ITT 2015/Network module 1/Assignment Day 14
Contents
Network troubleshooting
Troubleshooting techniques
- Always start with a simple check for the user-claimed error!
- Make a plan / note for yourself:
- Draw a simple block diagram of the situation or use an existing diagram / documentation
- Write in short some lines of which technical facts you know about the error
- Write in short some lines of which technical facts you should remember to check or measure ( brainstorm / idea-catalog )
Troubleshooting skills
- Knowledge of all Technologies involved. ( How does it work? )
- Knowledge of troubleshooting tools. ( Ping, ipconfig, show ip route .... )
- Good at troubleshooting. ( Locating and correcting the fault in a logical way )
Troubleshooting exercises
Diagram for ITT1 network troubleshooting exercises:
Troubleshooting challenge number 1: Jens has no Internet!
Troubleshooting challenge number 2: Ole has no access to Internet!
Troubleshooting challenge number 3: Viggo from IT staff has no access to SYSLOG service!
Troubleshooting challenge number 4: Louise can't reach www.itt2015.com!
Troubleshooting challenge number 5: Lars can't use FTP service!
Troubleshooting challenge number 6: Jens has no Internet access - again!
Troubleshooting challenge number 7: Ole can't reach www.itt2015.com!
Troubleshooting challenge number 8: Viggo can't reach www.google.com!
Troubleshooting challenge number 9: Louise can't use TFTP-service!
Troubleshooting challenge number 10: Lars says that nobody can use www.itt2015.com!
Extra - and optional - Packet tracer troubleshooting practice
- Error 1 - Jens claims he can not use Internet
- Error 2 - Ole claims he can not use local FTP
- Error 3 - Pia claims her pc does not work
- Error 4 - Otto claims the intranet.ttc.com page does not work
- Error 5 - Jesper claims he can reach nothing but local FTP
- Error 6 - Paul claims the public FTP suddenly stopped working
- Error 7 - Pia claims the Internet is very slow
- Error 8 - Ole claims the LAN is dead
- Error 9 - Jens claims he can not surf the Internet
Extra tasks
Extra optional task: If you like the challenge of building networks in Cisco PacketTracer, try this Packet tracer activity!
Another optional task: Packet tracer activity 2