Download File - Cisco Networking Fundamentals

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:
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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) ___________