At work we have got Cisco VPN 3000 concentrator is currently running , I have been assigned to write document about enhancement the VPN security by using TOKEN, I have not been given any further information.
I have done an intensive search , but I could not get some thing that I can start with
Steve mentioned RSA's SecurID as a popular option. The RSA SecurID Ready Implementation Guide for the Cisco VPN 3000 Concentrator Series is available from the RSA website at: .
Adding strong user authentication (2-factor authentication, as in TOKEN) to a VPN is considered an enhancement because the VPN itself can only validate the machines it links to -- whereas 2FA authenticates an active human individual, and directly associates him or her with the message traffic or transaction.