What are the private address blocks - Answers
When you create a VPC, we recommend that you specify a CIDR block (of /16 or smaller) from the private IPv4 address ranges as specified in RFC 1918: 10.0.0.0 - 10.255.255.255 (10/8 prefix) You can block an IP address from outside your network in one of two ways. The first method is to use Filter Rules. This is located at Config > Network > Filter Rules. Select Source Address as a condition to block traffic originating from the IP address that you want to block. Public IP addresses enable Azure resources to communicate to Internet and public-facing Azure services. The address is dedicated to the resource, until it's unassigned by you. A resource without a public IP assigned can communicate outbound. Azure dynamically assigns an available IP address that isn't dedicated to the resource. Section 3: Private Address Space The Internet Assigned Numbers Authority (IANA) has reserved the following three blocks of the IP address space for private networks: 10.0.0.0 - 10.255.255.255 172.16.0.0 - 172.31.255.255 192.168.0.0 - 192.168.255.255 We will refer to the first block as "24-bit block", the second as "20-bit block", and the third as "16-bit" block".
When you create a VPC, we recommend that you specify a CIDR block (of /16 or smaller) from the private IPv4 address ranges as specified in RFC 1918: 10.0.0.0 - 10.255.255.255 (10/8 prefix)
4 ways to keep your IP address private and secure Jul 27, 2018
Jan 26, 2018 · Because there's a finite number of IP addresses (4,294,967,296, under IPv4) and only so many available by location, mere mortals like you and me generally don't have to worry about our IP addresses.
192.168.0.0/16 IP addresses: 192.168.0.0 – 192.168.255.255; Note that only a portion of the “172” and the “192” address ranges are designated for private use. The remaining addresses are considered “public,” and thus are routable on the global Internet. Use caution when setting filters to exclude these private address ranges. Jan 26, 2018 · Because there's a finite number of IP addresses (4,294,967,296, under IPv4) and only so many available by location, mere mortals like you and me generally don't have to worry about our IP addresses.