Are all 172 IP addresses private?

It depends on what IP address you're using.

If you're using private IP addresses (like I'm guessing your question is), then it's not that it's public; it's that anyone in your ISP can see your IP address. It doesn't matter if it's the IP address of your router or a single IP address; if they happen to be the same IP, then you have some problems.

Yes, if you are using private IP address or any address which is blocked by your ISP. However you don't need to worry about this since VPN hides your IP address and you get your own IP address.

What is the difference between IP 172 and 192?

When you get a new computer, it has an IP address that starts at 10.

0 (that's the first block of numbers in 10.) When you plug it into your network, the first thing it does is test the connectivity to the Internet (or another local device like a router or printer), and if it can't reach an IP address on the 'net, it increments its IP address. If it can, it will have 10. That's the first block of numbers in 10. Each subsequent device that you add to your network will have a unique IP address, starting with 10.2, 10.3, etc. Now here's where it gets interesting. You can't always connect to your IP address directly. When you say 172.16.10, your computer knows that it can't reach 10.1 because it looks for something like 10.1 and finds nothing. It therefore uses 172.10 to tell your computer where it thinks 10.1 is. If you were to enter 192.168.1 into your browser, you'd end up at 10.1, but if you had no network connection at all (therefore 10.1 doesn't exist), your browser would be telling your computer that your computer is actually 192.1, not 10.

Let's take a look at a more complex IP address: 192.12. First, we know that 192.0 is the first block of numbers in 192. If we look at the first block of numbers in 192.0, we see 20. So our first step is to split 20. Into two: 20. Here's where the second block comes into play.0 has four blocks of numbers in it, so our second step is to partition the second block of numbers into two: 20. And 192. We now have 20.192, which tells us that our IP address is 20. Now what happens when we go to 192.

What are the 3 private IP address ranges?

The public and LAN IP address ranges are in the address space that you are using for your service, whereas the private IP address range should be assigned to your network interface.

In this case, you don't need to explicitly assign a subnet mask to a service on a. router or server. In all cases, the service binds to all addresses that are part of the defined IP address range, not the subnet of the. defining address(es). And that there's nothing binding a service on that private IP address range, eg: The first command will return zero as long as no binding exists. on the given private IP address range. The second command will report an error if a binding is already in place. Check that the IP address you want to be a private IP address isn't being reserved on your. I think you're talking about a local-only address. Check the output of ipconfig (requires admin priviledges): 192.168.0.192
10.50 10.15 10.1 (in fact, I think this is your public address) 10.254 192.252 That seems wrong to me - and would make a private subnet out of the last two.