most often in networks today. This chapter covers the TCP/IP protocols as well as IP
addressing and subnetting. Cisco expects CCNAs not just to know IP addressing and
routing, but also to know the concepts behind many other TCP/IP protocols. In addition,
CCNAs should be able to easily recall the commands used to examine the details of IP
processing in a router. Of course, Cisco also requires you to continually prove your
understanding of IP subnetting on the CCNA exam and on almost all other Cisco exams.
established and widely implemented for more than a decade. Very few changes that affect
the router's role in forwarding NetWare traffic have been made in the last four years.
Routing is straightforward; if you understand IP routing, then you likely will find IPX
routing easy to grasp. Of course, this book also assumes that you have completed the ICND
course or have logged equivalent experience, so the text is written under the assumption that
NetWare protocols are not new to you. This chapter briefly reviews the main concepts,
clarifies the trickiest details, and helps you refine your retention and recall with questions
and scenarios.
easy reference.
show that retention is significantly increased through writing down facts and
concepts, even if you never look at the information again.