Specifications

5-4
Cisco AS5x00 Case Study for Basic IP Modem Services
11/24/1999
Section 5 Configuring PPP and Authentication
Enabling PPP Autoselect
Task 4. Enabling PPP Autoselect
Enable remote PPP users to dial in, bypass the EXEC facility, and automatically start PPP on the line.
!
line 1/2/00 1/10/143
autoselect during-login
autoselect ppp
!
These two autoselect commands:

Provide the transparent launching of shell and PPP services on the same lines.

Circumvent the need to alert the NAS by pressing the return key. Older versions of Cisco IOS did
not have this feature and required the peer to hit return before the username was displayed.
Note
The
autoselect during-login
command displays the username:password prompt after
modems connect.
async mode interactive
Configures interactive mode on the asynchronous
interfaces. Interactive means that users can dial in
and get to a shell or PPP session on that line.
ppp authentication chap pap
Enables CHAP and PAP authentication on the
interface during LCP negotiation. The NAS first
requests to authenticate with CHAP. If CHAP is
rejected by the remote client (modem), then PAP
authentication is requested.
peer default ip address pool
addr-pool
Assigns dial-in client IP addresses from the pool
named addr-pool.
no cdp enable
Disables the Cisco discovery protocol.
no ip directed-broadcast
Prevents IP directed broadcasts.
group-range 1/2/00 1/10/143
Specifies the range of asynchronous interfaces to
include in the group, which is usually equal to the
number of modems you have in the NAS.
(The session may pause for several seconds when
you issue this command.)
Table 5-1 Interface Group Async Command Descriptions (continued)
Command Purpose