Below is a list of reserved Internet Protocol (IP)addresses. In the Internet addressing architecture, the Internet Engineering Task Force (IETF) and the Internet Assigned Numbers Authority (IANA) have reserved variousIPaddressesfor special purposes.
Feb 26, 2023 ·ToblockpublicIPaccess and allow onlyprivateIPaccess to your Azure virtual machine through VPN, you can configure NSG to achieve this. -Create a Network Security Group (NSG) and associate it with your Azure virtual machine. Navigate to your virtual machine in the Azure portal and click on "Networking" from the left-hand menu.
This particular example perfectly highlights why Private Ip Address Restrict is so captivating.
How do we avoid 10.1.1.0 / 24 network to be routable on the Internet? ISPs usually denyprivateipaddressesas well as reservedaddressranges, that should never be used as publicaddressesin the internet (for exampla 0.0.0.0/8 or 169.254.0.0/16) in their BGP configuration. So their BGP routers will never learn routes for thoseaddressesvia BGP.
Furthermore, visual representations like the one above help us fully grasp the concept of Private Ip Address Restrict.
A list of IPv4addressranges that have been reserved by the IANA forprivateinternets, and are not publicly routable on the global Internet.
Mar 20, 2026 ·WhyPrivateAddressesExist Before NAT andprivateaddressing, every connected device required a unique publicIP. RFC 1918 (1996) createdprivateranges to allow organizations to use the sameaddressspace internally without coordination. NAT at the network boundary translatesprivateaddressesto public ones for internet communication.
Learn IPv4 & IPv6PrivateIPAddressRanges with clear explanations and practical examples quickly. Step-by-step guide with examples.
