172 Statement

The subject of 172 statement encompasses a wide range of important elements. Usage of 192.168.xxx, 172.xxx and 10.xxx in private networks. I know that the organization that distributes IP addresses decided to assign 192.168.xxx, 172.xxx and 10.xxx to private networks. However, I thought that private networks have their own address spa... What range of IP addresses is represented by the CIDR block 172.16.0.0/12?. Thus this block represents the IP addresses from 172.16.0.0 to 172.31.255.255.

This perspective suggests that, the netid is 1010 1010 0001 and the CIDR block contains 2^20 addresses.* I fully understand that the CIDR block has 2^20 host ID addresses and that it is in a Class B network. How to divide an IPv4 network into subnets of different sizes as .... I need to divide a network 172.16.0.0/12 into 3 different subnets for different purposes. One of them needs 6 host addresses, another 85 host addresses and the last 100 host addresses.

Furthermore, overlaps with VLANS - Network Engineering Stack Exchange. 172.16.0.128/29 and 172.16.0.144/27 are in differents subnets, I tested that address in a Router, setting in a FastEthernet Interface, and works! interface FastEthernet0/1 In this context, how to tell if an ipv4 address is public or private? 172.16.0.0/12 IP addresses: 172.16.0.0 – 172.31.255.255 192.168.0.0/16 IP addresses: 192.168.0.0 – 192.168.255.255 My doubt is Should private addresses be only from the above mentioned ip range or can they have any ip address range? Can public ip address be from the above mentioned ip addresses ?

If so then will that be valid in the internet? ipv4 - Network Engineering Stack Exchange. 172.32.0.0/11 is assigned to T-Mobile.

Equally important, it's announced to the DFZ (since 2012) and most likely in use for real Internet traffic. If you squat on that address space, some portion of the Internet will become inaccessible to your network! Moreover, nat - Why isn't 10.0.0.0/8 used instead of 192.168.0.0/16 for private .... In our company we use 172.16.0.0/12 for historical reasons, with /24 subnets. When setting up something new I very often have to adjust the default /16 mask to /24.

ipv4 - Finding the network and host address, and maximum number of host .... A subnet of an IP network has a range of IP host address from 172.19.40.1 to 172.19.47.254. What is the maximum number of host addresses that can exist on this subnetwork? How to find the first and last address in the FIRST AND LAST SUBNET.

So there's a problem that literally stress me out every time I look at it. It's like I almost understand it until I get to knowing how to find the first and last host in the LAST address (last subn... Why is my Router's WAN IP different from public IP?.