Subnet Masking And Addressing

Subnet Masking And Addressing Ok, this explains subnet take to the woodsressing which is useful if you run a scanner, a firewall, a router or anything else that is bound to IP subnet kick inressing. Note that this lonesome(prenominal) describes IPv4 subnets. nurture binary values Normally, you read binary poesy bytewise (8 part wise). Start at the last situation, bit 0. If it is 1, ply 2^0 to your number, else add 0. Then the next bit, bit 1, If it is 1, add 2^1 (2) to your number, If bit 3 is 1 add 2^2 (4) to your number, if bit 4 is 1 add 2^3 (8) to your number ... if bit 8 is 1 add 2^7 (128) to your number. You see, the base is invariably 2 because it can be either 0 or 1.

usage 1: 10100100 = 2^7+0+2^5+0+0+0+2^2+0+0 = 164 Example 2: 11111111 = 2^7+2^6+2^5+2^4+2^3+2^2+2^1+2^0 = 255 Thats it! Now to subnet addressing. When you state a waiter including a subnet (example: nmap), you do it like this: 1.2.3.4/24, where /24 is the subnet. Lets have a tonicity at what this means: an IP address is a 32 bit address. It ...If you want to get a good essay, society it on our website: OrderCustomPaper.com

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