IS 255 255 255 0 DEFAULT SUBNET MASK WINDOWS 10

Subnet mask is also expressed as four 8-bit (4 * 8 = 32 bits) numbers, separated by a dot.

What is subnet mask? Subnet mask is also a 32-bit binary number. IPv4 addresses are expressed as four 8-bit (4 * 8 = 32 bits) numbers, separated by a dot. This is an extremely complicated concept and while many people are experts with Server Administration and Active Directory Roles and many other things, this one is heavily math driven and took me a long, long time to wrap my head around.As explained in previous lesson about IPv4 addresses, an IPv4 address is a 32-bit binary number used to identify a computer uniquely in an IPv4 based TCP/IP network. If we scroll down and check our chart below, we can see that a prefix of 17 does, in fact, line up with a subnet mask of 255.255.128.0 and yields 32,766 usable IP addresses! If we do a quick conversion and lay it out in octets like an IP address we get 255.255.128.0. WeвЂ™ll take that long binary string and break it into 4 8-bit chunks. Pop quiz time: how many usable addresses are there in a вЂњslash 17вЂќ network, or a network with a prefix of 17? Well, letвЂ™s line up 17 1вЂ™s, and follow it up with 15 zeroes so that we have a total of 32 bits. LetвЂ™s take one more example to try and drive this all home. Are you starting to see where this is going? The prefix is simply the number of bits in the subnet mask that will be 1вЂ™s. If I were to write the number 255 in binary, it would look like 8 1вЂ™s in a row. But we still havenвЂ™t clarified just what is a prefix?Д¬omputers read these addresses in binary, without the dots separating the addresses, and each of the bytes would be represented as 8 bits. If you were to write 192.168.0.0/16, youвЂ™re indicating .x and either one of those XвЂ™s can be 1-255 вЂ“ thatвЂ™s where we get the 65,534 addresses. A вЂњ/24вЂќ network means 254 usable IP addresses, a /16 means 65,534! So, to make sense of this, letвЂ™s use some examples: an IP address with a Subnet Prefix such as вЂњ192.168.1.0/24вЂќ indicates that you are using the IP addressing scheme of 192.168.1.x with the subnet mask of 255.255.255.0 and you have the 254 usable addresses (1-255). Even though it is written as a suffix on the end of an IP address, it is known as the prefix of the subnet. The CIDR prefix as simply a shorthand representation which means the exact same thing. Then came the Classless Inter-Domain Routing (CIDR) method for allocating IP addresses which helped create the subnetting standard for IPv4 address. This is all done to ensure your devices only talk to the other devices you intend for them to talk to and you donвЂ™t accidentally interfere with other peopleвЂ™s nearby networks (routers enforce these rules that donвЂ™t allow cross talk between other networks, but this post is running long enough, we wonвЂ™t get in to all of that). Suddenly, you now have 65,534 available IP addresses. If you have a class B network, you could use subnet mask 255.255.0.0 (meaning that either of the zeroes could be any combination of numbers from 1-255). This gives you 254 usable addresses (1-255). In this example only the last byte / octet (the вЂњ0вЂќ in the subnet mask) can be changed on your current network. The most common example is a class вЂњCвЂќ network: 255.255.255.0. It is broken in to four bytes (x.x.x.x) called вЂњoctetsвЂќ (why? Because there are 8 bits in 1 byte. A subnet mask is really only used to help identify the CLASS of an IP address. If you traditionally typed another number in your Subnet Mask, look at the chart below and use the CIDR Prefix for what youвЂ™re familiar with typing!Д®DIT: I made a video about this that hopefully youвЂ™ll be able to absorb MUCH more quickly, and hopefully the visual demonstrations will make more sense!Д«ut why? The long answer: To understand this, you need to first understand subnet masks in general. That is the same as typing 255.255.255.0 in the old subnet mask field.

But rather than the standard вЂњSubnet MaskвЂќ option weвЂ™re all used to seeing, it asks users to fill in their Subnet Prefix Length.

IS 255 255 255 0 DEFAULT SUBNET MASK WINDOWS 10

Windows 10 has a convenient feature which allows you to specify your IP address depending on the wireless network you join вЂ“ making it far easier to bounce around between multiple offices, work locations, coffee shops, and home.

Is 255 255 255 0 default subnet mask