Cisco Systems 4.2 manual Audience, Organization

Page 9

Preface

Audience

This guide is for security administrators who use Cisco Secure Access Control Server (ACS), and who set up and maintain network and application security.

Organization

This document contains:

Chapter 1, “Overview of ACS Configuration”—Provides an overview of ACS configuration, including a summary of configuration steps and configuration flowchart that show the sequence of configuration steps.

Chapter 2, “Deploy the Access Control Servers”—Describes factors to consider when deploying ACS, including the access type, network topology, and whether database synchronization and replication are required.

Chapter 3, “Configuring New Features in ACS 4.2”—Describes how to configure the most important new features in ACS 4.2.

Chapter 4, “Using RDBMS Synchronization to Create dACLs and Specify Network

Configuration”—Describes how to configure new RDBMS synchronization features in ACS 4.2 and run RDBMS Sync remotely on the ACS Solution Engine.

Chapter 5, “Password Policy Configuration Scenario”—Describes how to configure Sarbanes-Oxley (SOX) support when adding administrators.

Chapter 6, “Agentless Host Support Configuration Scenario”—Describes how to configure ACS for agentless host support (MAC authentication bypass).

Chapter 7, “PEAP/EAP-TLS Configuration Scenario”—Describes how to configure ACS for PEAP/EAP-TLS support.

Chapter 8, “Syslog Logging Configuration Scenario”—Describes how to configure ACS to log syslog messages.

Chapter 9, “NAC Configuration Scenario”—Describes how to configure ACS in a Cisco Network Admission Control (NAC) and Microsoft Network Access Protection (NAP) environment.

“Glossary”—Lists common terms used in ACS.

Configuration Guide for Cisco Secure ACS 4.2

 

OL-14390-02

ix

 

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Contents Americas Headquarters Configuration Guide for Cisco Secure ACSPage N T E N T S Deploying ACS in a NAC/NAP Environment Error Messages Overview Profile Setup Profile Setup Organization AudienceProduct Documentation ConventionsConvention Boldface fontAvailable Formats Related Documentation ACSTroubleshooting.htmlLicense Issues OpenSSL/Open SSL ProjectOpenSSL License Original SSLeay License Summary of Configuration Steps Overview of ACS ConfigurationClick System Configuration Click Interface ConfigurationPeap EAP-FAST EAP-TLS Leap EAP-MD5 Overview of ACS Configuration Summary of Configuration Steps EAP-TLS, SSL Configuration FlowchartOL-14390-02 Determining the Deployment Architecture Deploy the Access Control ServersAccess Types Wired LAN AccessSize Users Campus LAN Small LAN EnvironmentACS in a Campus LAN Geographically Dispersed Wired LANSimple Wlan Wireless Access TopologyCampus Wlan Regional Wlan Setting 6shows a regional Wlan Large Enterprise Wlan SettingSmall Dial-Up Network Access Dial-up Access TopologySmall Dial-up Network Large Dial-Up Network AccessPlacement of the Radius Server Determining How Many ACSs to Deploy ScalabilityNumber of Users Number of Network Access Servers LAN Versus WAN Deployment Number of LANs in the NetworkWAN Latency and Dependability Deploying ACS Servers to Support Server Failover Configuration components for replication-What is replicatedLoad Balancing and Failover Database Replication ConsiderationsReplication Design Database Synchronization ConsiderationsComponent Description Deploying ACS in a NAC/NAP EnvironmentACS Cisco AAA server productAdditional Topics Remote Access PolicySecurity Policy Administrative Access PolicySeparation of Administrative and General Users Network Latency and Reliability Database ConsiderationsNumber of Users Type of DatabaseOL-14390-02 New Global EAP-FAST Configuration Options Configuring New Features in ACSPAC Option DescriptionUse PAC and Do Not Use PAC Options 2shows the new options on the NAP Protocols Disabling NetBIOSTo disable NetBIOS over TCP/ IP in Windows 2000, XP, or Configuring ACS 4.2 Enhanced Logging FeaturesRight-clickMy Network Places and choose Properties Click Internet Protocol TCP/IP and choose PropertiesClick Submit Configuring Group Filtering at the NAP LevelCheck the Disable Dynamic users check box Configuring Syslog Time Format in ACSOption to Not Log or Store Dynamic Users Active Directory Multi-Forest SupportClick Database Configuration RSA Support on the ACS SEClick Submit and Restart Click Configure Click Create New ConfigurationClick RSA SecureID Token Server Click Upload scconf.recExternal User Databases Configuration page opens FTP Server Login Password DirectoryPurging the RSA Node Secret File FieldClick Configure Ldap Configuring RSA SecurID Token and Ldap Group MappingClick Purge Node Secret Click RSA SecurID Token and Ldap Group MappingChoose Process all usernames RSA SecurID Token and Ldap Group Mapping ConfigurationConfiguring New Features in ACS RSA Support on the ACS SE Configuring New Features in ACS RSA Support on the ACS SE Uid=joesmith,ou=members,ou=administrators,o=cisco Turning Ping On and Off ACS 4.2 provides enhanced support for Rdbms Synchronization New Rdbms Synchronization Features in ACS ReleaseEnable dACLs Using Rdbms Synchronization to Configure dACLsCreate a Text File to Define the dACLs Check the Rdbms Synchronization check boxExample 4-1shows a sample text file Code the information in the file as described in TableKeyword Value Example 4-2shows a sample accountActions CSV file Sample accountActions CSV FileConfigure Rdbms Synchronization to Use a Local CSV File Action Code Name Required DescriptionClick Rdbms Synchronization Rdbms Synchronization Setup Page ACS for Windows Configuration Guide for Cisco Secure ACS OL-14390-02 Running Rdbms Synchronization from the ACS GUI Perform Rdbms SynchronizationRunning CSDBSync Manually to Create the dACLs ACS for WindowsView the dACLs Performing Rdbm Synchronization Using a ScriptEntry for the Sample dACL Error Messages ExplanationNAF On the ACS is configured correctly User has write access to the ACSEnabled correctly in the ACS GUI Reading, Updating, and Deleting dACLsReaddacl UpdatedaclDaclreplace DeletedaclDeleteuserdacl Ungn Updateuserdacl UNGN, VNUpdatenas Creating, Reading, Updating and Deleting AAA clientsReadnas OL-14390-02 Password Policy Configuration Scenario Add and Edit a New Administrator Account Administration Control Server 4.2, Administrators and Administrative Policy Configure Password PolicyTo specify password restrictions Privileges that you want to grantAdministrator Password Policy Setup Specify Password Lifetime Options Specify Password Validation OptionsPassword Lifetime Options Password Inactivity OptionsSpecify Password Inactivity Options Configure Session PolicySpecify Incorrect Password Attempt Options Incorrect Password Attempt Options section, configureSession Policy Setup Click Access Policy Configure Access PolicyAccess Policy Setup page appears, as shown in Figure Before You BeginClick the appropriate IP Address Filtering option Access Policy SetupIP address ranges. The ranges are always inclusive that is, IP Address Ranges table contains ten rows for configuringRange includes the Start and End IP addresses Must differ only in the last octet Class C formatConfiguration ACS Certificate Setup to access Viewing Administrator Entitlement ReportsInstallation process. With SSL enabled, ACS begins using Displays an errorClick Entitlement Reports View Privilege ReportsOL-14390-02 Overview of Agentless Host Support Agentless Host Support Configuration Scenario1shows the flow of MAB information Using Audit Servers and Game Group FeedbackSee Configure a Radius AAA Client, page 6-5for details Configure a Radius AAA clientInstall ACS Basic Configuration Steps for Agentless Host SupportConfigure a Radius AAA Client Click Submit + Apply Install and Set Up an ACS Security CertificateGo to selecteddrive\Certs Obtain Certificates and Copy Them to the ACS HostSelect Install Certificate Enable Security Certificates on the ACS InstallationClick ACS Certificate Setup Click Install ACS Certificate Click SubmitInstall the CA Certificate To install the CA CertificateAdd a Trusted Certificate Configure Ldap Support for MAB Configure an External Ldap Database for MAB SupportCreate one or more Ldap database configurations in ACS 802.1x device n 802.1x device n+1 Description of the Settings in the Sample Ldap SchemaHow the Ldap User Groups Work How the Subtrees WorkCreate One or More Ldap Database Configurations in ACS 1describes the attributes of the sample Ldap groupsClick Generic Ldap 6shows the Common Ldap Configuration section Specify the common Ldap configurationOL-14390-02 ACS SE Only Ldap Server Configuration SectionsConfigure User Groups for MAB Segments Enable Agentless Request Processing Create a New NAPClick Add Profile Profile Setup Profile Setup page opens, shown in FigureEnable Agentless Request Processing for a NAP You are now ready to enable agentless request processingCheck the check box for Allow Agentless Request Processing You are now ready to configure MAB settings Configure MAB13 MAC Address Input Area Click Internal ACS DBConfiguring Reports for MAB Processing Configure Logging and ReportsConfigure Game Group Feedback Configuration Steps for Audit Server SupportTo configure PEAP-TLS Configure security certificates Configure Security CertificatesConfigure global authentication settings Specify EAP-TLS optionsObtain Certificates and Copy Them to the ACS Host Enable Security Certificates on the ACS Installation Add a Trusted Certificate Install the CA CertificateConfigure Global Authentication Settings Click Global Authentication SetupGlobal Authentication Setup page opens, as shown in Figure Optional Configure Authentication Policy Specify EAP-TLS OptionsEAPMSCHAP2 EAP-GTC Overview Configuring Syslog LoggingClick Logging Logging page opens, shown in FigureLogging Configuration Enable Logging Facility Codes Format of Syslog Messages in ACS ReportsMessage Length Restrictions OL-14390-02 Install ACS NAC Configuration ScenarioThis section describes Perform Network Configuration TasksAdd AAA Client Configure the AAA Server Set Up System Configuration Click Submit and ApplyThis section describes the following tasks Set Up the ACS Certification Authority Click ACS Certificate SetupClick ACS Certification Authority Setup Edit the Certificate Trust List Choose ACS Certificate Setup Edit Certificate Trust ListInstall the ACS Certificate Set Up Global ConfigurationInstall ACS Certificate page opens, as shown in Figure Click the Read certificate from file radio buttonGlobal Authentication Setup Page appears, as shown in Figure Set Up Global AuthenticationGlobal Authentication Setup Allow EAP-GTC Allow EAP-MSCHAPv2Allow Posture Validation Click Submit + RestartSet Up EAP-FAST Configuration Click EAP-FAST ConfigurationEAP Fast Configuration page appears, as shown in Figure Check the Allow EAP-FASTcheck box -8, this is ACS NAC Server. However, this can be any stringProvisioning check boxes Configure the Logging Level Configure Logs and ReportsClick Service Control Check the Log to CSV Passed Authentications Report check box Check the Log to CSV Radius Accounting Report check box Add Remote Administrator Access Set Up Administration ControlClick Add Administrator Add Administrator page opens, as shown in Figure10 Add Administrator Click Grant All Set Up Shared Profile Components Configure Network Access Filtering OptionalClick Network Access Filtering 11 Edit Network Access Filtering Configure Downloadable IP ACLsTo add a new ACL Adding an ACLChoose Shared Profile Components Downloadable IP ACLs List of dACLs appears, as shown in Figure13 Downloadable IP ACLs Adding an ACE14 Downloadable IP ACL Content Configure Radius Authorization Components Saving the dACLNew ACL appears on the list of downloadable ACLs 16 Radius Authorization Components Click Radius Authorization Components17 RAC Attribute Add/Edit 18 Attribute Selection for the CiscoFullAccess RAC 19 Attribute Selection for the CiscoRestricted RAC Attribute Number Attribute Name DescriptionACL Add the Posture Attribute to the ACS Dictionary Configure an External Posture Validation Audit ServerClick Add Server Configure the External Posture Validation Audit Server20 External Posture Validation Audit Server Setup 21 Use These Audit Servers Section Configure Internal Posture Validation Policies Configure Posture Validation for NACClick Add Rule Click Internal Posture Validation SetupAdd/Edit Condition page appears, as shown in Figure Click Add Condition Set26 Edit External Posture Validation Servers Configure External Posture Validation Policies27 Add/Edit External Posture Validation Server Configure an External Posture Validation Audit Server 28 External Posture Validation Audit Server Setup 29 Use These Audit Servers Section 30 Audit Flow Settings and Game Group Feedback Sections Authorization Policy and NAC AuditSample NAC Profile Templates Set Up Templates to Create NAPsSample NAC Layer 3 Profile Template EAP-FAST GTC31 Create Profile From Template Profile Setup32 Profile Setup Page for Layer 3 NAC Template Protocols Policy for the NAC Layer 3 Template EAP Configuration section, Posture Validation is enabled34 Authentication Page for Layer 3 NAC Profile Template Authentication PolicySample NAC Layer 2 Template Sample Posture Validation RuleFrom the Template drop-down list, choose NAC L2 IP Go to Network Access Profiles To enable the profile setup36 Profile Setup Page for NAC Layer 2 Template ACS and Attribute-Value Pairs Default ACLs37shows the Protocols settings for the NAC Layer 2 template Protocols Settings38 Authentication Settings for NAC Layer 2 Template 39 Sample Posture Validation Policy for NAC Layer 2 Template Sample NAC Layer 2 802.1x Template40 Create Profile From Template 41 Profile Setup Page for NAC Layer 2 802.1x Template Protocols Policy 42 Protocols Setting for NAC Layer 802.1x TemplateAuthorization Policy Sample Wireless NAC L2 802.1x Template 45 Create Profile From Template 46 Profile Setup Page for Wireless NAC L2 802.1xTemplate 47 Protocols Setting for Wireless NAC 802.1x Template Authorization Policy Using a Sample Agentless Host Template 50 Create Profile From Template Profile Setup 52 Protocols Setting for Agentless Host for Layer 3 Template Map Posture Validation Components to Profiles Choose Network Access ProfilesChoose the relevant profile Posture Validation policy Enter a Name for the ruleClick Apply + Restart Click Back to return to the Posture Validation policyMap an Audit Server to a Profile Check the Do not reject when Audit failed check boxCheck the Allow Agentless Request Processing check box Click Select AuditOptional Configure Game Group Feedback Configure an external audit serverClick Apply and Restart Import an Audit Vendor File by Using CSUtil Import a Device-Type Attribute File by Using CSUtilImport NAC Attribute-Value Pairs Enable Posture Validation Configure Database Support for Agentless Host ProcessingConfigure an External Audit Server Restart ACS Navigation bar, click System Configuration\ACSInstallDir\bin\CSUtil -addAVP filename 56 External Posture Validation Audit Server Setup 57 Use These Audit Servers Section 58 Audit Flow Settings and Game Group Feedback Sections ACS Solution Engine Enable Game Group FeedbackUnix Mac Integrated DevicePDA Authentication agent installed, such as Cisco Trust Agent Being authenticatedResource usage Posture-validation serverGL-2 Authenticate the device, instead of using an IP addressGL-3 Network access Microsoft, and RSA Security submitted to the IetfRadius Attribute Component Updatenas Updateuserdacl AdduserACE Audit servers Configuring Configuring audit flow settings for 9-35,9-43,9-78CA certificate Installing Deleteuserdacl CreateuserdaclNAP ACS configuration for Configuring new features in ACS 4.2Specifying Certificate Binary Comparison for Layer 2 NAC 802.1x templateNAC NetbiosNAC/NAP NAC L2 IPReaddacl Readnas ReliabilityReading dACLs Regional Wlan Related documentation RSAInstalling the CA certificate Using Windows Certificate Import WizardPurging Node Secret file purging Sarbanes-Oxley Security policies Security protocolsSignificance Windows Certificate Import Wizard
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4.2 specifications

Cisco Systems, a global leader in IT and networking solutions, has consistently evolved to meet the demands of modern enterprises. One of its noteworthy offerings is Cisco Systems 4.2, a version that embodies a significant leap in networking technology and capability. With its rich set of features, Cisco Systems 4.2 caters to a wide range of industries, facilitating enhanced performance and security.

One of the main features of Cisco Systems 4.2 is its improved scalability. The architecture has been designed to support an ever-increasing number of devices and users, making it ideal for growing enterprises. The enhanced scalability allows organizations to expand their network capacities without compromising performance, ensuring seamless integration of new technologies and devices.

Another critical aspect of Cisco Systems 4.2 is its advanced security protocols. With cyber threats constantly evolving, Cisco prioritizes security in this version by offering robust features such as end-to-end encryption, improved firewall capabilities, and enhanced intrusion detection systems. These security enhancements provide organizations with peace of mind, knowing that their sensitive data and networks are well-protected from unauthorized access and potential threats.

Cisco Systems 4.2 also introduces intelligent automation features, which significantly streamline network management. Through the use of artificial intelligence and machine learning, Cisco enables organizations to automate routine tasks, reduce human error, and optimize performance. This automation not only enhances efficiency but also allows IT teams to focus on strategic initiatives rather than day-to-day maintenance.

Moreover, Cisco Systems 4.2 emphasizes infrastructure flexibility. The new architecture supports various deployment models, including on-premises, cloud, and hybrid environments. This flexibility enables organizations to adapt their networking strategies according to their specific needs and operational requirements, facilitating a more tailored approach to IT infrastructure.

Collaboration tools have also been enhanced in this version. Cisco Systems 4.2 integrates advanced communication solutions that empower teams to collaborate in real time, regardless of their geographical location. Features such as high-definition video conferencing, secure messaging, and file sharing enhance productivity and foster innovation across teams.

In summary, Cisco Systems 4.2 stands out as a forward-thinking networking solution with key features such as scalability, advanced security, intelligent automation, flexible infrastructure, and enhanced collaboration tools. These characteristics position Cisco Systems 4.2 as an invaluable asset for enterprises striving for digital transformation in an increasingly interconnected world. The ongoing innovation reflects Cisco's commitment to delivering cutting-edge technology solutions that drive business success and resilience.