A Few Networking Commands To Be Run From Windows

Last day after the Internet Technology Exam, I was going through a particular site where I found some CMD PRMT commands through which we can easily check some TCP/IP configuration settings.
Here they are ::::

1. IPCONFIG

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

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2. Netsh.exe

With Netsh.exe you can easily view your TCP/IP settings. Type the following command in a Command Prompt window (CMD.EXE):

netsh interface ip show config


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With Netsh.exe, you can easily configure your computer's IP address and other TCP/IP related settings. For example:

The following command configures the interface named Local Area Connection with the static IP address 192.168.0.100, the subnet mask of 255.255.255.0, and a default gateway of 192.168.0.1:

netsh interface ip set address name="Local Area Connection" static 192.168.0.100 255.255.255.0 192.168.0.1 1

Netsh.exe can be also useful in certain scenarios such as when you have a portable computer that needs to be relocated between 2 or more office locations, while still maintaining a specific and static IP address configuration. With Netsh.exe, you can easily save and restore the appropriate network configuration.