Solution Manual for CCNA 2 v7 Labs and Study Guide

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Switching, Routing, andWireless Essentials Labs andStudy Guide (CCNAv7)Instructor’s Answer KeyAllan JohnsonCisco Press221 River St.Hoboken, NJ 07030 USA

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viSwitching,Routing,andWirelessEssentialsLabsandStudyGuide(CCNAv7)Contents at a GlanceIntroductionxxxChapter 1Basic Device Configuration1Chapter 2Switching Concepts69Chapter 3VLANs77Chapter 4Inter-VLAN Routing161Chapter 5STP Concepts251Chapter 6EtherChannel265Chapter 7DHCPv4311Chapter 8SLAAC and DHCPv6349Chapter 9FHRP Concepts379Chapter 10LAN Security Concepts393Chapter 11Switch Security Configuration405Chapter 12WLAN Concepts439Chapter 13WLAN Configuration455Chapter 14Routing Concepts503Chapter 15IP Static Routing535Chapter 16Troubleshoot Static and Default Routes571

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ContentsIntroductionxxxChapter 1Basic Device Configuration1Study Guide2Configure a Switch with Initial Settings2Switch Boot Sequence2The boot system Command2Switch LED Indicators3Recovering from a System Crash4Switch Management Access5Switch SVI Configuration6Configure Switch Ports6Duplex Communication6Configure Switch Ports at the Physical Layer6Auto-MDIX7Switch Verification Commands7Network Access Layer Issues8Troubleshooting Network Access Layer Issues9Secure Remote Access10Telnet Operation10SSH Operation10Verify That the Switch Supports SSH10Configure SSH10Verify That SSH Is Operational11Packet Tracer Exercise 1-1: Configure Secure Access12Basic Router Configuration13Configure Basic Router Settings13Dual Stack Topology14Configure Router Interfaces14IPv4 Loopback Interfaces15Packet Tracer Exercise 1-2: Basic Router Configuration15Verify Directly Connected Networks16Verify Interface Status16Verify IPv6 Link-Local and Multicast Addresses16Verify Interface Configuration17Verify Routes17Filter Show Command Output18Command History Feature19Check Your Understanding—Verify Directly Connected Networks20Labs and Activities21Command Reference21Contentsvii

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viiiSwitching,Routing,andWirelessEssentialsLabsandStudyGuide(CCNAv7)1.1.7 Lab—Basic Switch Configuration (Instructor Version)23Topology23Addressing Table23Objectives23Background / Scenario24Required Resources24Part 1: Cable the Network and Verify the Default SwitchConfiguration25Part 2: Configure Basic Network Device Settings29Part 3: Verify and Test Network Connectivity31Part 4: Manage the MAC Address Table34Reflection Questions37Appendix A: Initialize and Reload a Switch37Device Configs38Switch S1381.3.6 Packet Tracer—Configure SSH (Instructor Version)42Addressing Table42Objectives42Background42Instructions42Part 1: Secure Passwords42Part 2: Encrypt Communications421.4.7 Packet Tracer—Configure Router Interfaces (Instructor Version)44Addressing Table44Objectives44Background44Instructions44Part 1: Configure IPv4 Addressing and Verify Connectivity44Part 2: Configure IPv6 Addressing and Verify Connectivity45Final Configuration45Router R145Router R2451.5.10 Packet Tracer—Verify Directly Connected Networks(Instructor Version)46Addressing Table46Objectives46Background46Instructions46Part 1: Verify IPv4 Directly Connected Networks46Part 2: Verify IPv6 Directly Connected Networks48Final Configuration49Router R149Router R249

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1.6.1 Packet Tracer—Implement a Small Network (Instructor Version)50Addressing Table50Objectives50Instructions50Part 1: Create the Network Topology50Part 2: Configure Devices51Device Configurations52Router RTA52Switch SW153Switch SW2531.6.2 Lab—Configure Basic Router Settings (Instructor Version)54Topology54Addressing Table54Objectives54Background / Scenario55Required Resources55Instructions56Part 1: Set Up the Topology and Initialize Devices56Part 2: Configure Devices and Verify Connectivity56Part 3: Display Router Information59Reflection Questions65Router Interface Summary Table66Device Configs66Router R166Chapter 2Switching Concepts69Study Guide70Frame Forwarding70Switching in Networking70The Switch MAC Address Table70The Switch Learn and Forward Method70Switching Forwarding Methods71Store-and-Forward Switching71Cut-Through Switching71Activity—Build the MAC Address Table72Switching Domains73Collision Domains73Broadcast Domains74Alleviate Network Congestion74Check Your Understanding—Switching Domains75Labs and Activities76Contents ix

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xSwitching,Routing,andWirelessEssentialsLabsandStudyGuide(CCNAv7)Chapter 3VLANs77Study Guide78Overview of VLANs78VLAN Definitions78Benefits of VLAN Design78Types of VLANs78Check Your Understanding—Overview of VLANs79VLANs in a Multi-Switched Environment80Defining VLAN Trunks80Network Without VLANs80Network with VLANs80VLAN Identification with a Tag81Native VLANs and 802.1Q Tagging81Voice VLAN Tagging82Check Your Understanding—VLANs in a Multi-Switched Environment83VLAN Configuration85VLAN Ranges on Catalyst Switches85VLAN Creation and Port Assignment Exercise85Packet Tracer 3-1: VLAN Creation and Port Assignment86Requirements86Verify VLAN Information87Modify VLANs and Port Assignments88VLAN Trunks88Trunk Configuration Commands88Packet Tracer Exercise 3-2: VLAN and Trunk Configuration89Reset the Trunk to the Default State90Dynamic Trunking Protocol90Introduction to DTP90Negotiated Interface Modes90Results of a DTP Configuration91Verify DTP Mode92Check Your Understanding—Dynamic Trunking Protocol93Labs and Activities94Command Reference943.1.4 Packet Tracer—Who Hears the Broadcast? (Instructor Version)95Objectives95Scenario95Instructions95Reflection Questions963.2.8 Packet Tracer—Investigate a VLAN Implementation(Instructor Version)97Addressing Table97

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Objectives97Background97Instructions97Part 1: Observe Broadcast Traffic in a VLAN Implementation97Part 2: Observe Broadcast Traffic without VLANs99Reflection Questions993.3.12 Packet Tracer—VLAN Configuration (Instructor Version)101Addressing Table101Objectives101Background101Part 1: View the Default VLAN Configuration101Part 2: Configure VLANs102Part 3: Assign VLANs to Ports103Answer Scripts105Switch S1105Switch S2105Switch S31053.4.5 Packet Tracer—Configure Trunks (Instructor Version)107Addressing Table107Objectives107Background107Instructions107Part 1: Verify VLANs107Part 2: Configure Trunks108Answer Scripts109Switch S1109Switch S2109Switch S31093.4.6 Lab—Configure VLANs and Trunking (Instructor Version)110Topology110Addressing Table110Objectives110Background / Scenario110Required Resources111Instructions111Part 1: Build the Network and Configure Basic Device Settings111Part 2: Create VLANs and Assign Switch Ports113Part 3: Maintain VLAN Port Assignments and the VLAN Database116Part 4: Configure an 802.1Q Trunk Between the Switches120Part 5: Delete the VLAN Database124Reflection Questions125Device Configs - Final125Contents xi

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xiiSwitching,Routing,andWirelessEssentialsLabsandStudyGuide(CCNAv7)Switch S1125Switch S21293.5.5 Packet Tracer—Configure DTP (Instructor Version)133Addressing Table133Objectives133Background / Scenario133Instructions133Part 1: Verify VLAN configuration133Part 2: Create additional VLANs on S2 and S3134Part 3: Assign VLANs to Ports135Part 4: Configure Trunks on S1, S2, and S3136Part 5: Reconfigure trunk on S3138Part 6: Verify end to end connectivity138Script138Switch S1138Switch S2139Switch S31393.6.1 Packet Tracer—Implement VLANs and Trunking(Instructor Version)141Addressing Table141Objectives141Background141Instructions141Part 1: Configure VLANs141Part 2: Assign Ports to VLANs142Part 3: Configure Static Trunking142Part 4: Configure Dynamic Trunking142Answer Scripts142Switch SWA142Switch SWB143Switch SWC1443.6.2 Lab—Implement VLANs and Trunking (Instructor Version)145Topology145Addressing Table145VLAN Table145Objectives145Background / Scenario146Required Resources146Instructions146Part 1: Build the Network and Configure Basic Device Settings146Part 2: Create VLANs and Assign Switch Ports148Part 3: Configure an 802.1Q Trunk Between the Switches150Device Configs - Final151

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Switch S1151Switch S2155Chapter 4Inter-VLAN Routing161Study Guide162Inter-VLAN Routing Operation162What is Inter-VLAN Routing?162Legacy Inter-VLAN Routing162Router-on-a-Stick Inter-VLAN Routing162Inter-VLAN Routing on a Layer 3 Switch162Check Your Understanding—Inter-VLAN Routing Operation163Router-on-a-Stick Inter-VLAN Routing164Router-on-a-Stick Command Syntax164Router-on-a-Stick Configuration165Packet Tracer Exercise 4-1: Router-on-a-Stick Inter-VLAN RoutingConfiguration166Inter-VLAN Routing Using Layer 3 Switches166Layer 3 Switch Inter-VLAN Routing166Layer 3 Switch Configuration167Packet Tracer 4-2: Layer 3 Switch Inter-VLAN Routing Configuration168Troubleshoot Inter-VLAN Routing169Common Inter-VLAN Issues169Troubleshoot Router-on-a-Stick Inter-VLAN Routing170Troubleshoot Layer 3 Switch Inter-VLAN Routing171Check Your Understanding—Troubleshoot Inter-VLAN Routing174Labs and Activities175Command Reference1754.2.7 Packet Tracer—Configure Router-on-a-Stick Inter-VLAN Routing(Instructor Version)175Addressing Table175Objectives175Scenario176Instructions176Part 1: Add VLANs to a Switch176Part 2: Configure Subinterfaces177Part 3: Test Connectivity with Inter-VLAN Routing177Answer scripts178Switch S1178Router R11794.2.8 Lab—Configure Router-on-a-Stick Inter-VLAN Routing(Instructor Version)180Topology180Addressing Table180Contentsxiii

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xivSwitching,Routing,andWirelessEssentialsLabsandStudyGuide(CCNAv7)VLAN Table180Objectives180Background / Scenario181Required Resources181Instructions182Part 1: Build the Network and Configure Basic Device Settings182Part 2: Create VLANs and Assign Switch Ports184Part 3: Configure an 802.1Q Trunk Between the Switches186Part 4: Configure Inter-VLAN Routing on the Router187Part 5: Verify Inter-VLAN Routing is Working188Router Interface Summary Table188Device Configs - Final189Switch S1189Switch S2193Router R11984.3.8 Packet Tracer—Configure Layer 3 Switching and Inter-VLAN Routing(Instructor Version)201Addressing Table201Objectives201Background / Scenario201Instructions202Part 1: Configure Layer 3 Switching202Part 2: Configure Inter-VLAN Routing202Part 3: Configure IPv6 Inter-VLAN Routing204Script205MLS205S12064.4.8 Packet Tracer—Troubleshoot Inter-VLAN Routing(Instructor Version)207Addressing Table207Objectives207Scenario207Instructions207Part 1: Locate the Network Problems207Part 2: Implement the Solutions208Part 3: Verify Network Connectivity2084.4.9 Lab—Troubleshoot Inter-VLAN Routing (Instructor Version)209Topology209Addressing Table209VLAN Table209Objectives209Background / Scenario210

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Router R1210Switch S1210Switch S2212Required Resources213Instructions213Part 1: Evaluate Network Operation213Part 2: Gather information, create an action plan, and implementcorrections214Router R1214Switch S1214Switch S2215Device Configuration - Final215Router R1215Switch S1217Switch S22214.5.1 Packet Tracer—Inter-VLAN Routing Challenge (Instructor Version)227Addressing Table227VLAN and Port Assignments Table227Scenario227Instructions227Answer Scripts228Switch S1228Router R12294.5.2 Lab—Implement Inter-VLAN Routing (Instructor Version)230Topology230Addressing Table230VLAN Table230Objectives230Background / Scenario231Required Resources231Instructions232Part 1: Build the Network and Configure Basic Device Settings232Part 2: Create VLANs and Assign Switch Ports234Part 3: Configure an 802.1Q Trunk Between the Switches236Part 4: Configure Inter-VLAN Routing on the Router237Part 5: Verify Inter-VLAN Routing is Working238Router Interface Summary Table239Device Configs - Final239Switch S1239Switch S2244Router R1248Contents xv

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xviSwitching,Routing,andWirelessEssentialsLabsandStudyGuide(CCNAv7)Chapter 5STP Concepts251Study Guide252Purpose of STP252Issues with Redundant Switch Links252Layer 2 Loops252Broadcast Storm252The Spanning-Tree Algorithm252Check Your Understanding—Purpose of STP253STP Operation253Steps to a Loop-Free Topology2531. Elect the Root Bridge2542. Elect the Root Ports2553. Elect Designated Ports2554. Elect Alternate (Blocked) Ports256Elect a Root Port from Multiple Equal-Cost Paths256STP Timers and Port States256Operational Details of Each Port State257Check Your Understanding—STP Operations258Evolution of STP259Different Versions of STP259RSTP Port States and Port Roles260PortFast and BPDU Guard260Check Your Understanding—Evolution of STP261Labs and Activities262Command Reference2625.1.9 Packet Tracer—Investigate STP Loop Prevention(Instructor Version)262Objectives262Background / Scenario262Instructions262Part 1: Observe a Converged Spanning-Tree Instance262Part 2: Observe spanning-tree convergence263Chapter 6EtherChannel265Study Guide266EtherChannel Operation266EtherChannel Advantages266Implementation Restrictions266PAgP and LACP Autonegotiation Protocols266Check Your Understanding—EtherChannel Operation268Configure EtherChannel269Configuration Guidelines269EtherChannel Configuration Steps269

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EtherChannel Configuration Scenarios270Verify and Troubleshoot EtherChannel271Verify EtherChannel271Troubleshoot EtherChannel273Labs and Activities275Command Reference2756.2.4 Packet Tracer—Configure EtherChannel (Instructor Version)275Objectives275Background275Instructions276Part 1: Configure Basic Switch Settings276Part 2: Configure an EtherChannel with Cisco PAgP276Part 3: Configure an 802.3ad LACP EtherChannel278Part 4: Configure a Redundant EtherChannel Link279EtherChannel Configuration Guidelines and Restrictions280Answer Scripts281Switch S1281Switch S2282Switch S32826.3.4 Packet Tracer—Troubleshoot EtherChannel (Instructor Version)283Objectives283Background283Instructions284Part 1: Examine the Physical Layer and Correct Switch PortModeIssues284Part 2: Identify and Correct Port Channel Assignment Issues285Part 3: Identify and Correct Port Channel Protocol Issues285Answer Scripts286Switch S1286Switch S2286Switch S3287Switch S42876.4.1 Packet Tracer—Implement EtherChannel (Instructor Version)288Objectives288Background288Instructions288Part 1: Build the Network288Part 2: Configure EtherChannel289Answer Scripts290Switch SWA290Switch SWB290Switch SWC291Contentsxvii

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xviiiSwitching,Routing,andWirelessEssentialsLabsandStudyGuide(CCNAv7)6.4.2 Lab—Implement EtherChannel (Instructor Version)292Topology292Addressing Table292VLAN Table292Objectives292Background / Scenario292Required Resources293Instructions293Part 1: Build the Network and Configure Basic DeviceSettings293Part 2: Create VLANs and Assign Switch Ports294Part 3: Configure 802.1Q trunks between the switches296Part 4: Implement and Verify an EtherChannel between the switches298Device Configs - Final300Switch S1300Switch S2304Chapter 7DHCPv4311Study Guide312DHCPv4 Concepts312DHCPv4 Operation312Check Your Understanding—DHCPv4 Concepts313Configure a Cisco IOS DHCPv4 Server313Steps to Configure a Cisco IOS DHCPv4 Server313DHCPv4 Relay316Other Service Broadcasts Relayed316Configure a DHCPv4 Client316Labs and Activities318Command Reference3187.2.10 Packet Tracer—Configure DHCPv4 (Instructor Version)319Addressing Table319Objectives319Scenario319Instructions319Part 1: Configure a Router as a DHCP Server319Part 2: Configure DHCP Relay320Part 3: Configure a Router as a DHCP Client321Part 4: Verify DHCP and Connectivity321Answer Scripts321Router R1321Router R2321Router R3322

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7.4.1 Packet Tracer—Implement DHCPv4 (Instructor Version)323Addressing Table323Objectives323Scenario323Instructions323Part 1: Configure a Router as a DHCP Server323Part 2: Configure DHCP Relay324Part 3: Configure R2 as a DHCP Client324Answer Scripts324Router R1324Router R2324Router R33257.4.2 Lab—Implement DHCPv4 (Instructor Version)326Topology326Addressing Table326VLAN Table326Objectives326Background / Scenario327Required Resources327Instructions327Part 1: Build the Network and Configure Basic Device Settings327Part 2: Configure and verify two DHCPv4 Servers on R1333Part 3: Configure and verify a DHCP Relay on R2334Device Configs - Final334Switch S1334Switch S2339Router R1342Router R2345Chapter 8SLAAC and DHCPv6349Study Guide350IPv6 GUA Assignment350IPv6 Host Configuration350IPv6 Host Link-Local Address350IPv6 GUA Assignment350Three RA Message Flags351Check Your Understanding—IPv6 GUA Assignment351SLAAC351Enabling SLAAC351SLAAC-Only Method351Host Process to Generate an Interface ID352Duplicate Address Detection352Check Your Understanding—SLAAC352Contentsxix

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