How To Find Subnet Mask From Ip
Camila Farah

For any given ip address the subnet mask is calculated by setting all the bits reserved for network id part and subnet id part to 1.
That determination occurs on the host. Simply press the windows key and r at the same time to open the command prompt and type cmd followed by enter type the ip config command in the red box below this will allow you to see your subnet mask as shown below. Also explore hundreds of other math financial fitness and health calculators. Those values are calculated by converting the subnet mask plus source destination addresses.
It s effortless to check your ip address subnet mask and default gateway. How to calculate subnet mask from ip address step by step. Now select the option run. Select the cmd exe link in the programs pane to open a command prompt window.
Instead the subnet mask is used to determine whether a destination ip address is on the local subnet or whether it is in some remote subnet and has to be sent to the router for onward destination. Use the ipconfig command type ipconfig at the prompt and press enter this command displays all network. I used this site to run the whois and it gave me the information necessary to find the subnet. You can check on any system.
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The explanation of how the subnet mask works is sub optimal. Find subnet number subtract prefix number from 32 32 29 3. The most simple way to find your own subnet mask is to run a simple command line in windows. First valid host address.
You have been given an ip address 10 20 4 13 29 and been asked to find out the following pieces. Doing a whois lookup the best i can find is that this has a 20 cidr making it a 255 255 240 0 subnet. This free online ip subnet calculator covers both ipv4 and ipv6 protocols providing information such as ip address network address subnet mask ip range and more. This is located in the section titled ethernet adapter local area connection find the line beginning subnet mask and look across to find your subnet mask.
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