Disabling IPv6 in Windows

 

Goto HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip6\Parameters

Create the following key or change its value

KeyName: DisabledComponents

Type: REG_DWORD

Value: 255 (Decimal)

Routers, Switches, Packets and Frames

Network SWITCH - Fundamental concepts EXPLAINED - How does Network SWITC...

Windows Server 2012 Server Core–Playing with Network Card using PowerShell Part 2

Setting DNS server First find the InterfaceAlias or InterfaceIndex using the “Get-NetIPInterface” of the desired interface. Now use the following command to set the DNS server IP address

Set-DNSClientServerAddress –InterfaceIndex <InterfaceIndex as UInt32> -ServerAddresses <Comma separated list of IP Address as String>

                                                                 or

Set-DNSClientServerAddress -InterfaceAlias <InterfaceAlias as String> -ServerAddresses <Comma separated list of IP Address as String>

Before Setting DNS

  After Setting DNS

Removing DNS server First find the InterfaceAlias or InterfaceIndex using the “Get-NetIPInterface” of the desired interface. Now use the following command to reset the DNS server IP address

Set-DnsClientServerAddress –InterfaceIndex <InterfaceIndex as UInt32> -ResetServerAddresses

                                       or

Set-DnsClientServerAddress -InterfaceAlias <InterfaceAlias as String> –ResetServerAddresses

After resetting DNS

Removing IP Address First find the InterfaceAlias or InterfaceIndex using the “Get-NetIPInterface” of the desired interface. Now use the following command to remove just the IP address from the interface

Remove-NetIPAddress –InterfaceIndex <InterfaceIndex as UInt32>

                                 or

Remove-NetIPAddress -InterfaceAlias <InterfaceAlias as String>

 If you want to remove the IPAddress without confirmation just use the option “-Confirm:$false” at the end of above command, of course without quotes. Now if you want to remove IPAddress and default gateway then use the following command. Use “-Confirm:$false” part only if you don't want questions for confirmation.

Remove-NetIPAddress –InterfaceIndex <InterfaceIndex as UInt32> -IPAddress <IPAddress as String> -DefaultGateway <DefaultGateway as String> [-Confirm:$false]

                                                                       or

Remove-NetIPAddress -InterfaceAlias <InterfaceAlias as String> -IPAddress <IPAddress as String> -DefaultGateway <DefaultGateway as String> [-Confirm:$false]

 Viewing DNS cache Use the following command to view the DNS cache

Get-DNSClientCache

 Clearing DNS Cache Use the following command to clear the DNS Cache

Clear-DNSClientCache

   

Windows Server 2012 Server Core–Playing with Network Card using PowerShell Part 1

Finding the InterfaceIndex or InterfaceAlias of the network adapters in the system

Get-NetIPInterface

This will list all the Network cards with their InterfaceIndex, Interface lias, AddressFamily, NlMtu in Bytes, InterfaceMetric, DHCP status, ConnectionState and PolicyStore in that order.

To view more details about a particular network card use the following command

Get-NetIPInterface –InterfaceAlias <InterfaceAlias as String>                              or Get-NetIPInterface –InterfaceIndex <InterfaceIndex as UInt32>

Another command that you can use for this purpose is the following one

Get-NetIPConfiguration

Issuing this will command will give you the details of the IP Network Interfaces as shown below

If you want to get the details of a particular interface use the following command

Get-NetIPConfiguration –InterfaceAlias <InterfaceAlias as String>
                       or
Get-NetIPConfiguration –InterfaceIndex <InterfaceIndex as UInt32>

[Note: You can use any of these commands to find the InterfaceAlias or InterfaceIndex for the commands below and for commands in Part 2 of this post]
To view the status and properties of the network adapter

Get-NetAdapter

This will list the Name, InterfaceDescriptuion, InterfaceIndex, Status, MAC Address and Speed of all the visible network adapters in the system.

If you want to view the status of the hidden adapters also, use the following command

Get-NetAdapter –IncludeHidden

To disable a network adapter First find the InterfaceAlias using the “Get-NetIPInterface” command or InterfaceDescription using “Get-NetAdapter” of the desired interface. Now use the following command

Disable-NetAdapter -Name <InterfaceAlias>

                                              or

Disable-NetAdapter -InterfaceDescription < InterfaceDescription>

To disable a network adapter without asking for confirmation, use the following command

Disable-NetAdapter -Name <InterfaceAlias> -Confirm:$false

                          or

Disable-NetAdapter -InterfaceDescription < InterfaceDescription> -Confirm:$false

To enable a network adapter First find the InterfaceAlias using the “Get-NetIPInterface” command or InterfaceDescription using “Get-NetAdapter” of the desired interface. Now use the following command

Enable-NetAdapter -Name <InterfaceAlias>

                           or

Enable-NetAdapter -InterfaceDescription < InterfaceDescription>

To disable IPV6 in a network adapter First find the InterfaceAlias using the “Get-NetIPInterface” command or InterfaceDescription using “Get-NetAdapter” of the desired interface. Now use the following command

Set-NetAdapterBinding -Name <InterfaceAlias> -ComponentID ms_tcpip6 -Enabled $false

                                            or

Set-NetAdapterBinding -InterfaceDescription < InterfaceDescription> -ComponentID ms_tcpip6 -Enabled $false

Before Disabling IPv6

  After Disabling IPv6

Setting IPv4 address to a network card First find the InterfaceAlias or InterfaceIndex using the “Get-NetIPInterface” of the desired interface. Now to set the IP address, Subnet mask and default gateway for the desired network card please use any of the following command.

New-NetIPAddress –InterfaceIndex <InterfaceIndex as UInt32> –IPAddress <IPAddress as String> –PrefixLength < PrefixLength as Byte> –DefaultGateway < DefaultGateway as String>

                                                        or

New-NetIPAddress –InterfaceAlias <InterfaceAlias as String> –IPAddress <IPAddress as String> –PrefixLength < PrefixLength as Byte> –DefaultGateway < DefaultGateway as String>