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AnyConnect Client and New Windows Installations, Adding a Security Appliance to the List of Trusted - used

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Chapter 2 Common AnyConnect VPN Client Installation and Configuration Procedures Before You Install the AnyConnect Client The procedure varies by browser. See the procedures that follow this section. - Make sure the Common Name (CN) in security appliance certificates matches the name clients use to connect to it. By default, the security appliance certificate CN field is its IP address. If clients use a DNS name, change the CN field on the security appliance certificate to that name. • The Cisco Security Agent (CSA) might display warnings during the AnyConnect client installation. Current shipping versions of CSA do not have a built-in rule that is compatible with the AnyConnect client. You can create the following rule using CSA version 5.0 or later by following these steps: Step 1 Step 2 In the Rule Module: "Cisco Secure Tunneling Client Module", add a FACL: Priority Allow, no Log, Description: "Cisco Secure Tunneling Browsers, read/write vpnweb.ocx" Applications in the following class: "Cisco Secure Tunneling Client - Controlled Web Browsers" Attempt: Read file, Write File On any of these files: @SYSTEM\vpnweb.ocx Application Class: "Cisco Secure Tunneling Client - Installation Applications" add the following process names: **\vpndownloader.exe @program_files\**\Cisco\Cisco AnyConnect VPN Client\vpndownloader.exe This rule will be built in to a future release of CSA. • We recommend that Microsoft Internet Explorer (MSIE) users add the security appliance to the list of trusted sites, or install Java. Doing so enables the ActiveX control to install with minimal interaction from the user. This is particularly important for users of Windows XP SP2 with enhanced security. Windows Vista users must add the security appliance to the list of trusted sites in order to use the dynamic deployment feature. Refer to the following sections for instructions. AnyConnect Client and New Windows Installations In rare circumstances, if you install the AnyConnect client on a computer that has a new or clean Windows installation, the AnyConnect client might fail to connect, and your computer might display the following message: The required system DLL (filename) is not present on the system. This could occur if the computer does not have the file MSVCP60.dll or MSVCRT.dll located in the winnt\system32 directory. For more information about this problem, see the Microsoft Knowledge Base, article 259403, at http://support.microsoft.com/kb/259403. Adding a Security Appliance to the List of Trusted Sites (Internet Explorer) To add a security appliance to the list of trusted sites, use Microsoft Internet Explorer and do the following steps. OL-12950-012 Cisco AnyConnect VPN Client Administrator Guide 2-3

Section	Page
About This Guide 7	3
chapter 1	3
Introduction 1	3
chapter 2	3
Common AnyConnect VPN Client Installation and Configuration Procedures 1	3
chapter 3	4
Installing the AnyConnect Client and Configuring the Security Appliance with ASDM 1	4
chapter 4	4
Installing the AnyConnect Client on a Security Appliance Using CLI 1	4
chapter 5	4
Configuring AnyConnect Features Using ASDM 1	4
chapter 6	4
Configuring AnyConnect Features Using CLI 1	4
chapter 7	5
Configuring and Using AnyConnect Client Operating Modes and User Profiles 1	5
chapter 8	5
Customizing and Localizing the AnyConnect Client 1	5
chapter 9	5
Monitoring and Maintaining the AnyConnect Client 1	5
appendix A	5
Sample AnyConnect Profile and XML Schema 1	5
appendix B	6
Using Microsoft Active Directory to Add the Security Appliance to the List of Internet Explorer Trusted Sites for Domain Users 1	6
Index	6
About This Guide	7
Document Objectives	7
Audience	7
Related Documentation	8
Document Organization	8
Document Conventions	9
Obtaining Documentation, Obtaining Support, and Security Guidelines	10
Licensing	10
Introduction	11
AnyConnect Client Features	11
Remote User Interface	12
Getting and Installing the Files You Need	17
CSA Interoperability with the AnyConnect Client and Cisco Secure Desktop	17
Common AnyConnect VPN Client Installation and Configuration Procedures	19
Installing the AnyConnect Client	19
Before You Install the AnyConnect Client	20
Ensuring Automatic Installation of AnyConnect Clients	20
AnyConnect Client and New Windows Installations	21
Adding a Security Appliance to the List of Trusted Sites (Internet Explorer)	21
Adding a Security Certificate in Response to Browser Security Alert Windows	22
Replacing a Digital Certificate with a Trusted Certificate	25
Installing the AnyConnect Client on a User’s PC	26
Where to Find the AnyConnect Client Files to Install	26
Installing the AnyConnect Client Using the Microsoft Windows Installer on a PC Running Windows	26
Installing the AnyConnect Client on a PC Running Linux	27
Installing the AnyConnect Client on a PC Running MAC OSX	27
Installing the AnyConnect Client and Configuring the Security Appliance with ASDM	29
Installing the AnyConnect Client on a Security Appliance Using CLI	39
Enabling AnyConnect Client SSL VPN Connections Using CLI	40
Disabling Permanent Client Installation	42
Configuring AnyConnect Features Using ASDM	43
Enabling Datagram Transport Layer Security (DTLS) with AnyConnect (SSL) Connections	43
Configuring DTLS	44
Prompting Remote Users	46
Enabling IPv6 VPN Access	47
Enabling Modules for Additional AnyConnect Features	47
Configuring, Enabling, and Using Other AnyConnect Features	48
Configuring Certificate-only Authentication	48
Using Compression	51
Changing Compression Globally	52
Changing Compression for Groups and Users	52
Enabling AnyConnect Keepalives	53
Enabling AnyConnect Rekey	54
Enabling and Adjusting Dead Peer Detection	56
Configuring the Dynamic Access Policies Feature of the Security Appliance	57
Cisco Secure Desktop Support	57
Configuring AnyConnect Features Using CLI	59
Enabling Datagram Transport Layer Security (DTLS) with AnyConnect (SSL) Connections	59
Enabling DTLS Globally for a Specific Port	60
Enabling DTLS for Specific Groups or Users	60
Prompting Remote Users	60
Enabling IPv6 VPN Access	61
Enabling Modules for Additional AnyConnect Features	62
Configuring, Enabling, and Using Other AnyConnect Features	63
Configuring Certificate-only Authentication	63
Using Compression	63
Configuring the Dynamic Access Policies Feature of the Security Appliance	64
Cisco Secure Desktop Support	64
Enabling AnyConnect Rekey	64
Enabling and Adjusting Dead Peer Detection	65
Enabling AnyConnect Keepalives	66
Configuring and Using AnyConnect Client Operating Modes and User Profiles	67
AnyConnect Client Operating Modes	67
Using the AnyConnect CLI Commands to Connect (Standalone Mode)	67
Connecting Using WebLaunch	69
User Log In and Log Out	70
Logging In	70
Logging Out	70
Configuring and Using User Profiles	70
Enabling AnyConnect Client Profile Downloads	71
Configuring Profile Attributes	76
Enabling Start Before Logon (SBL) for the AnyConnect Client	77
XML Settings for Enabling SBL	77
CLI Settings for Enabling SBL	77
Configuring the ServerList Attribute	78
Configuring the Certificate Match Attribute	78
Certificate Key Usage Matching	78
Extended Certificate Key Usage Matching	79
Certificate Distinguished Name Mapping	79
Certificate Matching Example	81
Customizing and Localizing the AnyConnect Client	83
Customizing the End-user Experience	83
Language Translation (Localization) for User Messages	85
Understanding Language Translation	85
Configuring Language Localization Using ASDM	86
Creating or Modifying a Translation Table Using ASDM	88
Import/Export Language Localization	89
Creating or Modifying a Translation Table Using CLI	90
Monitoring and Maintaining the AnyConnect Client	95
Viewing AnyConnect Client and SSL VPN Sessions	95
Adjusting MTU Size Using ASDM	96
Adjusting MTU Size Using CLI	96
Logging Off AnyConnect Client Sessions	97
Updating AnyConnect Client and SSL VPN Client Images	98
Sample AnyConnect Profile and XML Schema	99
Sample AnyConnect Profile	99
Sample AnyConnect Profile Schema	101
Using Microsoft Active Directory to Add the Security Appliance to the List of Internet Explorer Trusted Sites for Domain Users	113
Index	115
A	115
C	115
D	115
E	115
F	115
G	116
I	116
K	116
L	116
M	116
N	116
O	116
P	117
R	117
S	117
T	117
U	117
V	118
W	118

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2-3

Cisco AnyConnect VPN Client Administrator Guide

OL-12950-012

Chapter 2

Common AnyConnect VPN Client Installation and Configuration Procedures

Before You Install the AnyConnect Client

The procedure varies by browser. See the procedures that follow this section.

–

Make sure the Common Name (CN) in security appliance certificates matches the name clients

use to connect to it. By default, the security appliance certificate CN field is its IP address. If

clients use a DNS name, change the CN field on the security appliance certificate to that name.

•

The Cisco Security Agent (CSA) might display warnings during the AnyConnect client installation.

Current shipping versions of CSA do not have a built-in rule that is compatible with the AnyConnect

client. You can create the following rule using CSA version 5.0 or later by following these steps:

Step 1

In the Rule Module: “Cisco Secure Tunneling Client Module”, add a FACL:

Priority Allow, no Log, Description: “Cisco Secure Tunneling Browsers, read/write

vpnweb.ocx”

Applications in the following class: “Cisco Secure Tunneling Client - Controlled Web

Browsers”

Attempt: Read file, Write File

On any of these files: @SYSTEM\vpnweb.ocx

Step 2

Application Class: “Cisco Secure Tunneling Client - Installation Applications” add the following

process names:

**\vpndownloader.exe

@program_files\**\Cisco\Cisco AnyConnect VPN Client\vpndownloader.exe

This rule will be built in to a future release of CSA.

•

We recommend that Microsoft Internet Explorer (MSIE) users add the security appliance to the list

of trusted sites, or install Java. Doing so enables the ActiveX control to install with minimal

interaction from the user. This is particularly important for users of Windows XP SP2 with enhanced

security. Windows Vista users

must

add the security appliance to the list of trusted sites in order to

use the dynamic deployment feature. Refer to the following sections for instructions.

AnyConnect Client and New Windows Installations

In rare circumstances, if you install the AnyConnect client on a computer that has a new or clean

Windows installation, the AnyConnect client might fail to connect, and your computer might display the

following message:

The required system DLL (

filename

) is not present on the system.

This could occur if the computer does not have the file MSVCP60.dll or MSVCRT.dll

located in the

winnt\system32 directory. For more information about this problem, see the Microsoft Knowledge Base,

article 259403, at http://support.microsoft.com/kb/259403.

Adding a Security Appliance to the List of Trusted Sites (Internet Explorer)

To add a security appliance to the list of trusted sites, use Microsoft Internet Explorer and do the

following steps.