This lesson is on IPv4 Header. Ideal for ICT, Computer Science, Networking, or certification prep (CCNA, CCNP, or CompTIA Network+), it explains the structure and purpose of the IPv4 packet header, detailing each field and its role in data transmission. The lesson helps learners understand how information such as source and destination addresses, TTL (Time to Live), and protocol type work together to ensure accurate and efficient delivery of data across IP networks. ◇◆◇◆◇◆◇◆◇◆◇◆◇◆◇◆◇◆◇◆