Computer Networks · TEE · read-chapter

IPv4: understand the address before subnetting

TEE · shared foundations and Units 3–4 · current syllabus 702AI0C023

1. IPv4 addresses: four octets, one 32-bit value
2. Classful addressing: historical default boundaries
3. Private, loopback and special IPv4 addresses
4. Subnet masks: 1 keeps a network bit; 0 marks a host bit
5. Prefix to mask · example 1
6. Prefix to mask · example 2
7. Prefix to mask · example 3
8. Prefix to mask · example 4