1-68
Cisco ASA Series CLI Configuration Guide
Chapter 1 Configuring Connection Profiles, Group Policies, and Users
Group Policies
To prevent inheriting an idle timeout value, enter the user-authentication-idle-timeout command with
the none keyword. This command sets the idle timeout with a null value, which disallows an idle timeout
and prevents inheriting an user authentication idle timeout value from a default or specified group policy.
The following example shows how to set an idle timeout value of 45 minutes for the group policy named
FirstGroup:
hostname(config)# group-policy FirstGroup attributes
hostname(config-group-policy)# user-authentication-idle-timeout 45
Configuring IP Phone Bypass
You can allow Cisco IP phones to bypass individual user authentication behind a hardware client. To
enable IP Phone Bypass, enter the ip-phone-bypass command with the enable keyword in group-policy
configuration mode. IP Phone Bypass lets IP phones behind hardware clients connect without
undergoing user authentication processes. IP Phone Bypass is disabled by default. If enabled, secure unit
authentication remains in effect.
To disable IP Phone Bypass, enter the disable keyword. To remove the IP phone Bypass attribute from
the running configuration, enter the no form of this command. This option allows inheritance of a value
for IP Phone Bypass from another group policy:
hostname(config-group-policy)# ip-phone-bypass {enable | disable}
hostname(config-group-policy)# no ip-phone-bypass
Note You must configure mac-exempt to exempt the clients from authentication. Refer to the
“Configuring Device Pass-Through” section on page 74-8 for more information.
Configuring LEAP Bypass
When LEAP Bypass is enabled, LEAP packets from wireless devices behind a VPN 3002 hardware
client travel across a VPN tunnel prior to user authentication. This action lets workstations using Cisco
wireless access point devices establish LEAP authentication and then authenticate again per user
authentication. LEAP Bypass is disabled by default.
To allow LEAP packets from Cisco wireless access points to bypass individual users authentication,
enter the leap-bypass command with the enable keyword in group-policy configuration mode. To
disable LEAP Bypass, enter the disable keyword. To remove the LEAP Bypass attribute from the
running configuration, enter the no form of this command. This option allows inheritance of a value for
LEAP Bypass from another group policy:
hostname(config-group-policy)# leap-bypass {enable | disable}
hostname(config-group-policy)# no leap-bypass
Note IEEE 802.1X is a standard for authentication on wired and wireless networks. It provides wireless LANs
with strong mutual authentication between clients and authentication servers, which can provide
dynamic per-user, per session wireless encryption privacy (WEP) keys, removing administrative burdens
and security issues that are present with static WEP keys.
Cisco Systems has developed an 802.1X wireless authentication type called Cisco LEAP. LEAP
(Lightweight Extensible Authentication Protocol) implements mutual authentication between a wireless
client on one side of a connection and a RADIUS server on the other side. The credentials used for
authentication, including a password, are always encrypted before they are transmitted over the wireless
medium.
To Next Page
Loading...
Need help?
General
