| Dell 6.2

digital certificates; for XAuth clients using smart cards, the smart card digital certificates must be used for IKE authentication. The client is authenticated with the internal database on the controller.

On the controller, you need to configure the following:

1. Add entries for Cisco VPN XAuth clients to the controller’s internal database, or to an external RADIUS

NOTE: For each client, you need to create an entry in the internal database with the entire Principal name (SubjectAltname in X.509

certificates) or Common Name as it appears on the certificate.

1.or LDAP server. For details on configuring an authentication server, see "Authentication Servers" on page 168

2.Verify that the server with the client data is part of the server group associated with the VPN authentication profile.

3.In the L2TP and XAUTH Parameters section of the Configuration>VPN Services>IPsec tab, enable L2TP.

4.In the L2TP and XAUTH Parameters section of the Configuration>VPN Services>IPsec tab, enable XAuth to enable prompting for the username and password.

5.The Phase 1 IKE exchange for XAuth clients can be either Main Mode or Aggressive Mode. Aggressive Mode condenses the IKE SA negotiations into three packets (versus six packets for Main Mode). In the Aggressive Mode section of the Configuration>VPN Services>IPsec tab, Enter the authentication group name for aggressive mode to associate this setting to multiple clients. Make sure that the group name matches the aggressive mode group name configured in the VPN client software.

6.Configure other VPN settings as described in "Configuring a VPN for L2TP/IPsec with IKEv2 in the WebUI" on page 279, while ensuring that the following settings are selected

• In the L2TP and XAUTH Parameters section of the Configuration>VPN Services>IPSEC tab, enable L2TP.

• n the L2TP and XAUTH Parameters section of the Configuration>VPN Services>IPSEC tab, enable XAuth to enable prompting for the username and password.

n Define an IKE policy to use RSA or ECDSA authentication.

The following example describes the steps to use the command-line interface to configure a VPN for Cisco Smart Card Clients using certificate authentication and IKEv1, where the client is authenticated against user entries added to the internal database:

(host)(config) #aaa authentication vpn default server-group internal

(host)(config) #no crypto-local isakmp xauth

(host)(config) #vpdn group l2tp enable

client dns 101.1.1.245

(host)(config) #ip local pool sc-clients 10.1.1.1 10.1.1.250

(host)(config) #crypto-local isakmp server-certificate MyServerCert

(host)(config) #crypto-local isakmp ca-certificate TrustedCA

(host)(config) #crypto isakmp policy 1 authentication rsa-sig

Enter the following command in enable mode to configure client entries in the internal database:

(host)(config) #local-userdb add username <name> password <password>

286 Virtual Private Networks

Dell PowerConnect W-Series ArubaOS 6.2 User Guide

6.2 specifications

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Dell 6.2 manual

Models: 6.2

certificates) or Common Name as it appears on the certificate.

6.2 specifications