Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide: Foundation learning for the ROUTE 642-902 Exam
First Edition
Copyright © 2010 Cisco Systems, Inc.
ISBN-10: 1-58705-882-0
ISBN-13: 978-1-58705-882-0
Warning and Disclaimer
Every effort has been made to make this book as complete and as accurate as possible, but no warranty or fitness is implied. The information provided is on an "as is" basis. The author and the publisher shall have neither liability nor responsibility to any person or entity with respect to any loss or damages arising from the information contained in this book or from the use of the CD or programs accompanying it.
When reviewing corrections, always check the print number of your book. Corrections are made to printed books with each subsequent printing.
First Printing: June 2010
Corrections for June 16, 2014
Pg / Error / Correction276 / Chapter 3, Example 3-30, R3#
Reads:
interface Ethernet0/0 / Should read:
interface Ethernet2/0/0
550 / Chapter 6, Last Paragraph, First Sentence
Reads:
In line 5, the next-hop address for networks that can be reached through Router B is changed from its default of 10.1.1.1 with the neighbor next-hop-self command. / Should read:
In line 5, the next-hop address for networks advertised to Router C is changed from its default (which would be the address of Router B’s EBGP neighbor) with the neighbor next-hop-self command.
551 / Chapter 6, Last Paragraph, Second Sentence
Reads:
The EBGP neighbor relationship to router R5 and IBGP neighborship to router R6 is configured. / Should read:
The EBGP neighbor relationship to router R5 and IBGP neighborship to router R4 is configured.
Corrections for June 10, 2014
Pg / Error / Correction382 / Chapter 4, Using Route Maps with Tags, Third Sentence
Reads:
The route-map statement 20 matches routes with a tag of 88. / Should read:
The route-map statement 100 matches routes with a tag of 88.
Correction dated April 29, 2014 for correction dated June 25, 2012
Pg / Error / Correction849 / Correction stated for Chapter 8, Figure 8-52, First line of second table in figure
Reads
Decimal 172 16 172 1 / Correction Should read:
Decimal 172 16 102 1
Corrections for March 25, 2014
Pg / Error / Correction72 / Chapter 2, Figure 2-5, IP EIGRP Neighbor Table, Router A, Interface
Reads:
FastEthernet 0 / Should read:
FastEthernet 0/0
81 / Chapter 2, Figure 2-16, second metric line
Reads:
192.168.6.0 IGRP metric 2000 ß------192.168.5.0 EIRGP metric 512000 / Should read:
192.168.5.0 IGRP metric 2000 ß------192.168.5.0 EIRGP metric 512000
Corrections for December 19, 2013
Pg / Error / Correction361 / Chapter 4, Table 4-8, Second parameter description in table
Reads:
(Optional) Specified the IP address. This allows filtering of networks according to the IP address of the router supplying the routing information. / Should read:
(Optional) Specified the IP address. This allows filtering of networks according to the IP address of the router supplying the routing information. For OSPF this field specified the OSPF router-id, not the address, of the router originating the route. (Note that this OSPF caveat is not in the Cisco documentation for this Command.)
361 / Chapter 4, Table 4-8, Last parameter description in table
Reads:
(Optional) The number or name of a standard or extended access list to be applied to the incoming routing updates. Allows filtering of the networks being advertised. / Should read:
(Optional) The number or name of a standard access list to be applied to the incoming routing updates. Allows filtering of the networks being advertised. (Note that the Cisco documentation states that an extended access list can also be identified here, but this option is not available on the routers.)
363 / Chapter 4, First two full sentences above Example 4-6
Reads:
The distance 90 10.0.0.0 0.0.0.255, distance 110 10.11.0.0 0.0.0.255, and distance 130 10.11.12.0 0.0.0.255 commands set the administrative distance to 90, 110, and 130, respectively, for all routes learned from routers with specific addresses; notice that the router’s addresses are specified from least to the most specific. For example, routes form a router with address 10.10.0.1 will have an administrative distance of 90, and routes from a router with address 10.11.12.1 will have an administrative distance of 130. / Should read:
The distance 90 10.0.0.0 0.0.0.255, distance 110 10.11.0.0 0.0.0.255, and distance 130 10.11.12.0 0.0.0.255 commands set the administrative distance to 90, 110, and 130, respectively, for all routes originated by routers with specific OSPF router-id’s. For example, routes originated by a router with OSPF router-id 10.10.0.1 will have an administrative distance of 90, and routes originated by a router with OSPF router-id 10.11.12.1 will have an administrative distance of 130.
Corrections for June 14, 2013
Pg / Error / Correction151 / Chapter 2, Last Paragraph, First Two Sentences
Reads:
Recall that the router uses the first, by key number, valid key for sending packets. As a result of this configuration, Router R1 will use key 1 for sending, from January 1 to 31, 2009, and will used key 2 for sending as of 4:00 a.m. on January 31, 2009. / Should read:
Recall that the router uses the first, by key number, valid key for sending packets. As a result of this configuration, Router R1 will use key 1 for sending, from January 1 to 31, 2009. Key 2 is valid for sending as of 4:00 a.m. on January 25, 2009, but it won’t be used until key 1 is no longer valid, at 4:00 a.m. on January 31, 2009.
Corrections for August 8, 2012
Pg / Error / Correction548 / Chapter 6, Second Bullet point
Reads:
· access-list 20 deny 172.16.0.0 0.31.255.255 / Should read:
· access-list 20 deny 172.16.0.0 0.15.255.255
Corrections for June 25, 2012
Pg / Error / Correction849 / Chapter 8, Figure 8-52, First line in figure
Reads
Decimal 172 16 101 1 / Should read:
Decimal 172 16 102 1
Corrections for May 15, 2012
Pg / Error / Correction5 / Chapter 1, Figure 1-1, Last Box
Label reads:
Interactive Services Layer / Should read:
Networked Infrastructure Layer
Corrections for April 10, 2012
Pg / Error / Correction729 / Example 8-16, 5th to last line
Reads:
*Aug 13 14:00:07.428: ICMPv6-ND: prefix=2001:1::/64 onlink autoconfig / Should read:
*Aug 13 14:00:07.428: ICMPv6-ND: prefix=2001:1:1001::/64 onlink autoconfig
Corrections for January 30, 2012
Pg / Error / Correction73 / Chapter 2, Second Paragraph, Third Sentence
Reads:
In other words, it must not loop back to the current successor. / Should read:
In other words, it must not loop back to the local router.
Corrections for August 16, 2011
Pg / Error / Correction88 / Chapter 2, Example 2-2, last line
Reads:
interface Serial0/0/1 / Should read:
interface Serial0/0/2
Corrections for April 29, 2011
Pg / Error / Correction396 / Example 4-25, last two lines
Reads:
ip prefix-list PFX1 permit 10.0.0.0/14
ip prefix-list PFX2 permit 10.8.0.0/14 / Should read:
ip prefix-list PFX1 permit 10.0.0.0/14 le 16
ip prefix-list PFX2 permit 10.8.0.0/14 le 16
Corrections for January 13, 2011
Pg / Error / Correction95 / Chapter 2, Last Bullet Point, Second Sentence
Reads:
This is the length of time Because EIRGRP last advertised this network to this router. / Should read:
This is the length of time since EIRGRP last advertised this network to this router.
123 / Chapter 2, Figure 2-26
R2 Fa0/0 interface and label 172.16.3.1/24 are on the left side of router R3 / Should be:
R2 Fa0/0 interface and label 172.16.3.1/24 should be on the right side of router R3
251 / Chapter 3, Figure 3-31
Reads:
10.x.2.0/24 between router R2 and R4 on right side of figure / Should read:
10.1.2.0/24
275 / Chapter 3, OSPF LSDB for Virtual Links, First paragraph
Reads:
Figure 3-44 presents another example network. The configurations for Routers R1 and R3 are provided in Example 3-30. / Should read:
Figure 3-44 presents another example network. Partial configurations for Routers R1 and R3 are provided in Example 3-30.
275 / Chapter 3, Figure 3-44, OSPF Virtual Link Across Area 1
Change link between R2 and R3 / Change the link between R2 and R3 to a “Cloud” with the label “Frame Relay” keeping existing labeling on the link (addresses, cost, interface name, etc)
291 / Chapter 3, OSPF NSSA LSDB,
First paragraph
Reads:
Figure 3-52 illustrates another example network, used to illustrate an NSSA LSDB. The configuration of Routers R1, R2, and R3 are provided in Example 3-40. / Should read:
Figure 3-52 illustrates another example network, used to illustrate an NSSA LSDB. Partial configuration of Routers R1, R2, and R3 are provided in Example 3-40.
291 / Chapter 3, Figure 3-52, OSPF NSSA Example Network
Change link between R2 and R3 / Change the link between R2 and R3 to a “Cloud” with the label “Frame Relay” keeping existing labeling on the link (addresses, cost, interface name, etc)
362 / Chapter 4, Last paragraph before Example 4-6
Reads:
In example 4-6, the distance ospf external 100 inter-area 100 intra-area 100 command sets the administrative distance for external, interarea, and intra-area OSPF routes to 100 (default values are 110). The distance 90 10.0.0.0 0.0.0.255, distance 110 10.11.0.0 1.1.1.255, and distance 130 10.1 1.12.0 0.0.0.255 commands set the administrative distance to 90, 110, and 130, respectively, for all rotes learned from routers with specific addresses: notice that the router’s addresses are specified from least to the most specific. For example, routes from a router with address 10.10.0.1 will have an administrative distance of 90, and routes from a router with address 10.11.12.1 will have an administrative distance of 130. / Should read:
In example 4-6, the distance ospf external 100 inter-area 100 intra-area 100 command sets the administrative distance for external, interarea, and intra-area OSPF routes to 100 (default values are 110). The distance 90 10.0.0.0 0.0.0.255, distance 110 10.11.0.0 1.1.1.255, and distance 130 10.11.12.0 0.0.0.255 commands set the administrative distance to 90, 110, and 130, respectively, for all rotes learned from routers with specific addresses. For example, routes from a router with address 10.0.0.1 will have an administrative distance of 90, and routes from a router with address 10.11.12.1 will have an administrative distance of 130.
525 / Chapter 6, Example 6-1, last row in figure
Incorrectly aligned / Align last row with the previous row
596 / Chapter 7, First paragraph Second sentence
Reads:
We will also discover how services such as can impact the network design. / Should read:
We will also discover how services such as NAT can impact the network design.
This errata sheet is intended to provide updated technical information. Spelling and grammar misprints are updated during the reprint process, but are not listed on this errata sheet.
Updated 06/16/2014