3Com 4500 PWR 26-Port Configuration Manual page 181

MAC authentication
macAddressWithRadius: A port in this mode performs MAC authentication for users.
For description of MAC authentication, refer to MAC Address Authentication Operation.
Security modes with the And keyword
macAddressAndUserLoginSecure: A port in this mode first performs MAC authentication for a
user and then, if the user passes MAC authentication, performs 802.1X authentication. A user can
access the network only after passing both authentications. The port supports up to one online
802.1X user.
macAddressAndUserLoginSecureExt: Similar to the macAddressAndUserLoginSecure
mode except that a port in this mode supports multiple users, as the Ext keyword implies.
Figure 15-2 shows how the port processes packets in a security mode with the And keyword.
Figure 15-2 Packet processing in a security mode with the And keyword
15-4