Networking Troubleshooting ConnectivityNetworking - Troubleshooting Connectivity
Troubleshooting Connectivity
Troubleshooting with Diagnostic Utilities
The Trace Route Utility (tracert/traceroute)
ping
The Destination Host Unreachable Message
The Request Timed Out Message
The Unknown Host Message
The Expired TTL Message
Troubleshooting with ping
ARP
The netstat Command
netstat e
netstat -a
netstat -r
netstat s
nbtstat
The ipconfig Command
ifconfig
The winipcfg Command
nslookup
dig
Interpreting Visual Indicators
LEDs on Networking Devices
LEDs on NICs and Other Devices
Troubleshooting Remote Connectivity
Troubleshooting Physical Connectivity
DSL
Cable Troubleshooting Procedures
Home Satellite Troubleshooting Procedures
Wireless Internet Access Troubleshooting Procedures
POTS Troubleshooting Procedures
Modem-Specific Troubleshooting
Troubleshooting Authentication Failure
Troubleshooting Protocol Configuration Problems
Troubleshooting Small Office/Home Office Router
Configuration
Troubleshooting
Identifying and Troubleshooting Client Connectivity Problems
Protocol Errors
Protocol-Specific Issues
Authentication
Permissions Errors
Physical Connectivity Errors
Troubleshooting Checklists
Troubleshooting Cabling Problems
Troubleshooting Operating System Connectivity
Troubleshooting Network Printing
Troubleshooting Data Access
Troubleshooting NICs
For anyone working with TCP/IP networks, troubleshooting connectivity is something that is simply going to have to be done. This tutorial identifies the tools that are used in the troubleshooting process and identifies scenarios in which these tools can be used.