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CCNA 3 and 4 Companion Guide, 3rd Edition
ISBN: 1-58713-113-7
Cisco Press


CCNA 3 (Chapters 2 through 10)

Chapter 2
Introduction to Classless Routing

Page 66 In Figure 2-12,the commands in the figure should be applied in two portions:

First enter “router rip” and that will put the router into router configuration mode. Then, on the second line, enter the “version 2”command.

Page 66 In Example 2-4, highlight:

Sending updates every 30 seconds, next due in 12 seconds
Invalid after 180 seconds, hold down 180, flushed after 240

Page 67 In the secondparagraph, delete the second sentence, “In Example 2-4, 18 seconds have passed since Router A received an update from Router B.”

Page 71 In Figure 2-13, Default Routing w/RIP, the followingdestination IP address should replace the destination IP address between Hong Kong 1 and the Internet cloud in the graphic:

Page 72 In Example 2-9, Default Route, change the IP addressto:

HongKong1 (config )#ip route

Page 72 In the third paragraph, the third sentence should read, “In the diagram, Hong Kong 1 has only one way out to theInternet through the interface”

Chapter 3 (p. 77)
Single-Area OSPF

Page 79 In the second paragraph, the second and third sentences should read, “Every router in the OSPF area, as inFigure 3-4, has the same link-state database. Therefore, every router has the same information about the state of the links and every other router’s neighbors.”

Page 80 In the first paragraph, thefirst sentence should read, “Each router keeps a list of adjacent neighbors, called the adjacency database. The adjacency database is a list of all the neighbor routers to which a router has establishedbidirectional communication. This is unique to each router.”

Page 83 Figure 3-7 should be replaced with the following figure:

Page 85 In the sixth paragraph, the first sentence should...
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