Secure Computing Soft-PK Version 5.1.3 Build 4, SafeNet manual Extended authentication

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Identifying authentication requirements

Extended authentication

In addition to the normal authentication checks inherent during the negotiation process at the start of every VPN association, Extended Authentication goes one step further by requiring the person requesting the VPN connection to validate their identity.

Depending on the authentication method you select, the person must provide a unique user name and password, a special passcode, or one-time password before the VPN association is established. For example, assume you configure a VPN association to use Extended Authentication and that you select the standard password process as the form of authentication. When a person attempts to establish a VPN connection, Sidewinder will perform the standard VPN negotiations but in addition will issue a request for the proper password. The person initiating the VPN connection request must then enter the proper password at their workstation before the connection will be made.

The Extended Authentication option is most useful if you have travelling employees that connect remotely to your network using laptop computers. If a laptop computer is stolen, without Extended Authentication it might be possible for an outsider to illegally access your network. This is because the information needed to establish the VPN connection (the self-signed certificate, etc.) is saved within the VPN client software. When Extended Authentication is used, however, the user is required to enter an additional piece of authentication information that is not saved on the computer—either a password, passcode, or PIN. This additional level of authentication renders the VPN capabilities of the laptop useless when in the hands of a thief.

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Planning Your VPN Configuration

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Contents VPN Administration Guide Page Copyright Notice Printing History B L E O F C O N T E N T S Installing and Working with Soft-PK About this Guide Who should read this guide?How this guide is OrganizedAbout digital certificates About Soft-PKAbout Sidewinder Viewing and printing this document onlineViii Getting Started About this chapterAbout Soft-PK & Sidewinder VPNs Requirements Sidewinder and other network requirementsSoft-PK requirements Roadmap to deploying your VPNs Sidewinder system 4c1 Define remote identities within SidewinderPlan your VPN configuration Satisfy Sidewinder, network, & system requirementsIf using pre-shared keys passwords Create/Request the digital certificatesConfigure the VPN connections on the Sidewinder Troubleshoot any connection problems Planning Your VPN Configuration Identifying basic VPN connection needs Private key file Identifying authentication requirementsUsing digital certificate authentication Certificate file with public keyFor a small number of VPN Closer look at self-signed certificatesNo CA needed ClientsUnderstanding pre-shared key authentication Closer look at CA-based certificatesExtended authentication Determining where you will terminate your VPNs VPN tunnel terminating on trusted burbDefining a virtual burb Select Firewall Administration Burb ConfigurationMore about virtual burbs and VPNs Understanding Sidewinder client address pools SidewinderUnderstanding Sidewinder client address pools Configuring Sidewinder for Soft-PK Clients Enable Enable the cmd, egd, and isakmp serversClick Apply Configure the Isakmp server Select VPN Configuration Isakmp ServerConfiguring ACL & proxies entries for VPN connections Managing Sidewinder self- signed certs Creating & exporting a firewall certificateMail Address Specify the following Firewall Certificate settingsClick OK when done Select the Remote Certificates tab. Click New Select Services Configuration Certificate ManagementCreating & exporting remote certificates Key File Specify the following Remote Certificate settingsClick Add to add the certificate to the Certificates list GeneratedReturn to for each remote client Managing CA- based certificates Defining a CA to use and obtaining the CA root certRequesting a certificate for the firewall Retrieve the key, revoke, etc Specify the firewall certificate informationClick Add to send the enrollment request Determining identifying information for client certificates Defining remote client identities in Sidewinder Certificate Identities defined on the firewallManaging pre- shared keys passwords Configuring the VPN on the Sidewinder New button to specify the IP Address / Hostname Field Setting Local Network/IPEnabled Select Yes Burb Example, if you specify 24 with an IP addressType Firewall to the remote client Value Require Extended Enable this checkbox AuthenticationCertificate VPN from the list provided Firewall Identity This field cannot be editedEdited TypeClient Remote Identity Save your settings!4. Click Add to save the settingsClick Close Page Installing and Working with Soft-PK Soft-PK installation notes Starting Soft-PK Determining Soft-PK status from icon variationsMeans Soft-PK security policy is currently active Right-click the Soft-PK tray icon to access menuActivating/Deactivating Soft-PK Security Policy Editor About the Soft-PK program optionsCertificate Manager Log ViewerSetting up Sidewinder self-signed certificates Managing certificates on Soft-PKSetting up CA-based certificates Select the Generate Exportable Key check box Click Advanced to select a certificate service providerGet your CA administrator to approve your request Importing certificate in Soft-PK Verification window Import Certificate Password Window Importing a personal certificate into Soft-PKCertificate file Configuring a security policy on the Soft-PK Select Options Secure Specified ConnectionsSpecify the interface information If using digital certificatesEnable the Connect using Secure Gateway Tunnel box New connection Named SecureVPNConfiguring a security policy on the Soft-PK Encryption and Data Integrity/Algorithms fields SA Life Select Unspecified to default to Sidewinder settings Optional Click Save to save the policy on this systemPage Deploying Soft-PK to Your End Users Format OverviewWord Cannot modify Soft-PK setup.exe file and supporting filesSecurity policy Specifying dial-up network instructions Specifying installation instructionsCustomizing the user worksheet Specifying certificate import/request instructions Specifying security policy instructions Specifying basic connection informationSoft-PK Log Viewer About this appendixSoft-PK Connection Monitor More about the Connection Monitor To view the detailsSidewinder troubleshooting commands Page Part Number 86-0935037-A