Microsoft DOS ipconfig command

Quick links

About ipconfig
Availability
Windows 95, 98, ME syntax
Windows 2000 and XP syntax
Examples

About ipconfig

Ipconfig is a DOS utility that can be used from MS-DOS and a MS-DOS shell to display the network settings currently assigned and given by a network. This command can be utilized to verify a network connection as well as to verify your network settings.

Availability

The ipconfig.exe command is an external command and is available in the below Microsoft operating systems.

Windows 95
Windows 98
Windows ME
Windows 2000
Windows XP
Windows Vista
Windows 7

Windows 95, 98, and ME syntax

/All Display detailed information.
/Batch [file] Write to file or ./WINIPCFG.OUT
/renew_all Renew all adapters.
/release_all Release all adapters.
/renew N Renew adapter N.
/release N Release adapter N.

Windows 2000 and XP syntax

ipconfig [/? | /all | /release [adapter] | /renew [adapter] | /flushdns | /registerdns | /showclassid adapter | /setclassid adapter [classidtoset] ]

/all Display full configuration information.
/release Release the IP address for the specified adapter.
/renew Renew the IP address for the specified adapter.
/flushdns Purges the DNS Resolver cache.
/registerdns Refreshes all DHCP leases and re-registers DNS names
/displaydns Display the contents of the DNS Resolver Cache.
/showclassid Displays all the dhcp class IDs allowed for adapter.
/setclassid Modifies the dhcp class id.

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 class id is specified, then the classid is removed.

Examples

To get your computers local network IP address, subnet mask, and default gateway typing ipconfig alone displays this information as shown below. Keep in mind this is only your local network information. If you're trying to determine your IP address used on the Internet we suggest viewing our system information page.

ipconfig

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . : hsd1.ut.comcast.net.
IP Address. . . . . . . . . . . . : 192.168.201.245
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.201.1

To get all local network information for your computer use the /all switch as shown below, followed by the results that would be seen when using this command.

ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . : COMPUTERH1
DNS Servers . . . . . . . . : 123.45.67.8
111.111.111.1
111.111.111.1
Node type . . . . . . . . . : Broadcast
NetBIOS Scope ID. . . . . . :
IP Routing Enabled. . . . . : No
WINS Proxy Enabled. . . . . : No
NetBIOS Resolution Uses DNS : No

0 Ethernet adapter :

Description . . . . . . . . : PPP Adapter.
Physical Address. . . . . . : 44-44-44-54-00-00
DHCP Enabled. . . . . . . . : Yes
IP Address. . . . . . . . . : 123.45.67.12
Subnet Mask . . . . . . . . : 255.255.0.0
Default Gateway . . . . . . : 123.45.67.8
DHCP Server . . . . . . . . : 255.255.255.255
Primary WINS Server . . . . :
Secondary WINS Server . . . :
Lease Obtained. . . . . . . : 01 01 80 12:00:00 AM
Lease Expires . . . . . . . : 01 01 80 12:00:00 AM

1 Ethernet adapter :

Description . . . . . . . . : 3Com 3C90x Ethernet Adapter
Physical Address. . . . . . : 00-50-04-62-F7-23
DHCP Enabled. . . . . . . . : Yes
IP Address. . . . . . . . . : 111.111.111.108
Subnet Mask . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . : 111.111.111.1
DHCP Server . . . . . . . . : 111.111.111.1
Primary WINS Server . . . . :
Secondary WINS Server . . . :
Lease Obtained. . . . . . . : 11 16 00 12:12:44 AM
Lease Expires . . . . . . . :

ipconfig /displaydns

Running the above command would display all the DNS information.

ipconfig /flushdns

Delete all DNS entries.

Additional information

  • See our ip address definition for further information and related links on this term.