These include Intra-Site Automatic Tunnel Addressing Protocol (ISATAP), 6to4, and Teredo.
IPV4 LOOPBACK ADDRESS WINDOWS
This value also configures Windows to prefer using IPv4 over IPv6 by changing entries in the prefix policy table. Type 0xff to disable all IPv6 components except the IPv6 loopback interface.Type 0 to re-enable all IPv6 components (Windows default setting).#You need to reboot the computer in order for the changes to take effect Set-ItemProperty “HKLM:\SYSTEM\CurrentControlSet\Services\Tcpip6\Parameters\” -Name “DisabledComponents” -Value 0x20 #If DisabledComponents exists, use the set cmdlet New-ItemProperty “HKLM:\SYSTEM\CurrentControlSet\Services\Tcpip6\Parameters\” -Name “DisabledComponents” -Value 0x20 -PropertyType “DWord” #If the reply is IPv6 address, run following registry setting to just prefer ipv4 and reboot Here is a simple way to do it using PowerShellīreak #In case you paste this in to PowerShell ISE and press run script:) Do not disable IPv6 on the network card because that will not work. This needs to be done in registry and a reboot is required after the change. In these cases I do not disable IPv6 but prefer IPv4. If the service is set to run only on IPv4 the service will fail and not find the listening interface since it is not listening on IPv6. When using localhost as the destination in a client connector interface of an application, the MySQL application programming interface connects to the database using a Unix domain socket, while a TCP connection via the loopback interface requires the direct use of the explicit address.Sometimes working with Lync and Skype for Business I see that the services are trying to contact other servers or localhost which returns an IPv6 address. The releases of the MySQL database differentiate between the use of the hostname localhost and the use of the addresses 127.0.0.1 and ::1. For example, a locally installed website may be accessed from a Web browser by the URL display its home page. The local loopback mechanism may be used to run a network service on a host without requiring a physical network interface, or without making the service accessible from the networks the computer may be connected to.
IPV4 LOOPBACK ADDRESS DRIVER
If that fails, try reinstalling the driver for your NIC or replacing the NIC. Try removing and reinstalling TCP/IP on your machine. If this test produces an error, your NIC is incorrectly configured or your TCP/IP stack is corrupt. You can also type the command ping localhost to achieve the same result, or you can even ping any other legal IP address with the form 127.x.y.z.
![ipv4 loopback address ipv4 loopback address](https://i.stack.imgur.com/7ofK8.png)
To test whether TCP/IP is installed correctly on a machine running Microsoft Windows, type ping 127.0.0.1 at the command prompt. The loopback address is used to route outgoing IP packets to the TCP/IP protocol stack bound to the network interface card (NIC) and back to the source application without actually placing the packets on the network. In TCP/IP networking, Loopback Address is the special IP address 127.0.0.1.