Subnet mask table for class b12/11/2022 ![]() So a /29, if we wrote that out in dotted decimal notation it’s 255.255.255.248. This one is very handy if you’ve been given the subnet mask in dotted decimal notation rather than with a slash. You’ll see this being cited in quite a few places on the internet. So that’s 135.15.10.137 up to 135.15.10.142.Īnother popular way of calculating the network address, the broadcast address, and the host addresses is by using the magic number method. The valid addresses for our hosts fall between the network address and the broadcast address. Now, if the next network address is 144, then the broadcast address is 135.15.10.143. The next network address would be 135.15.10.144. The line is after the 8, so we add 8 to 136 and that is 144. We add those two together which is equal to 136. In the top right, we’ve got ones under 128 and 8. ![]() We’re putting a line after the /29 and the line is going in after the 8. We’ve got the IP address and the subnet mask. #SUBNET MASK TABLE FOR CLASS B PLUS#5 plus 8 gives us 13 bits and 2 to the power of 13 is going to allow a total of 8,192 subnets.įor the IP address, 135.15.10.138/29, what would be the network address, the broadcast address, and the range of valid IP addresses? It would give us 5 bits but since it is Class B, we’ve got those extra 8 bits. If it was a Class C, we would only have 5 bits for the network address because 29 minus 24 has a difference of 5. In a Class B /16 range we’re going to have 13 bits for the network address. So, a /29 will give us 6 available hosts per network even if we’re using a Class A, B, or C. This will allow us 6 hosts per network because 2 to the power of 3 is equal to 8 minus 2 gives us 6 hosts. We’ve got 32 bits in the address, 32 minus 29 gives us our 3 bits. ![]() ![]() If we subnet that into /29 subnets, we’re going to have 3 bits for host addressing. For our first example, we’ve been allocated a Class B network with an IP address of 135.15.0.0/16. ![]()
0 Comments
Leave a Reply.AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |