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Name __________________________________________________________ Date ________________ Chapter 6 – Network Layer Study Guide Tips for success: While answering the questions read Chapter 6, review the summary, and complete the practice Quiz. After completion of this chapter, you should be able to: Explain how network layer protocols and services support communications across data networks. Explain how routers enable end-to-end connectivity in a small to medium-sized business network. Determine the appropriate device to route traffic in a small to medium-sized business network. Configure a router with basic configurations. 1. What does it mean for the IP protocol to be connectionless? No connection with the destination is established before packets are sent. 2. Give an example of a connection-oriented protocol: Ethernet 3. What is a hop? The route the packet takes to reach the destination host. 4. Complete Activity 6.1.3.4 – Ipv4 Header Fields 5. What is NAT and why is it necessary with IPv4? It translates private addresses to public 6. Complete Activity 6.1.4.6 – Ipv6 Header Fields 7. What is the purpose of a Host Routing Table? How can you view the Host Routing Table on your PC? Yes, it shows you the path that the packet takes. 8. Complete Activity 6.2.1.7 – Identify Elements of a Host Routing Table Entry 9. Complete Activity 6.2.2.7 – Identify Elements of a Router Routing Table Entry 10. What information is stored in the routers RAM? What will happen to this info when the router is turned off? The running config, if its saved its stored if its not saved it gets deleted. 11. What are the Management Ports on a router, what are their function? Console ports, to program the router manually 12. What are the Inband Router Interfaces, what are their function? Are the LAN and WAN interfaces configed with IP address to carry user traffic. 13. Complete Activity 6.3.1.8 – Identify Router Components 14. What happens when the router cannot find a startup configuration file during the boot process? It locks up looking for the file on the TFTP server. 15. Complete Activity 6.3.2.6 – The Router Boot Process 16. Briefly describe the output of the following show commands: a. Show version – shows the OS version b. Show ip interface brief – Shows the brief info for the IP interfaces c. Show ip route – Shows the route the packets took across a network d. Show run – Shows the running configuration 17. What are the three basic settings that must be configured on a computer to allow internet access? Default gateway, subnet mask, and IP address. Fill in the Brackets [ ] below to complete the basic router configuration on the Texas router. Use the table below to configure IP settings. Device Hostname Router0 Router1 Texas Virginia Interface F0/0 IP Address 172.16.0.1 172.18.0.1 Configuring Hostname and Passwords Router>[en] _______________________________________________ Router#configure terminal ___________________________________ Router(config)#[hostname] Texas ______________________________ Texas(config)#enable password cisco ___________________________ Texas(config)#enable secret class ______________________________ Texas(config)#line vty [0 4 ] ___________________________________ Texas(config-line)#password cisco _____________________________ Texas(config-line)#[login ] ___________________________________ Texas(config-line)#line [ con ] 0 _______________________________ Texas(config-line)#[ password ] cisco ___________________________ Texas(config-line)#login ______________________________________ Texas(config-line)#end ______________________________________ Configure Fast Ethernet 0/0 Interface Texas#configure terminal ____________________________________ Texas(config)#[ int ] f0/0 ___________________________________ Texas(config-if)#ip address [ 172.17.0.2 ] 255.255.0.0 _____________ Texas(config-if)#no [shut ] ___________________________________ Texas(config-if)#end ________________________________________ Configure Serial 0/0/0 Interface Texas#configure terminal ____________________________________ Texas([enable ])#interface s0/0/0 _____________________________ Texas(config-if)#[ ip add ] 172.17.0.1 [ 255.255.0.0 ] _____________ Interface S0/0/0 IP Address 172.17.0.1 172.17.0.2 Subnet Mask 255.255.0.0 255.255.0.0 TYPE DCE DTE Texas(config-if)#clock rate 64000 _____________________________ Texas(config-if)#[no ] shutdown ______________________________ Texas(config-if)#end ________________________________________ Save Configuration Texas# copy {run] start (Hit: ENTER) ___________