H3C Technologies H3C WA2600 Series WLAN Access Points - Manual (Page 18)

4-8
For more information about local user and domain configuration, see AAA in the Security Configuration
Guide.
2) Configuring the authenticatee
Follow these steps to configure the authenticatee:
To do… Use the command… Remarks
Enter system view system-view —
Enter interface view
interface interface-type
interface-number
—
Assign a username to the
CHAP authenticatee
ppp chap user username
Required
The username you assign to the
authenticatee here must be the same
as the local username you assign to
the authenticatee on the authenticator.
Set the default CHAP
authentication password ppp chap password { cipher |
simple } password
Required
Configuring PPP Negotiation
Introduction to PPP negotiation parameters
PPP negotiation parameters that can be configured include: negotiation timeout time, IP address
negotiation mode, and DNS server address negotiation mode.
Negotiation timeout time determines the interval to send request packets. During PPP negotiation, if no
response is received from the peer during a specific period after the local AP sends a packet, the AP
sends another one. The period is known as negotiation timeout time, which ranges from 1 to 10
seconds.
IP address negotiation can be implemented in the following two modes.
z The AP operates as the client. You can configure the local interface to operate in this mode if it
uses PPP at the data link layer but it does not have an IP address, whereas the peer is configured
with an IP address, after which the interface can receive an IP address allocated by its peer. This
configuration applies to the situations where you access the Internet through ISP.
z The AP operates as the server. In this case, you must configure a local IP address pool in domain
view or system view to specify the range of the IP addresses to be allocated, and then bind the
address pool to the interface.
PPP address negotiation can also determine the DNS server address. You can configure the AP to
allocate the DNS server address to the peer or receive the DNS server address from the peer. Normally,
for a PPP link between a PC and the AP, the DNS server address is usually allocated by the AP, through
which the PC can access the Internet directly by using domain names. For a PPP link established
between the AP and the access server of a carrier, the DNS server address is usually allocated by the
access server, through which the AP can resolve domain names through the DNS server address
allocated by the access server.