Subnet Mask Wildcard
Boson TCP/IP Cheat Sheet 1 www.boson.com TCP/IP Cheat Sheet A Free Study Guide by Boson Software, LLC . Table 1. Address Class Summary Class Number of Subnets Number of Hosts per Subnet Range of Network IDs (First Octet) Class A 126 16,777,214 1 – 126 Class B Subnet Cheat Sheet - Subnet Cheat Sheet Hosts Netmask Amount of a Class C\/30 4 255.255.255.252 1\/64\/29 8 255.255.255.248 1\/32\/28 16 255.255.255.240 Private: 256 contiguos Class C, from 192.168.0.0/24 through 192.168.255.0/24 The subnet calculator allows the use of a single subnet bit - for example, a class C address with a subnet mask of 255.255.255.128 is permitted. The subnet calculator allows a subnet ID to have its final octet equal to the final octet of its subnet mask - for example, a class C network address of 192.168.0.192 with a subnet mask of 255.255.255 192 = Class C; Class C default mask = 255.255.255.0; Step 2: Determine how many additional subnet bits exist beyond the classful boundary. Since this is a class C address, we are only going to look at the fourth octet. Since the decimal mask is 224, we know there were three subnet bits added (counting up from the bottom of our cheat sheet).
Basic Subnetting Practice
Please write this chart out on a sheet of paper over and over until you can do it by heart. To see how to use the chart please visit the easy way to subnet page for an example. There are over 40 examples using Class A, B and C addresses in Subnetting Secrets along with some network design examples. Boson TCP/IP Cheat Sheet www.boson.com 6 Class C Example Breakdown Table 2 Subnet Octet Range Incremental Value Description Network (Subnet 0 – Do not use) 00/000000 0 64 net ID (goes in routing table) 00/000001 first host ID in Subnet 0 00/111110 62 last host ID in Subnet 0 00/111111 63 broadcast for only Subnet 0 Oct 22, 2019 · ip ip calculator ip subnet ipv4 subnet mask cheat sheet network subnet mask cheat sheet subnet mask cheat sheet class b subnet mask cheat sheet ipv6 Share this Story Previous Post Great solution for your social media accounts Next Post How To Add a User and Grant Root Privileges on Ubuntu 16.04 / 18.04 Prefix # of former class C nets: Potential Hosts: Actual Hosts: Netmask # of subnets /31: 1/128: 2: 0: 255.255.255.254: 128 /30: 1/64: 4: 2: 255.255.255.252: 64 /29
I was asked to include a link to this article, and since I use this page all the time when teaching a networking class, I was happy to make the addition. Steven Cooper is the author responsible for The Ultimate Guide to Subnetting – plus 10 Best Subnet Calculators and Cheat Sheet .
Jan 07, 2017 · Addresses Netmask Amount of a Class C /31 2 255.255.255.254 1/128 /30 4 255.255.255.252 1/64 /29 8 255.255.255.248 1/32 /28 16 255.255.255.240 1/16 /27 32 255.255.255.224 1/8 /26 64 255.255.255.192… Mar 11, 2019 · 2nd Subnet name and address range is : BackEnd_Subnet : 10.1.2.0/24. In the above two subnet each section of the subnet mask can contain a number from 0 to 256 . The number of IP can be vary as per the mask, as shown bellow. We can find more detail calculation on Subnet mask here. Subnet Mask Cheat Sheet