Configure IP (internet protocol configuration)
Syntax
IPCONFIG /all Display full configuration information.
IPCONFIG /release [adapter]
Release the IP address for the specified adapter.
IPCONFIG /renew [adapter]
Renew the IP address for the specified adapter.
IPCONFIG /flushdns Purge the DNS Resolver cache.
IPCONFIG /registerdns Refresh all DHCP leases and re-register DNS names.
IPCONFIG /displaydns Display the contents of the DNS Resolver Cache.
IPCONFIG /showclassid adapter
Display all the DHCP class IDs allowed for adapter.
IPCONFIG /setclassid adapter [classid]
Modify the dhcp class id.
If the Adapter name contains spaces, use quotes: "Adapter Name"
wildcard characters * and ? allowed, see the examples below
The default is to display only the IP address, subnet mask and default gateway for each adapter bound to TCP/IP.
For Release and Renew, if no adapter name is specified, then the IP address leases for all adapters bound to TCP/IP will be released or renewed.
For Setclassid, if no ClassId is specified, then the ClassId is removed.
Examples:
ipconfig ... Show information.
ipconfig /all ... Show detailed information
ipconfig /renew ... renew all adapters
ipconfig /renew EL* ... renew any connection that has its
name starting with EL
ipconfig /release *Con* ... release all matching connections,
eg. "Local Area Connection 1" or
"Local Area Connection 2"
ipconfig /setclassid "Local Area Connection" TEST
... set the DHCP class ID for the
named adapter to = TEST
Related:
Q192064 - Locate multiple preferred logon servers
Q813878 - How to block specific network protocols and ports.
Q313190 - Use IPSec IP Filter Lists