IP is the internetworking building block of all the other protocols at the Internet Layer and above. IP is a datagram protocol primarily responsible for addressing and routing packets between hosts. This chapter describes the details of the fields in the IP header and their role in IP packet delivery.

Note

Note

This chapter uses the term IP to refer to version 4 of IP (IPv4), which is in widespread use today. IP version 6 is denoted as IPv6.

Introduction to IP

IP is the primary protocol for the Internet Layer of the Department of ...

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