ipconfig commands

ipconfig /all

Displays TCP/IP configuration info for each network adapter

ipconfig /flushdns

clears the name resolver cache, might solve problem when the browser cannot find a host on the internet

ipconfig /displaydns

displays info about name resolutions that windows currently holds in the DNS resolver cache

ipconfig /? or -?

help text

ipconfig /renew

leases a new IP address (often the same one you just released) from a DHCP server

ipconfig /renew6

leases a new IPv6 IP address from a DHCP IPv6 server

ipconfig

view IPv4 and IPv6 address assigned to all network connections

ipconfig /release6

releases an IPv6 address

ipconfig /release

releases the IP address when dynamic IP addressing is being used