Quick Reference Guide

ProSafe Dual WAN Gigabit Firewall with SSL & IPsec VPN FVS336G Reference Manual
E-4 Two Factor Authentication
v1.3, March 2009
2. A one-time passcode (something they have) is generated for this user.
Figure E-2
Note: The one-time passcode is time synchronized to the authentication server so that
the OTP can only be used once and must be used before the expiration time. If
a user does not use this passcode before it is expired, the user will need to go
through the request process again to generate a new OTP.