NETGEAR FVS318G - ProSafe Gigabit VPN Firewall Data Sheet Router Reference Manual page 170

ProSafe Gigabit 8 Port VPN Firewall FVS318G Reference Manual
2. A one-time passcode (something they have) is generated for this user.
Figure C-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.
C-4
1.1 November, 2009
Two Factor Authentication