IP Addressing and Subnetting - Hands-on Learning Approach

Learn decimal to binary and binary to decimal using an eight-bit doubling chart. See how an IP address uses eight-bit numbers and verify with the Windows calculator in programmer mode.

Learn classful IP addressing, the five classes (a through e), and their default subnet masks. Identify class from the first octet and its impact on networks.

Learn how class A, B, and C networks determine computers in a network using subnet masks and network IDs; class A 16 million, class B 65,000, class C 254.

Test ip addressing by assigning static ips to two virtual machines, pinging them to verify they communicate, and exploring class a, b, and c subnet rules and default gateway.

Explore how private IP addresses power internal networks using the 10.x blocks, the 172.16–31.x range, and the 192.168.x.x block, and how public IPs from ISPs enable internet access.

Explain CIDR notation and slash-based IP addressing, show how /24 maps to 255.255.255.0, and contrast class A, B, and C subnet masks to build subnetting skills.

Explore unicast, multicast, and broadcast IP communications. Learn how APIPA 169.254 addresses arise when DHCP fails, and identify network, assignable, and broadcast addresses within typical ranges.

Explore the loopback IP address, the 127.x.x.x range, which points to your own machine and is used to test the IP stack and internal software communication via localhost.

Review IP address classes A to E, loopback 127, and default masks like /8 and /24. Show how subnetting increases networks while reducing hosts per network.

Explore why subnetting matters by breaking a class C network of 254 hosts into smaller subnets, reducing broadcast, improving performance, and simplifying management and security through traffic isolation.

Learn subnetting basics by borrowing bits from the class C /24 (192.168.30.0/24) to create more networks with fewer hosts, and calculate masks like /25 (255.255.255.128).

Practice writing all class C subnets for slash notations from /25 to /30 using a memorized subnet mask chart to derive the correct masks.

Explore subnet masks and slash notation to subnet class c networks, calculate network id and broadcast, and identify first and last usable hosts in a 192.168.30.0/24 range.

Learn to subnet a class c /24 into two /25 networks, producing two subnets with 126 usable hosts and practical network IDs, first and last usable IPs, and broadcasts.

Explore slash-based subnetting on a class C network by practicing slash 28, 27, and 30, deriving network IDs, first and last IP, broadcast, and host counts.

This lecture covers slash 30 subnets, showing the 255.255.255.252 mask and two usable hosts, and explains why slash 30 suits wan connections, unlike slash 31.

Learn to subnet in your head by mentally calculating network IDs, first and last IPs, and broadcast addresses for various slash values, using incremental methods and practical Windows examples.

Learn to subnet class A and class B networks by hand, then validate with a subnet calculator to understand why calculators assist IP version four addressing.

Learn how IPv6 expands address space to 128 bits, uses hex notation and autoconfig via the MAC address, while delivering built-in IPsec, multicast, and no broadcast.

Learn the IPv6 format: eight 16-bit hex blocks totaling 128 bits, with a 64-bit prefix and a 64-bit interface id. Compress by removing leading zeros and using a single double-colon.

Discover the types of ipv6 addresses—global unicast, unique local, link-local, multicast, and anycast—and how dual stack and self-assigned addresses use ping and loopback (::1).

Encourage learners to practice with two virtual machines to ping and test IPv4 and IPv6 subnets, reinforcing interactive learning and upcoming certification goals.