H3C SOHO IE4300, Command Reference Manual

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13
Default
The access device performs EAP termination and uses CHAP to communicate with the RADIUS
server.
Views
System view
Predefined user roles
network-admin
Parameters
chap
: Configures the access device to perform Extensible Authentication Protocol (EAP)
termination and use the Challenge Handshake Authentication Protocol (CHAP) to communicate with
the RADIUS server.
eap
: Configures the access device to relay EAP packets, and supports any of the EAP
authentication methods to communicate with the RADIUS server.
pap
: Configures the access device to perform EAP termination and use the Password
Authentication Protocol (PAP) to communicate with the RADIUS server.
Usage guidelines
The access device terminates or relays EAP packets.
•
In EAP termination mode —The access device re-encapsulates and sends the authentication
data from the client in standard RADIUS packets to the RADIUS server. The device performs
either CHAP or PAP authentication with the RADIUS server. In this mode, the RADIUS server
supports only MD5-Challenge EAP authentication and the username and password EAP
authentication initiated by an iNode client.

PAP transports usernames and passwords in plain text. The authentication method applies
to scenarios that do not require high security. To use PAP, the client can be an iNode 802.1X
client.

CHAP transports usernames in plain text and passwords in encrypted form over the
network. CHAP is more secure than PAP.
•
In EAP relay mode —The access device relays EAP messages between the client and the
RADIUS server. The EAP relay mode supports multiple EAP authentication methods, such as
MD5-Challenge, EAP-TLS, and PEAP. To use this mode, make sure the RADIUS server meets
the following requirements:

Supports the EAP-Message and Message-Authenticator attributes.

Uses the same EAP authentication method as the client.
If this mode is used, the
user-name-format
command configured in RADIUS scheme view
does not take effect. For more information about the
user-name-format
command, see
"RADIUS commands."
If RADIUS authentication is used, you must configure the access device to use the same
authentication method (PAP, CHAP, or EAP) as the RADIUS server.
Examples
# Enable the access device to terminate EAP packets and perform PAP authentication with the
RADIUS server.
<Sysname> system-view
[Sysname] dot1x authentication-method pap
Related commands
display dot1x