Packet Tracer - Troubleshooting IPv4 and IPv6 Addressing
address allocation table
| equipment |
interface |
IPv4 address |
subnet mask |
Default gateway |
| IPv6 address / prefix |
||||
| R1 |
G0/0 |
10.10.1.1 |
255.255.255.0 |
N/A |
| G0/1 |
192.168.0.1 |
255.255.255.0 |
N/A |
|
| 2001:DB8:1:1::1/64 |
N/A |
|||
| G0/2 |
2001:DB8:1:2::1/64 |
N/A |
||
| S0/0/0 |
209.165.201.2 |
255.255.255.252 |
N/A |
|
| 2001:DB8:1:A001::2/64 |
N/A |
|||
| local link |
FE80::1 |
N/A |
||
| Dual stack server |
network card |
64.100.1.254 |
255.255.255.0 |
64.100.1.1 |
| 2001:DB8:CAFE:1::10/64 |
FE80::A |
|||
| DNS server |
network card |
64.100.1.254 |
255.255.255.0 |
64.100.1.1 |
| 2001:DB8:CAFE:1::10/64 |
FE80::A |
|||
| PC1 |
network card |
10.10.1.2 |
255.255.255.0 |
10.10.1.1 |
| PC2 |
network card |
192.168.0.2 |
255.255.255.0 |
192.168.0.1 |
| 2001:DB8:1:1::2/64 |
FE80::1 |
|||
| PC3 |
network card |
2001:DB8:1:2::2/64 |
FE80::1 |
|
Target
Part 1 : Troubleshooting the first problem
Part 2 : Troubleshooting the second problem
Part 3 : Troubleshooting the Third Problem
Topology
Scenes
You are a network technician at a company that has decided to migrate from IPv4 to IPv6 . During the transition period, they must support both protocols (dual stack). Three colleagues have called the help desk to resolve the issue, but have received limited assistance. The help desk has escalated the matter to you, and you are a level 2 support person. Your job is to determine the source of the problem and implement an appropriate solution.
Part 1 : Troubleshooting the first problem
A customer using PC1 complained that she could not access the dualstackserver.pka web page.
Step 1 : Review the detailed help desk ticket.
The Help Desk collects the following information from customers over the phone. Check if it is correct.
| Help Desk Ticket |
|
| Client identifier : PC1 |
|
| Problem : Unable to access dualstackserver.pka web page. |
|
| Details about the problem |
|
| Test : Does the computer have an IP address using ipconfig ? |
yes |
| Test : Can a computer contact its gateway using ping ? |
yes |
| Test : Can the computer contact the server using tracert ? |
yes |
| Test : Can the computer contact the server using nslookup ? |
no |
| Solution : Escalate to Level 2 Support. |
|
Step 2 : Consider possible causes of the failure.
a. Note the tests performed. If possible, discuss the possible scenarios that could cause this with your network technician (classmate).
b. Run the test multiple times if it helps visualize the problem. Simulation mode is available.
Step 3 : Come up with a solution to the problem.
Make a list of things that can be modified to solve the problem. Start with the solution that is most likely to work.
Step 4 : Implement the plan.
Try the most likely solution on the list. If it's already been tried, move on to the next solution.
Step 5 : Test solutions to the problem.
a. Repeat the test from the help desk ticket. Did it solve the problem?
b. If the problem persists, undo the change (if you are not sure it is correct) and return to step 4 .
Step 6 : Document the solution.
Document solutions to problems. Your notes will be very useful if you encounter the same problem again.
PC1 IPv4 DNS address is incorrect.
Part 2 : Troubleshooting the second problem
A customer using PC2 complained that he could not access the file on DualStackServer.pka (URL: 2001:DB8:CAFE:1::10 ).
Step 1 : Review the detailed help desk ticket.
The Help Desk collects the following information from customers over the phone. Check if it is correct.
| Help Desk Ticket |
|
| Client identifier : PC2 |
|
| Problem : Unable to access the FTP service at 2001:DB8:CAFE:1:10. |
|
| Details about the problem |
|
| Test : Does the computer have an IPv6 address using ipv6config ? |
yes |
| Test : Can a computer contact its gateway using ping ? |
yes |
| Test : Can the computer contact the server using tracert ? |
no |
| Solution : Escalate to Level 2 Support. |
|
Step 2 : Complete steps 2 through 5 in Part 1 to resolve the issue.
Step 3 : Document the solution.
Document solutions to problems. Your notes will be very useful if you encounter the same problem again.
DualStackServer.pka IPv6 gateway address is incorrect
Part 3 : Troubleshooting the Third Problem
A customer using PC3 complained that he could not communicate with PC2 .
Step 1 : Review the detailed help desk ticket.
The Help Desk collects the following information from users over the phone. Check if it is correct.
| Help Desk Ticket |
|
| 客户端标识符：PC3 |
|
| 问题：无法与 PC2 通信。 |
|
| 问题的相关详细信息 |
|
| 测试：计算机是否有使用 ipconfig 的 IP 地址？ |
是 |
| 测试：计算机是否有使用 ipv6config 的 IPv6 地址？ |
是 |
| 测试：计算机能否使用 ping 联系其 IPv4 网关？ |
否 |
| 测试：计算机能否使用 ping 联系其 IPv6 网关？ |
是 |
| 测试：计算机能否使用 tracert 联系 IPv4 客户端？ |
否 |
| 测试：计算机能否使用 tracert 联系 IPv6 客户端？ |
是 |
| 解决方案：上报到第 2 级支持。 |
|
第 2 步： 完成第 1 部分中的第 2 步到第 5 步来解决该问题。
第 3 步： 记录解决方案。
记录问题解决方案。如果您再遇到同样的问题，您的笔记就会非常有用。
PC2 IPv4 网关地址不正确
【实验链接】
链接：https://pan.baidu.com/s/1wC-UNjsqoK0QSR-YF7tOAQ?pwd=9000
提取码：9000
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