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CCNP ISCW Portable Command Guide

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CCNP ISCW Portable Command Guide

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Description

  • Copyright 2008
  • Dimensions: 6 X 9
  • Pages: 192
  • Edition: 1st
  • eBook (Watermarked)
  • ISBN-10: 1-58705-748-4
  • ISBN-13: 978-1-58705-748-9

CCNP ISCW Portable Command Guide

All the ISCW 642-825 commands in one compact, portable resource

Scott Empson

Hans Roth

Preparing for the CCNP certification? Working as a network professional? Here are all the CCNP-level commands for the ISCW exam you need in one condensed, portable resource. The CCNP ISCW Portable Command Guide is filled with valuable, easy-to-access information and is portable enough for use whether you’re in the server room or the equipment closet.

This book can help you memorize commands and concepts as you work to pass the CCNP ISCW exam (642-825). The guide summarizes all CCNP certification-level Cisco IOS Software commands, keywords, command arguments, and associated prompts, providing you with tips and examples of how to apply the commands to real-world scenarios. Sample configurations throughout the book provide you with a better understanding of how these commands are used in simple network designs.

The topics in this portable command guide cover how to do the following:

  • Implement basic teleworker services
  • Implement Frame-Mode MPLS
  • Implement a site-to-site IPsec VPN
  • Describe network security strategies
  • Implement Cisco Device Hardening
  • Implement Cisco IOS Firewall
  • Describe and configure Cisco IOS IPS

Scott Empson is currently the assistant program chair of the bachelor of applied information systems technology degree program at the Northern Alberta Institute of Technology in Edmonton, Alberta, Canada, teaching Cisco routing, switching, and network design courses in certificate, diploma, and applied degree programs at the post-secondary level.

Hans Roth is an instructor in the electrical/electronic engineering technology department at Red River College in Winnipeg, Canada.

  • Access all CCNP ISCW commands–use as a quick, offline resource for research and solutions
  • Logical “how-to” topic groupings provide one-stop research
  • Great for review before taking the CCNP ISCW certification exam
  • Compact size makes it easy to carry with you, wherever you go
  • “Create your own journal” section with blank, lined pages allows you to personalize the book for your needs

This book is part of the Cisco Press Certification Self-Study Product Family, which offers readers a self-paced study routine for Cisco certification exams. Titles in the Cisco Press Certification Self-Study Product Family are part of a recommended learning program from Cisco that includes simulation and hands-on training from authorized

Cisco Learning Partners and self-study products from Cisco Press.

Category: Cisco Press–Cisco Certification

Covers: CCNP ISCW Certification 642-825

Sample Content

Table of Contents

Chapter 1    Network Design Requirements 1

Cisco Service-Oriented Network Architecture 1

Cisco Enterprise Composite Network Model 2

Chapter 2    Connecting Teleworkers 3

Configuration Example: DSL Using PPPoE 3

    Step 1: Configure PPPoE (External Modem) 5

    Virtual Private Dial-Up Network (VPDN) Programming 5

    Step 2: Configure the Dialer Interface 6

    For Password Authentication Protocol (PAP) 7

    For Challenge Handshake Authentication Protocol (CHAP) 7

    Step 3: Define Interesting Traffic and Specify Default

    Routing 7

    Step 4a: Configure NAT Using an ACL 8

    Step 4b: Configure NAT Using a Route Map 9

    Step 5: Configure DHCP Service 10

    Step 6: Apply NAT Programming 10

    Step 7: Verify a PPPoE Connection 11

Configuring PPPoA 11

    Step 1: Configure PPPoA on the WAN Interface (Using

    Subinterfaces) 12

    Step 2: Configure the Dialer Interface 13

    For Password Authentication Protocol (PAP) 13

    For Challenge Handshake Authentication Protocol (CHAP) 13

    Step 3: Verify a PPPoA Connection 14

Configuring a Cable Modem Connection 15

    Step 1: Configure WAN Connectivity 16

    Step 2: Configure Local DHCP Service 17

    Step 3: Configure NAT Using a Route Map 18

    Step 4: Configure Default Routing 18

    Step 5: Apply NAT Programming 19

Configuring L2 Bridging Using a Cisco Cable Modem HWIC 19

    Step 1: Configure Global Bridging Parameters 19

    Step 2: Configure WAN to LAN Bridging 20

Configuring L3 Routing Using a Cisco Cable Modem HWIC 20

    Step 1: Remove Bridge Group Programming from All Interfaces 21

    Step 2: Configure LAN Connectivity 21

    Step 3: Configure WAN Connectivity 21

Chapter 3    Implementing Frame Mode MPLS 23

Configuring Cisco Express Forwarding 23

    Verifying CEF 24

    Troubleshooting CEF 24

Configuring MPLS on a Frame Mode Interface 25

Configuring MTU Size in Label Switching 26

Configuration Example: Configuring Frame Mode MPLS 27

    R1 Router 27

    R2 Router 28

    R3 Router 30

Chapter 4    IPsec VPNs 33

Configuring a Teleworker to Branch Office VPN Using CLI 34

    Step 1: Configure the ISAKMP Policy (IKE Phase 1) 35

    Step 2: Configure Policies for the Client Group(s) 35

    Step 3: Configure the IPsec Transform Sets (IKE Phase 2, Tunnel Termination) 36

    Step 4: Configure Router AAA and Add VPN Client

    Users 36

    Step 5: Create VPN Client Policy for Security Association Negotiation 37

    Step 6: Configure the Crypto Map (IKE Phase 2) 37

    Step 7: Apply the Crypto Map to the Interface 38

    Step 8: Verify the VPN Service 38

Configuring IPsec Site-to-Site VPNs Using CLI 39

    Step 1: Configure the ISAKMP Policy (IKE Phase 1) 39

    Step 2: Configure the IPsec Transform Sets (IKE Phase 2,

    Tunnel Termination) 40

    Step 3: Configure the Crypto ACL (Interesting Traffic, Secure

    Data Transfer) 40

    Step 4: Configure the Crypto Map (IKE Phase 2) 41

    Step 5: Apply the Crypto Map to the Interface (IKE Phase 2) 42

    Step 6: Configure the Firewall Interface ACL 42

    Step 7: Verify the VPN Service 42

Configuring IPsec Site-to-Site VPNs Using SDM 43

Configuring GRE Tunnels over IPsec 46

    Step 1: Create the GRE Tunnel 46

    Step 2: Specify the IPsec VPN Authentication Method 47

    Step 3: Specify the IPsec VPN IKE Proposals 47

    Step 4: Specify the IPsec VPN Transform Sets 48

    Step 5a: Specify Static Routing for the GRE over IPsec Tunnel 49

    Step 5b: Specify Routing with OSPF for the GRE over IPsec

    Tunnel 49

    Step 6: Enable the Crypto Programming at the Interfaces 50

Configuring a Static IPsec Virtual Tunnel Interface 50

    Step 1: Configure EIGRP AS 1 51

    Step 2: Configure Static Routing 51

    Step 3: Create IKE Policies and Peers 52

    Step 4: Create IPsec Transform Sets 54

    Step 5: Create an IPsec Profile 54

    Step 6: Create the IPsec Virtual Tunnel Interface 55

Configuring High Availability VPNs 56

    Step 1: Configure Hot Standby Routing Protocol Configuration on HSRP1 58

    Step 2: Configure Site-to-Site VPN on HSRP1 59

    HSRP1 Configuration 59

    Tunnel Traffic Filter 59

    Key Exchange Policy 60

    Addressing, Authentication Credentials, and Transform Set 60

    IPsec Tunnel 60

    HSRP2 Configuration 61

    Tunnel Traffic Filter 61

    Key Exchange Policy 61

    Addressing, Authentication Credentials, and Transform Set 61

    IPsec Tunnel 61

    Step 3: Add Programming for Crypto Redundancy Configuration 62

    Step 4: Define the Interdevice Communication Protocol (HSRP1 and HSRP) 63

    Step 5: Apply the Programming at the Interface 65

Configuring Easy VPN Server Using Cisco SDM 65

Implementing the Cisco VPN Client 69

Chapter 5    Cisco Device Hardening 71

Disabling Unneeded Services and Interfaces 72

Disabling Commonly Configured Management Services 74

Disabling Path Integrity Mechanisms 74

Disabling Features Related to Probes and Scans 75

Terminal Access Security 75

Gratuitous and Proxy Address Resolution Protocol 76

Disabling IP Directed Broadcasts 76

Locking Down Routers with AutoSecure 76

Optional AutoSecure Parameters 82

Locking Down Routers with Cisco SDM 83

    SDM Security Audit Wizard 83

    One-Step Lockdown 88

Setting Cisco Passwords and Password Security 90

Securing ROMMON 94

Setting a Login Failure Rate 95

Setting Timeouts 97

Setting Multiple Privilege Levels 97

Configuring Banner Messages 98

Role-Based CLI 100

Secure Configuration Files 102

Tips for Using Access Control Lists 103

Using ACLs to Filter Network Traffic to Mitigate Threats 104

    IP Address Spoofing: Inbound 104

    IP Address Spoofing: Outbound 106

    DoS TCP SYN Attacks: Blocking External Attacks 107

    DoS TCP SYN Attacks: Using TCP Intercept 108

    DoS Smurf Attacks 109

    Filtering ICMP Messages: Inbound 110

    Filtering ICMP Messages: Outbound 111

    Filtering UDP Traceroute Messages 112

Mitigating Dedicated DoS Attacks with ACLs 113

    Mitigating TRIN00 114

    Mitigating Stacheldraht 115

    Mitigating Trinity v3 117

    Mitigating SubSeven 118

Configuring an SSH Server for Secure Management and

Reporting 121

Configuring Syslog Logging 122

Configuring an SNMP Managed Node 123

Configuring NTP Clients and Servers 125

Configuration Example: NTP 127

    Winnipeg Router (NTP Source) 127

    Brandon Router (Intermediate Router) 128

    Dauphin Router (Client Router) 128

Configuring AAA on Cisco Routers Using CLI 129

    TACACS+ 129

    RADIUS 130

    Authentication 130

    Authorization 131

    Accounting 131

Configuring AAA on Cisco Routers Using SDM 132

Chapter 6    Cisco IOS Threat Defense Features 139

Configuring an IOS Firewall from the CLI 139

    Step 1: Choose the Interface and Packet Direction to Inspect 140

    Step 2: Configure an IP ACL for the Interface 140

    Step 3: Set Audit Trails and Alerts 141

    Step 4: Define the Inspection Rules 142

    Step 5: Apply the Inspection Rules and the ACL to the Outside Interface 143

    Step 6: Verify the Configuration 144

    Troubleshooting the Configuration 145

Configuring a Basic Firewall Using SDM 145

Configuring an Advanced Firewall Using SDM 149

Verifying Firewall Activity Using CLI 158

Verifying Firewall Activity Using SDM 158

Configuring Cisco IOS Intrusion Prevention System from the CLI 160

    Step 1: Specify the Location of the SDF 161

    Step 2: Configure the Failure Parameter 161

    Step 3: Create an IPS Rule, and Optionally Apply an ACL 162

    Step 4: Apply the IPS Rule to an Interface 162

    Step 5: Verify the IPS Configuration 163

    IPS Enhancements 163

Configuring Cisco IOS IPS from the SDM 165

Viewing Security Device Event Exchange Messages Through SDM 170

Tuning Signatures Through SDM 171

Appendix    Create Your Own Journal Here 175

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