Comparing, Designing, And Deploying Vpns

, by Lewis, Mark

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Note: Supplemental materials are not guaranteed with Rental or Used book purchases.

ISBN: 9781587051791 | 1587051796
Cover: Paperback w/CD
Copyright: 1/1/2006

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Summary

Supplemental Materials

A detailed guide for deploying PPTP, L2TPv2, L2TPv3, MPLS Layer-3, AToM, VPLS and IPSec virtual private networks.

Introduction

xxii

Part I Understanding VPN Technology

(22)

What Is a Virtual Private Network?

(20)

VPN Devices

(13)

VPN Technologies and Protocols

(1)

Technologies and Protocols Used to Enable Site-to-Site VPNs

(1)

Technologies and Protocols Used to Enable Remote Access VPNs

(1)

Modeling and Characterizing VPNs

(1)

Service Provider and Customer Provisioned VPNs

(1)

Site-to-Site and Remote Access VPNs

(2)

Service Provider Provisioned Site-to-Site VPNs

(2)

Customer Provisioned Site-to-Site VPNs

(1)

Service Provider and Customer Provisioned Remote Access VPNs

(1)

Other Methods of Categorizing VPNs

(2)

Deploying Site-to-Site and Remote Access VPNs: A Comparison

(4)

Site-to-Site VPN Deployment

(1)

Remote Access VPN Deployment

(3)

Summary

(1)

Review Questions

(3)

Part II Site-to-Site VPNs

(682)

Designing and Deploying L2TPv3-Based Layer 2 VPNs

(110)

Benefits and Drawbacks of L2TPv3-Based L2VPNs

(1)

L2TPv3 Pseudowire Operation

(12)

L2TPv3 Deployment Models

(1)

L2TPv3 Message Types

(3)

The L2TPv3 Control Connection

(1)

L2TPv3 Control Connection Setup

(2)

L2TPv3 Control Connection Teardown

(1)

L2TPv3 Session Setup

(1)

L2TPv3 Session Teardown

(2)

Hello and SLI Messages

(1)

Configuring and Verifying L2TPv3 Pseudowires

(93)

Deploying L2TPv3 Pseudowires with Dynamic Session Setup

(1)

Step 1: Configure CEF

(1)

Step 2: Configure a Loopback Interface to Use as the Pseudowire Endpoint

(1)

Step 3: Configure an L2TPv3 Class (Optional)

(2)

Step 4: Configure a Pseudowire Class

(1)

Step 5: Bind Attachment Circuits to Pseudowires

(48)

Implementing L2TPv3 Pseudowire-Based L2VPNs Using Static Session Configuration

(1)

Static L2TPv3 Sessions Without a Control Connection

(3)

Static L2TPv3 Sessions with a Control Connection

(2)

L2VPN Interworking with L2TPv3

(1)

Ethernet Mode L2VPN Interworking with L2TPv3

(3)

IP Mode L2VPN Interworking with L2TPv3

102

(10)

Resolving MTU Issues with L2VPN Interworking

112

(1)

Routing Protocol Considerations with L2VPN Interworking

113

(1)

Transporting IPv6 over an IPv4 Backbone Using IPv6 Protocol Demultiplexing

114

(4)

Provisioning Quality of Service for L2TPv3 Pseudowires

118

(3)

Configuring an Input QoS Policy on (Ingress) PE Router Attachment Circuits

121

(4)

Configuring an Output QoS Policy on (Egress) PE Router Attachment Circuits

125

(3)

Avoiding Packet Fragmentation and Packet Drops with L2TPv3 Pseudowires

128

(6)

Summary

134

(1)

Review Questions

134

(3)

Designing and Implementing AToM-Based Layer 2 VPNs

137

(88)

Benefits and Drawbacks of AToM-Based L2VPNs

138

(1)

AToM Pseudowire Operation

139

(17)

Control Channel Messages

140

(2)

AToM Pseudowire Setup

142

(8)

AToM Status Signaling

150

(4)

AToM Data Channel Packet Forwarding

154

(2)

Deploying AToM Pseudowires

156

(32)

Implementing AToM Pseudowires for Ethernet Traffic Transport

156

(1)

AToM Pseudowire Ethernet Port Transport

157

(6)

AToM Pseudowire Ethernet VLAN (802.1Q) Transport

163

(2)

Deploying AToM Pseudowires for HDLC and PPP Traffic Transport

165

(6)

Frame Relay Traffic Transport with AToM Pseudowires

171

(1)

Frame Relay Port Mode Traffic Transport

171

(1)

Frame Relay DLCI-to-DLCI Switching Traffic Transport

172

(4)

Using AToM Pseudowires to Transport ATM Traffic

176

(2)

ATM Cell Relay

178

(10)

Implementing Advanced AToM Features

188

(34)

Deploying AToM Pseudowire QoS

188

(7)

Tunnel Selection for AToM Pseudowires

195

(1)

Configuring PE Routers for MPLS-TE Tunnel Selection for AToM Pseudowires

195

(4)

Configuring P Routers for MPLS-TE

199

(1)

Tunnel Selection for AtoM Pseudowires: Final Network Topology and Advantages

200

(1)

Verifying MPLS-TE Tunnel Selection for AToM Pseudowires

201

(1)

L2VPN Pseudowire Switching with AToM

202

(5)

L2VPN Interworking with AToM Pseudowires

207

(2)

Configuring Ethernet Mode L2VPN Interworking with AToM Pseudowires

209

(1)

Configuring IP Mode L2VPN Interworking with AToM Pseudowires

209

(1)

Verifying L2VPN Interworking with AToM Pseudowires

210

(1)

Configuring and Verifying Local Switching

211

(2)

Local Switching Between the Same Types of Physical Interfaces

213

(2)

Local Switching Between Different Interface Types

215

(1)

Local Switching Between Circuits on the Same Interface

216

(1)

Resolving AToM Data Channel Packet Drop Issues

217

(5)

Summary

222

(1)

Review Questions

222

(3)

Designing MPLS Layer 3 Site-to-Site VPNs

225

(68)

Advantages and Disadvantages of MPLS Layer 3 VPNs

226

(1)

MPLS Layer 3 VPNs Overview

227

(4)

IP Reachability in an MPLS Layer 3 VPN

227

(2)

User Packet Forwarding Between MPLS Layer 3 VPN Sites

229

(2)

A Detailed Examination of MPLS Layer 3 VPNs

231

(4)

Distinguishing Customer VPN Prefixes Using Route Distinguishers (RD)

232

(1)

Using Route Targets (RT) to Control Customer VPN Route Distribution

233

(2)

Deploying MPLS Layer 3 VPNs

235

(56)

Configuration of PE Routers

236

(1)

Step 1: Configure a Loopback Interface for Use as the PE Router's BGP Router ID/LDP Router ID

237

(1)

Step 2: Configure LDP

237

(2)

Step 3: Enable MPLS on Interfaces Connected to Other PE or P Routers

239

(1)

Step 4: Configure the Backbone Network IGP

239

(2)

Step 5: Configure MP-BGP for VPNv4 Route Exchange with Other PE Routers or Route Reflectors

241

(2)

Step 6: Configure the Customer VRFs

243

(1)

Step 7: Configure the Customer VRF Interfaces

243

(1)

Step 8: Configure the Customer VRF Routing Protocols or Static Routes for Connectivity Between Customer VPN Sites

244

(4)

Step 9: Redistribute the PE-CE Routing Protocol/Static VRF Routes into MP-BGP

248

(2)

Configuration of P Routers

250

(1)

Provisioning Route Distribution for VPN Topologies

250

(1)

Full-Mesh Topology

251

(1)

Hub-and-Spoke Topology

252

(7)

Extranet Topology

259

(10)

Preventing Routing Loops When Customer VPN Sites Are Multihomed

269

(3)

Configuring the SoO Attribute When eBGP Is Used as the PE-CE Routing Protocol

272

(3)

Configuring the SoO Attribute When eBGP Is Not Used as the PE-CE Routing Protocol

275

(2)

Implementing Internet Access for MPLS Layer 3 VPNs

277

(1)

Providing Internet Access via Separate Global Interfaces on PE Routers

278

(4)

Providing Internet Access Using Route Leaking Between VRFs and the Global Routing Table on PE Routers

282

(5)

Providing Internet Access via a Shared Services VPN

287

(4)

Summary

291

(1)

Review Questions

291

(2)

Advanced MPLS Layer 3 VPN Deployment Considerations

293

(114)

The Carriers' Carrier Architecture

293

(22)

CSC Architecture When MPLS Is Not Enabled Within CSC Customer Sites

294

(1)

Route Advertisement in a CSC Architecture When MPLS Is Not Enabled Within CSC Customer Sites

295

(9)

Packet Forwarding in a CSC Architecture When MPLS Is Not Enabled Between Routers Within CSC Customer Sites

304

(3)

CSC Architecture When MPLS Is Enabled Within CSC Customer Sites

307

(1)

Route Advertisement in a CSC Architecture When MPLS Is Enabled Within CSC Customer Sites

307

(2)

Packet Forwarding in a CSC Architecture When MPLS Is Enabled Between Routers Within CSC Customer Sites

309

(1)

Enabling Hierarchical VPNs in a CSC Architecture

310

(5)

The Inter-Autonomous System/Interprovider MPLS VPN Architecture

315

(33)

VRF-to-VRF Connectivity at ASBRs

316

(1)

Route and Label Advertisement Between Autonomous Systems When Deploying Inter-Autonomous System MPLS VPNs VRF-to-VRF Connectivity at ASBRs

317

(5)

Packet Forwarding Between Autonomous Systems When Deploying Inter-Autonomous System MPLS VPNs VRF-to-VRF Connectivity at ASBRs

322

(3)

Advertisement of Labeled VPN-IPv4 (VPNv4) Between ASBRs Using MP-eBGP

325

(1)

Route and Label Advertisement Between Autonomous Systems When Deploying Inter-Autonomous System MPLS VPNs Using MP-eBGP Between ASBRs

325

(6)

Packet Forwarding Between Autonomous Systems When Deploying Inter-Autonomous System MPLS VPNs Using MP-eBGP Between ASBRs

331

(3)

Advertisement of Labeled VPN-IPv4 (VPNv4) Between Route Reflectors in Separate Autonomous Systems Using Multihop MP-eBGP

334

(1)

Route and Label Advertisement When Deploying Inter-Autonomous System MPLS VPNs with the Advertisement of Labeled VPN-IPv4 Between Route Reflectors in the Separate Autonomous Systems

335

(11)

Packet Forwarding When Deploying Inter-Autonomous System MPLS VPNs Using MP-eBGP Between Route Reflectors in Separate Autonomous Systems

346

(2)

Supporting Multicast Transport in MPLS Layer 3 VPNs

348

(26)

Point-to-Point GRE Tunnels

349

(2)

Multicast VPNs (MVPN)

351

(1)

The Multicast VRF and Multicast Domain

351

(2)

The Default and Data MDTs

353

(6)

PIM Adjacencies

359

(1)

Reverse-Path Forwarding Checks in the MVPN

360

(1)

Configuring PIM Between PE and P Routers in the Service Provider MPLS VPN Backbone Network

361

(3)

Advantages of Deploying MVPN

364

(1)

Configuring and Verifying MVPN

364

(10)

Implementing QoS for MPLS Layer 3 VPNs

374

(18)

MPLS DiffServ Tunneling Models

377

(1)

Pipe Model/Short Pipe Model

377

(2)

Uniform Model

379

(1)

Configuring MPLS QoS on Cisco Routers

380

(1)

Implementing an MPLS DiffServ Pipe Model Architecture

381

(7)

Implementing an MPLS DiffServ Short Pipe Model Architecture

388

(2)

Implementing an MPLS DiffServ Uniform Model Architecture

390

(2)

Supporting IPv6 Traffic Transport in MPLS Layer 3 VPNs Using 6VPE

392

(11)

6VPE Route Exchange

393

(1)

6VPE Data Packet Forwarding

394

(1)

Configuring and Verifying 6VPE

395

(8)

Summary

403

(1)

Review Questions

404

(3)

Deploying Site-to-Site IPsec VPNs

407

(116)

Advantages and Disadvantages of IPsec Site-to-Site VPNs

408

(1)

IPsec: A Security Architecture for IP

409

(31)

Cryptographic Algorithms

410

(1)

Authentication Algorithms

410

(5)

Encryption Algorithms

415

(4)

Public Key Cryptographic Algorithms

419

(3)

Security Protocols: AH and ESP

422

(1)

Authentication Header (AH)

422

(4)

Encapsulating Security Payload (ESP)

426

(4)

AH and ESP Together

430

(1)

Security Associations

431

(1)

IPsec Databases

432

(1)

SA and Key Management Techniques

432

(1)

IKEv1

432

(5)

IKEv2

437

(1)

Putting It All Together: IPsec Packet Processing

438

(1)

Outbound Processing

438

(1)

Inbound Processing

439

(1)

Deploying IPsec VPNs: Fundamental Considerations

440

(80)

Selecting and Configuring IKE Policies for Automated SA and Key Management

441

(1)

Selecting the Appropriate Method of IKE Authentication

441

(20)

Selecting Cryptographic Parameters for IKE Policies

461

(6)

Selecting and Configuring IPsec Transforms

467

(1)

Selecting Security Protocols in an IPsec Transform Set

467

(1)

Selecting Hash Algorithms in an IPsec Transform Set

468

(1)

Selecting Encryption Algorithms for Use with ESP

469

(1)

Selecting Compression in an IPsec Transform Set

470

(1)

Configuring IPsec Transform Sets

471

(4)

Designing and Configuring Crypto Access Lists

475

(4)

Pulling Everything Together with a Crypto Map

479

(2)

Complete IPsec VPN Gateway Configurations

481

(4)

Transporting Multiprotocol and Multicast Traffic over an IPsec VPN

485

(1)

Configuring GRE/IPsec Tunnels

485

(10)

Configuring VTIs

495

(4)

Manual SA and Key Management

499

(3)

Deploying IPsec VPNs with NAT/PAT

502

(1)

How NAT/PAT Breaks IPsec

503

(14)

Getting Around Issues with NAT/PAT and IPsec Tunnels

517

(2)

Allowing IPsec to Traverse a Firewall

519

(1)

Summary

520

(1)

Review Questions

521

(2)

Scaling and Optimizing IPsec VPNs

523

(184)

Scaling IPsec Virtual Private Networks

523

(70)

Reducing the Number of IPsec Tunnels Required in a VPN

525

(2)

Reducing IPsec VPN Configuration Complexity with TED and DMVPN

527

(1)

Tunnel Endpoint Discovery (TED)

528

(4)

Dynamic Multipoint Virtual Private Network (DMVPN)

532

(18)

Scaling IPsec VPNs with Digital Signature Authentication

550

(7)

Background to PKI Deployment

557

(22)

Deploying the PKI for an IPsec VPN: Considerations

579

(1)

Simplifying PKI Deployment with the IOS Certificate Server

580

(13)

Ensuring High Availability in an IPsec VPN

593

(63)

High Availability with HSRP

594

(1)

Stateless IPsec High Availability

595

(16)

Stateful IPsec High Availability

611

(17)

High Availability with GRE

628

(1)

High Availability with Point-to-Point GRE Tunnels

628

(14)

High Availability with DMVPN

642

(14)

Designing QoS for IPsec VPNs

656

(17)

Using DiffServ in an IPsec VPN

656

(3)

Configuring QoS with the qos pre-classify Command

659

(6)

IPsec Anti-Replay Considerations with QoS

665

(6)

Other Considerations When Provisioning QoS for an IPsec VPN

671

(2)

MTU and Fragmentation Considerations in an IPsec VPN

673

(31)

IPsec Packet Overhead

673

(1)

Overhead Added by Security Protocols

673

(1)

Overhead Added in Transport and Tunnel Modes

674

(1)

Overhead Added by a GRE Tunnel

674

(1)

Calculating Total Overhead

675

(2)

Ensuring That Large IPsec Packets Are Not Fragmented or Dropped

677

(1)

Fragmentation of IPsec and GRE/IPsec Packets

678

(1)

Fragmentation of Plain IPsec Packets

679

(6)

Fragmentation of GRE/IPsec Packets

685

(1)

PMTUD and IPsec Packet Drops

686

(9)

Solutions for IPsec Packet Fragmentation and Drops

695

(9)

Summary

704

(1)

Review Questions

704

(3)

Part III Remote Access VPNs

707

(276)

Designing and Implementing L2TPv2 and L2TPv3 Remote Access VPNs

709

(96)

Benefits and Drawbacks of L2TP Remote Access VPNs

711

(1)

Operation of L2TP Voluntary/Client-Initiated Tunnel Mode

712

(12)

L2TPv2 Message Formats and Message Types

713

(3)

L2TP/IPsec Remote Access VPN Setup (Voluntary/Client-Initiated Tunnel Mode)

716

(8)

Implementing L2TP Voluntary/Client-Initiated Tunnel Mode Remote Access VPNs

724

(58)

Configuring PSK Authentication for L2TP/IPsec Voluntary Tunnel Mode VPNs

725

(1)

Configuring a Cisco VPN 3000 Concentrator as an L2TP/IPsec VPN Gateway for PSK Authentication

725

(7)

Configuring a Cisco IOS Router as an L2TP/IPsec VPN Gateway for PSK Authentication

732

(4)

Configuring Windows L2TP/IPsec Remote Access VPN Clients for PSK Authentication

736

(7)

Implementing Digital Signature (Digital Certificate) Authentication with L2TP/IPsec Voluntary/Client-Initiated Tunnel Mode Remote Access VPNs

743

(1)

Configuring the L2TP/IPsec VPN Gateway for Digital Signature Authentication

743

(16)

Configuring Windows L2TP/IPsec Remote Access Clients for Digital Signature (Digital Certificate) Authentication

759

(6)

Verifying L2TP/IPsec Voluntary Tunnel Mode Remote Access VPNs

765

(1)

Verifying L2TP/IPsec VPNs on the VPN Gateway

765

(4)

Verifying L2TP/IPsec VPNs on Remote Access Client Workstations

769

(4)

Configuring L2TP/IPsec Remote Access VPNs to Transit NAT Devices

773

(1)

Configuring L2TP/IPsec Remote Access Clients to Support NAT-T

773

(2)

Configuring the L2TP/IPsec VPN Gateway to Support NAT-T

775

(1)

Ensuring That More Than One Windows L2TP/IPsec Remote Access Client Can Successfully Connect to a VPN Gateway from Behind the Same NAT Device (When Using NAT-T)

776

(1)

Deploying L2TP Voluntary/Client-Initiated VPNs on Cisco IOS Routers

776

(6)

Designing and Implementing L2TP Compulsory/NAS-Initiated Tunnel Mode Remote Access VPNs

782

(16)

L2TP Compulsory Tunnel Mode Setup: LAC Perspective

784

(2)

L2TP Compulsory Tunnel Mode Setup: LNS Perspective

786

(2)

Configuring the LAC for Compulsory Tunnel Mode

788

(2)

Configuring Tunnel Definitions on a RADIUS Server

790

(4)

Configuring the LNS for Compulsory Tunnel Mode

794

(4)

Integrating L2TP Remote Access VPNs with MPLS VPNs

798

(4)

Summary

802

(1)

Review Questions

803

(2)

Designing and Deploying IPsec Remote Access and Teleworker VPNs

805

(100)

Comparing IPsec Remote Access VPNs with Other Types of Remote Access VPNs

806

(1)

Understanding IKE in an IPsec Remote Access VPN Environment

807

(9)

Resolving Issues Relating to User Authentication

810

(1)

Extended Authentication Within IKE (Xauth)

810

(2)

Hybrid Authentication Mode for IKE

812

(1)

IKE Challenge/Response for Authenticated Cryptographic Keys (CRACK)

813

(1)

Resolving Issues Relating to Negotiation of Attributes Such as IP Addresses, DNS Server Addresses, and WINS Server Addresses

814

(2)

Deploying IPsec Remote Access VPNs Using Preshared Key and Digital Signature Authentication

816

(85)

Implementing IPsec Remote Access VPNs Using Preshared Key Authentication

816

(1)

Configuring an IPsec Remote Access VPN Gateway for Preshared Key Authentication

817

(15)

Configuring the Cisco VPN Client for IKE Preshared Key Authentication

832

(1)

Designing and Deploying IPsec Remote Access VPNs Using Digital Signature Authentication

833

(1)

Implementing Digital Signature Authentication on IPsec Remote Access VPN Gateways

834

(10)

Deploying IKE Digital Signature Authentication on IPsec Remote Access VPN Clients

844

(3)

Implementing IPsec Remote Access VPNs Using Hybrid Authentication

847

(1)

Deploying Hybrid Authentication on the Cisco VPN 3000 Concentrator

848

(1)

Configuring Hybrid Authentication on Cisco VPN Clients

849

(1)

Verifying and Debugging IPsec Remote Access VPNs

850

(1)

Verifying IPsec Remote Access VPNs on Cisco VPN 3000 Concentrators

850

(2)

Verifying IPsec Remote Access VPNs on Cisco IDS VPN Gateways

852

(6)

Verifying IPsec Remote Access VPNs on the Cisco ASA

858

(2)

Verifying IPsec Remote Access VPNs on Cisco VPN Clients

860

(2)

Configuring NAT Transparency for IPsec Remote Access VPNs

862

(1)

Overcoming Issues with NAT/PAT When Using Cisco VPN 3000 Concentrators

863

(1)

Overcoming Issues with NAT/PAT When Using Cisco IOS VPN Gateways

864

(1)

Overcoming Issues with NAT/PAT When Using the Cisco ASA 5500

865

(1)

Configuring NAT/PAT Transparency on Cisco VPN Clients

865

(1)

IPsec Remote Access/Telecommuter VPNs Using Easy VPN (EZVPN)

865

(4)

Integrating IPsec with MPLS VPNs

869

(1)

Providing IPsec Remote Access Connectivity to MPLS VPNs

870

(6)

Integrating IPsec Site-to-Site VPNs with MPLS VPNs

876

(4)

High Availability: Enabling Redundancy for IPsec Remote Access VPNs

880

(1)

Load Balancing of IPsec Remote Access VPN Connections over a Number of VPN Gateways at the Same Central Site

881

(6)

Failover Between a Number of VPN Gateways at the Same Central Site Using VRRP

887

(2)

Using Backup VPN Gateways (Servers) at Geographically Dispersed VPN Gateways

889

(3)

Placing IPsec Remote Access VPN Gateways in Relation to Firewalls

892

(2)

Considerations When Building Wireless IPsec VPNs

894

(4)

Allowing or Disallowing Split Tunneling for Remote Access VPN Clients

898

(3)

Summary

901

(1)

Review Questions

902

(3)

Designing and Building SSL Remote Access VPNs (WebVPN)

905

(78)

Comparing SSL VPNs to Other Types of Remote Access VPNs

906

(1)

Understanding the Operation of SSL Remote Access VPNs

907

(17)

SSL Overview: TCP, the Record Layer, and the Handshake Protocol

908

(2)

Establishing an SSL Connection Between a Remote Access VPN User and an SSL VPN Gateway Using an RSA Handshake

910

(3)

SSL Connection Establishment: ClientHello Message

913

(1)

SSL Connection Establishment: ServerHello, Certificate, and ServerHelloDone Messages

914

(2)

SSL Connection Establishment: ClientKeyExchange, ChangeCipherSpec, and Finished Messages

916

(2)

SSL Handshake: SSLv2, SSLv3, or TLS?

918

(2)

Understanding the SSL RSA Handshake with Client Authentication

920

(2)

Resuming an SSL Session

922

(1)

Closing an SSL Connection

923

(1)

Using Clientless SSL Remote Access VPNs (WebVPN) on the Cisco VPN 3000 Concentrator

924

(24)

Completing Basic SSL Remote Access VPN Access Configuration Tasks on the Cisco VPN 3000 Concentrator

925

(1)

Step 1: Enroll and Obtain a (SSL) Certificate for the VPN 3000 Concentrator from a Certificate Authority (Optional)

925

(1)

Step 2: Enable WebVPN for Relevant User Groups

926

(1)

Step 3: Specify Acceptable Versions of SSL and Configure Cryptographic Algorithms Associated with SSL Cipher Suites (Optional)

926

(2)

Step 4: Enable SSL on the VPN 3000 Concentrator's Public Interface

928

(2)

Configuring File and Web Server Access via SSL Remote Access VPNs

930

(1)

Step 1: Configure One or More NetBIOS Name Servers

931

(1)

Step 2: Configure Web VPN File Servers and Shares

931

(1)

Step 3: Enable File Access for the WebVPN User Group(s)

932

(5)

Enabling TCP Applications over Clientless SSL Remote Access VPNs

937

(6)

Configuring E-mail Proxy for SSL Remote Access VPN Users

943

(5)

Implementing Full Network Access Using the Cisco SSL VPN Client

948

(4)

Installing and Enabling the Cisco VPN Client Software

948

(2)

Understanding Remote Access Connectivity When Using the Cisco SSL VPN Client

950

(2)

Strengthening SSL Remote Access VPNs Security by Implementing Cisco Secure Desktop

952

(11)

Installing the Cisco Secure Desktop

954

(1)

Configuring the Cisco Secure Desktop for Windows Clients

954

(3)

Configuring the Windows Cache Cleaner

957

(1)

Configuring VPN Feature Policy Settings

958

(1)

Configuring Secure Desktop Options

959

(2)

Configuring Cache Cleaner Options for Mac and Linux Users

961

(1)

Enabling the Cisco Secure Desktop

962

(1)

Enabling SSL VPNs (WebVPN) on Cisco IOS Devices

963

(7)

Step 1: Configure Domain Name and Name Server Addresses

964

(1)

Step 2: Configure Remote AAA for Remote Access User Login Authentication

964

(1)

Step 3: Enroll the IOS Router with a CA and Obtain an Identity Certificate

965

(1)

Step 4: Enable WebVPN

966

(1)

Step 5: Configure Basic SSL Parameters

966

(1)

Step 6: Customize Login and Home Pages (Optional)

967

(2)

Step 7: Specify URLs

969

(1)

Step 8: Configure Port Forwarding

969

(1)

Deploying SSL VPNs (WebVPN) on the ASA 5500

970

(10)

Step 1: Configure the HTTP Server

971

(1)

Step 2: Enable WebVPN on the Outside Interface

971

(1)

Step 3: Configure the WebVPN User Group Policy and Attributes

971

(1)

Step 4: Configure Remote Access User Authentication

972

(1)

Step 5: Specify URL Lists

973

(1)

Step 6: Configure File Access, Entry, and Browsing

974

(1)

Step 7: Configure Port Forwarding

975

(1)

Step 8: Configure E-mail Proxy

976

(1)

Step 9: Specify an SSL Trustpoint, SSL Version, and SSL Encryption Algorithm (Optional)

977

(1)

Specifying an SSL Trustpoint

977

(1)

Restricting Acceptable SSL Versions

977

(1)

Configuring the Cryptographic Algorithms That the ASA Will Negotiate with Remote Access Clients

978

(1)

Step 10: Customize Login and Home Pages (Optional)

978

(1)

Verifying SSL VPNs on the ASA

979

(1)

Summary

980

(1)

Review Questions

981

(2)

Part IV Appendixes

983

(2)

Appendix A VPLS and IPLS Layer 2 VPNs

985

(12)

Understanding VPLS

985

(6)

Ensuring a Loop-Free Topology in a VPLS

987

(2)

Frame Forwarding over a VPLS

989

(1)

VPLS MAC Address Learning

990

(1)

Hierarchical VPLS (H-VPLS) Deployments

990

(1)

Understanding IPLS

991

(4)

Unicast and Broadcast/Multicast Pseudowires in IPLS

992

(2)

Unicast and Broadcast/Multicast Forwarding in IPLS

994

(1)

Summary: Comparing VPLS and IPLS

995

(2)

Appendix B Answers to Review Questions

997

(9)

Chapter 1

997

(1)

Chapter 2

997

(1)

Chapter 3

998

(1)

Chapter 4

999

(1)

Chapter 5

1000

(2)

Chapter 6

1002

(1)

Chapter 7

1003

(1)

Chapter 8

1004

(1)

Chapter 9

1005

(1)

Chapter 10

1006

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Comparing, Designing, And Deploying Vpns

Summary

Table of Contents

Supplemental Materials

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Comparing, Designing, And Deploying Vpns

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Table of Contents

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