| 11.2 |  | Authentication Configuration |
| 11.2.3 |  | Authentication of non-Telnet, FTP, or HTTP traffic |

| The PIX Security Appliance authenticates users via Telnet, FTP, or HTTP. But what if users need to access a Microsoft file server on port 139 or a Cisco IP/TV server? How will they be authenticated? Whenever users are required to authenticate to access services other than Telnet, FTP, or HTTP, they can choose from the following two methods:

1. Users can authenticate first by accessing a Telnet, FTP, or HTTP server before accessing other services.
2. Users can authenticate to the PIX Security Appliance virtual Telnet service before accessing other services.

The PIX virtual Telnet authentication option permits the user to authenticate directly with the PIX Security Appliance using the virtual Telnet IP address. Virtual Telnet authentication is an ideal solution when there are no Telnet, FTP, or HTTP servers with which to authenticate, or when an administrator wishes to simplify authentication for the user.