ipconfig & ping
APIPA (Automatic Private IP Addressing)
A static IP address (169.254.x.x) automatically assigned by DHCP, cannot connect to the Internet with this IP address
Ping Own IP Address
Checks connection to own computer
ipconfig /release
Drops valid IP address
ping 8.8.8.8
Google's DNS server (if this fails, there's no connection to the Internet)
Ping Default Gateway
How to check connectivity on local network (connection to router)
ipconfig /all
Pulls ALL info about connection
ipconfig /renew
Pulls new IP address; you can see: IPv4, subnet mask, gateway, and DNS server
ping
Sends a message from one computer to another to check whether it is reachable and active
ipconfig /flushdns
When 2 computers used to be able to communicate but one of their IP addresses change/conflicts (i.e. two entities sharing an IP address), this reestablishes the connection between the 2 computers
ipconfig
Windows command that shows the IP configuration settings on a PC
loopback address IPv4
ping 127.0.0.1 or ping loopback -4
loopback address IPv6
ping ::1 or ping loopback -6