266DX-600/800APR 2002Edition 1.07.10. Troubleshooting from a PCTroubleshooting is an art of seeking out the cause of a problem and eliminating the problem by managing ofeliminating the cause. No matter what the problem is on your network, the OSI Reference Model serves asan excellent reference tool to help you locate the area of trouble.One of the simplest tools available, is the DOS command-line prompt from your Windows PC.Listed below are the most often used command-line prompts that you can use at the customer’s networkPC. Some commands are available as an option for checking with more detail.Note:Before taking corrective action, you must check the physical connections or wiring first.Command Sample PurposePing Ping 192. 168. 1. 30 Checking for physical connection between your PC and the targetdestination(192.168.1.30)Ipconfig /all Ipconfig /all Checking for current network configuration (Host Name, DNSserver, IP address, Subnet Mask, Default Gateway, MAC address,WINS etc)For Windows 95/98, please type “winipcfg” instead of Ipconfig/allTracert Tracert 192.168.2.245 Checking for the datagram route between your PC and the targetdestination(192.168.2.245)Netstat NetstatNetstat -nr Active connection listActive route for your subnet.All special assigned IP addresses are also shownNet view Net view Checking for the current file sharing Host NameNslookup Nslookup Checking for the DNS server IP address.This command is available for Windows NT only.