Windows network diagnostic/troubleshooting commands.

1. ipconfig This command will allows you to get your system IP information.

2. ipconfig /all Using this command you can get the system Ethernet full information related to IP V4, V6, MAC Address etc.

3. ipconfig /release If you have DHCP enabled then you can use this command to release your Ethernet IP.

4. ipconfig /renew This command is used to renew or get an IP address from the DHCP server

5. netstat This command is used to check the active connection with your windows and the ports on they are listening.

6. nslookup DomainName (Ex. nslookup google.com) With nslookup command you can get an IP address of the respective domain or site.

7. PING IPAddress  or domain name (Ex. Ping 192.168.1.1 or ping google.com) If you want to check the ping status of your domain or an IP address you can use this command and you can check that  the host alive or not.

8. tracert domain name or IP address (Ex. Ping 192.168.1.1 or ping google.com) 
This command provide you the full trace from source to destination that how many network hops are there between source to destination and latency on the particular host for sending packets.

9. arp -a With arp command you can get an information about connected neighbour devices either it is computer or router or any other device having an ip address. you can search more on web about this command.

10. Telnet IPAddress PortNumber ( telnet 192.168.1.1 8080 ) You can telnet any port with IP address with this command and can verify whether the the IP is listening on the desire port or not.

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