent and received? |
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Definition
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Term
| What two commandsw will turn off the RIP routing debugging process? |
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Definition
R1#no debug ip rip
R1#undebug all |
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Term
| What are the ways in which unnecessary routing updates impact a network? |
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Definition
-Bandwidth is waisted
-All devices on the LAN must process the updates
-Advertising updates on a broadcast network is a security risk. |
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Term
| List the command that prevents the transmission of routing updates through a router interface but still allows that network to be advertised to other rotuers? |
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Definition
| R1(config-router)#passive-interface interface-type interface-number |
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Term
| What does RIP do if you enter a classless ip address after the network command? |
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Definition
| The IOS will change the configuration to reflect the correct, classful configuration. |
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Term
| What happens when an update reaches the boundary rotuer? |
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Definition
| Boundary routers summarize RIP subnets from one major network to the other, updates for the networks will automatically be summarized when sent out the interface. |
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Term
| What are the two rules that govern RIPv1 updates? |
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Definition
-If a routing update and the interface on which it is received belong to the same major network, the subnet mask of the interface is applied to the network in the routing update.
-If a routing update and the interface on which is received belongs to different major networks, the classful subnet mask of the network is applied to the network in the routing table. |
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Term
| What subnets are RIPv1 routers limited to? |
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Definition
| They are limited to using the subnet mask for all subnets with the same classful network. |
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Term
| What are the advantages of automatic summarization? |
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Definition
-Smaller routing updates sent and received uses less bandwidth fro routing updates.
-Using a single route results in a faster lookup process in the routing table. |
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Term
| What is the result of auto summarization of routes whe nthe network tries to converge? |
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Definition
| Discontiguous topologies do not converge with RIPv1. |
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Term
| What is the command to send all traffic to the port that goes to the internet? |
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Definition
| R1(config)#ip route 0.0.0.0 0.0.0.0 s0/0/1 |
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Term
| What command can you enter to specify that this router is to originate default information, by propagating the static default route in RIP updates? |
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Definition
| R1(config-router)#default-information originate |
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Term
| Why would you automatically distribute a default route instead of configuring it manually? |
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Definition
| A static route is not scalable. |
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