Subnetting IPv4 Part 1: Calculate the Subnet & Broadcast ID

In this video you will be able to calculate 1. Subnet & Broadcast ID from a given IP and Subnet Mask. 2. Where the subnet mask values comes from. 3. Decimal to Binary Conversion. 4. Binary Addition. Given the below what is the Subnet and Broadcast ID? Linkedin: https://www.linkedin.com/in/zarina-aisha-meeran-18b885a7 MyWeb: https://www.zarinasnet.com IP: 10.24.206.13 Subnet Mask: 255.255.128.0 Step 1: Calculate bits as per subnet mask provided. - Calculate 2^0 all the way up to 2^7. - The first bit is 128 for the second bit add the first value to the second value, for example Bit 1 = 128 Bit 2 = 128 + 64 = 192 Bit 3 = 192 + 32 = 224 etc. you now created your subnet mask table - Next, match the octet values against your subnet mask table to work out how many bits, for example 128 has 1 bit and 255 has 8 bits. - Add all the bits together to give a total for your subnet mask. In this case we have 17 bits. Step 2: Calculate the binary representation of the IP address. - Take the decimal within each octet and divide by two. - If the value has a remainder the binary becomes 1 for that step else 0. - Keep going til that value can not be divided any further. - Write the 1s and 0s bottom up. - This is your binary representation....keep doing this for all four octets. Step 3: Add both binary representation to get there Subnet ID - The rule is 1 + 1 = 1 everything else equals 0, - Once written out use the subnet mask table created to calculate its decimal for the third and fourth octet since it is a class A address. - In this example the bit becomes 128 and thus the ip is 10.24.128.0 for the subnet ID. Step 4: Calculate the Broadcast ID. - Take the binary representation of the subnet ID and flips the 0s to 1s. - Convert this binary representation to decimal again using the subnet mask table and you get 10.24.255.255.

Видео Subnetting IPv4 Part 1: Calculate the Subnet & Broadcast ID автора Геометрия с минимумом формул