ipconfig command

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The ipconfig command is widely used for basic configuration reporting and support tasks.

• for Windows
• Uses:
  • ipconfig displays the IP address, subnet mask, and default gateway (router) for all network interfaces to which TCP/IP is bound
  • ipconfig /all displays complete TCP/IP configuration parameters for each interface
    • includes DHCP and MAC address
  • ipconfig /renew interface forces a DHCP client to renew the lease it has for an IP address
  • ipconfig /release interface releases the IP address obtained from a DHCP server
    • the interface(s) will no longer have an IP address
  • ipconfig /displaydns displays the DNS resolver cache
  • ipconfig /flushdns clears the DNS resolver cache
  • ipconfig /registerdns registers the host with a DNS server
    • if supports dynamic updates
  • ipconfig /release6 and ipconfig /renew6 can also be used for DHCPv6
    • DHCP server supporting IPv6