Packet Tracer 6.2 2.4



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Last Updated on March 15, 2018 by

6.2.2.4 Packet Tracer – Configuring Trunks

Packet Tracer – Configuring Trunks (Answer Version)

Answer Note: Red font color or Gray highlights indicate text that appears in the Answer copy only.

Topology

Addressing Table

DeviceInterfaceIP AddressSubnet MaskSwitch PortVLAN
PC1NIC172.17.10.21255.255.255.0S2 F0/1110
PC2NIC172.17.20.22255.255.255.0S2 F0/1820
PC3NIC172.17.30.23255.255.255.0S2 F0/630
PC4NIC172.17.10.24255.255.255.0S3 F0/1110
PC5NIC172.17.20.25255.255.255.0S3 F0/1820
PC6NIC172.17.30.26255.255.255.0S3 F0/630

Objectives

Part 1: Verify VLANs

Part 2: Configure Trunks

Background

Trunks are required to pass VLAN information between switches. A port on a switch is either an access port or a trunk port. Access ports carry traffic from a specific VLAN assigned to the port. A trunk port by default is a member of all VLANs; therefore, it carries traffic for all VLANs. This activity focuses on creating trunk ports, and assigning them to a native VLAN other than the default.

Part 1: Verify VLANs

Step 1: Display the current VLANs.

  1. On S1, issue the command that will display all VLANs configured. There should be ten VLANs in total. Notice how all 24 access ports on the switch are assigned to VLAN 1.
  2. On S2 and S3, display and verify all the VLANs are configured and assigned to the correct switch ports according to the Addressing Table.

Step 2: Verify loss of connectivity between PCs on the same network.

Although PC1 and PC4 are on the same network, they cannot ping one another. This is because the ports connecting the switches are assigned to VLAN 1 by default. In order to provide connectivity between the PCs on the same network and VLAN, trunks must be configured.

Part 2: Configure Trunks

Step 1: Configure trunking on S1 and use VLAN 99 as the native VLAN.

  1. Configure G0/1 and G0/2 interfaces on S1 for trunking.
    • S1(config)# interface range g0/1 – 2
    • S1(config-if)# switchport mode trunk
  2. Configure VLAN 99 as the native VLAN for G0/1 and G0/2 interfaces on S1.
    • S1(config-if)# switchport trunk native vlan 99
    • The trunk port takes about a minute to become active due to Spanning Tree. Click Fast Forward Time to speed the process. After the ports become active, you will periodically receive the following syslog messages:
    • %CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on GigabitEthernet0/2 (99), with S3 GigabitEthernet0/2 (1).
    • %CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on GigabitEthernet0/1 (99), with S2 GigabitEthernet0/1 (1).
    • You configured VLAN 99 as the native VLAN on S1. However, S2 and S3 are using VLAN 1 as the default native VLAN as indicated by the syslog message.
    • Although you have a native VLAN mismatch, pings between PCs on the same VLAN are now successful. Why? Pings are successful because trunking has been enabled on S1. Dynamic Trunking Protocol (DTP) has automatically negotiated the other side of the trunk links. In this case, S2 and S3 have now automatically configured the ports attached to S1 as trunking ports.

Step 2: Verify trunking is enabled on S2 and S3.

On S2 and S3, issue the show interface trunk command to confirm that DTP has successfully negotiated trunking with S1 on S2 and S3. The output also displays information about the trunk interfaces on S2 and S3.

Which active VLANs are allowed to cross the trunk? 1, 10, 20, 30, and 99.

Step 3: Correct the native VLAN mismatch on S2 and S3.

  1. Configure VLAN 99 as the native VLAN for the appropriate interfaces on S2 and S3.
  2. Issue show interface trunk command to verify the correct native VLAN configuration.

Step 4: Verify configurations on S2 and S3.

  1. Issue the show interface interface switchport command to verify that the native VLAN is now 99.
  2. Use the show vlan command to display information regarding configured VLANs. Why is port G0/1 on S2 no longer assigned to VLAN 1? Port G0/1 is a trunk port and trunks ports are not displayed.

Suggested Scoring Rubric

Packet Tracer scores 80 points. The three questions in Step 1, 2 and 4 are worth 20 points.

2.3.2.3 Packet Tracer – Troubleshooting Static Routes

From year to year, Cisco has updated many versions with difference questions. The latest version is version 6.0 in 2018. What is your version? It depends on your instructor creating your class. We recommend you to go thought all version if you are not clear. While you take online test with netacad.com, You may get random questions from all version. Each version have 1 to 10 different questions or more. After you review all questions, You should practice with our online test system by go to 'Online Test' link below.

Version 5.02Version 5.03Version 6.0Online Assessment
Chapter 2 ExamChapter 2 ExamChapter 2 ExamOnline Test
Next Chapter
Chapter 3 ExamChapter 3 ExamChapter 3 ExamOnline Test
2.2.2.4 Packet Tracer – Configuring IPv4 Static and Default Routes
2.2.4.4 Packet Tracer – Configuring IPv6 Static and Default Routes
2.2.5.5 Packet Tracer – Configuring Floating Static Routes
2.3.2.3 Packet Tracer – Troubleshooting Static Routes

Packet Tracer – Troubleshooting Static Routes (Answer Version)

Answer Note: Red font color or Gray highlights indicate text that appears in the Answer copy only.

Topology

2.3.2.3 Packet Tracer – Troubleshooting Static Routes

Addressing Table

DeviceInterfaceIPv4 AddressSubnet MaskDefault Gateway
R1G0/0172.31.1.1255.255.255.128N/A
S0/0/0172.31.1.194255.255.255.252N/A
R2G0/0172.31.0.1255.255.255.0N/A
S0/0/0172.31.1.193255.255.255.252N/A
S0/0/1172.31.1.197255.255.255.252N/A
R3G0/0172.31.1.129255.255.255.192N/A
S0/0/1172.31.1.198255.255.255.252N/A
PC1NIC172.31.1.126255.255.255.128172.31.1.1
PC2NIC172.31.0.254255.255.255.0172.31.0.1
ServerNIC172.31.1.190255.255.255.192172.31.1.129

Objectives

Part 1: Locate the Problem

Part 2: Determine the Solution

Part 3: Implement the Solution

Part 4: Verify That the Issue Is Resolved

Packet

Background

In this activity, PC1 reports that they cannot access resources on the server. Locate the problem, decide on an appropriate solution and resolve the issue.

Packet

Part 1: Locate the Problem

PC1 cannot access files on the server. Locate the problem using the appropriate show commands on all routers and any troubleshooting commands on the PCs that you have learned from previous chapters.

What are some of the troubleshooting commands on routers and PCs that can be used to identify the source of the problem? show ip route, show run, traceroute, tracert, and ping.

Part 2: Determine the Solution

Tracer

After you have located the problem that is preventing PC1 from accessing files on the server, fill in the table below.

Packet Tracer 6.2.2.4 Youtube

ProblemSolution
The static routes on R2 are both using the incorrect next-hop address.Remove the static routes and replace them with the correct next-hop router address.
There is no route listed in R3 for the R1 LAN.Add a static route on R3 to the R1 LAN.

Part 3: Implement the Solution

  1. If there are any misconfigured static routes, you must remove them before the correct ones can be added to the configuration.
    • R2(config)# no ip route 172.31.1.0 255.255.255.128 172.31.1.198
    • R2(config)# no ip route 172.31.1.128 255.255.255.192 172.31.1.194
    • R2(config)# ip route 172.31.1.0 255.255.255.128 172.31.1.194
    • R2(config)# ip route 172.31.1.128 255.255.255.192 172.31.1.198
  2. Add any missing static routes by configuring directly attached routes.
    • R3(config)# ip route 172.31.1.0 255.255.255.128 s0/0/1

Part 4: Verify That the Issue Is Resolved

  1. Ping from PC1 to the server.
  2. Open a web connection to the server. After you correctly identify and implement the correct solution to the problem, you will receive a message in the web browser when you connect to the server.

Packet Tracer 6.2.2.4 Answers

From year to year, Cisco has updated many versions with difference questions. The latest version is version 6.0 in 2018. What is your version? It depends on your instructor creating your class. We recommend you to go thought all version if you are not clear. While you take online test with netacad.com, You may get random questions from all version. Each version have 1 to 10 different questions or more. After you review all questions, You should practice with our online test system by go to 'Online Test' link below.

Packet Tracer 6.2 2.4
Version 5.02Version 5.03Version 6.0Online Assessment
Chapter 2 ExamChapter 2 ExamChapter 2 ExamOnline Test
Next Chapter
Chapter 3 ExamChapter 3 ExamChapter 3 ExamOnline Test
2.2.2.4 Packet Tracer – Configuring IPv4 Static and Default Routes
2.2.4.4 Packet Tracer – Configuring IPv6 Static and Default Routes
2.2.5.5 Packet Tracer – Configuring Floating Static Routes
2.3.2.3 Packet Tracer – Troubleshooting Static Routes

Suggested Scoring Rubric

Activity SectionPossible PointsEarned Points
Part 1: Locate the Problem2
Part 2: Determine the Solution8
Packet Tracer Score90
Total Score100