TCP/IP and the OSI Model - The Network (Internet) Layer

By Dan DiNicolo, June 2nd, 2006 Posted in CCNA Study Guide Chapter 04. Subscribe to our RSS Feed

If you recall, the Internet layer’s primary responsibilities are determining a path between networks (routing), as well as network addressing. The addressing that takes place at the Internet layer is often referred to as logical addressing. These addresses aren’t “burned-in” like Ethernet MAC addresses, but instead are assigned by an administrator. The addressing protocol of the TCP/IP stack is the Internet Protocol (IP).

Note that TCP/IP routing protocols such as RIP, OSPF, and others also exist at the Internet layer. These will be looked at in Chapter 8, when routing is covered in detail.

Written by Dan DiNicolo - Visit Website

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