Post #508173

I’m not sure how useful this is, but it helped me understand. The subnet mast is the count of the bits from the front that matter. This is useful for switches and network equipment that only have to look at that much if the packet and route it quickly. So a 10.0.0.0/8 address the switch only looks at the first 8 binary digits (also called an octet) and routes it based on that. This also works for non multiple of 8 masks, as it’s an operation done on a binary level 10.10.10.1/8 IP: 00001010.00001010.00001010.00000001 Mask: 00000000.11111111.11111111.11111111