Troubleshooting - 3Com 3032 Configuration Manual

756 C 52: C
HAPTER ONFIGURING
Power-on Initialization
through the
Initialization Script
Use the Script to Dial
Directly
Authentication for
Modem Dial-in User

Troubleshooting

M
ODEM
Enable the router to initialize the modem to which the asynchronous interface is
connected when powering on the router or rebooting it.
[Router] script-string init "" AT OK AT&B1&C1&D2&S0=1 OK AT&W OK
[Router] interface async 0
[Router-Async0] modem
[Router-Async0] start-chat init
Configure a modem script and direct dial.
[Router] script-string dial "" AT OK ATDT8810058 CONNECT
[Router] interface async 0
[Router-Async0] modem
[Router-Async0] start-chat dial
Before logging in network through dialing, multiple users who connect with
modem are authenticated on 3Com router based on username and password.
Only the authenticated users can logging in network, and those who have failed
the authentication are not allowed to log in.
Figure 242 Network of authentication for modem dial-in user
Router
PC
1 Configure a modem script.
[Router] script-string welcome "" "Welcome use 3Com router!"
2 Configure a modem user, and enable AAA authentication.
[Router] local-user testuser password simple testuser service
exec-operator
[Router] aaa-enable
[Router] aaa authentication-scheme login default local
[Router] aaa accounting-scheme optional
3 Execute specified script in serial0 interface view.
[Router] interface serial 0
[Router-Serial0] modem-login
[Router-Serial0] script trigger connect welcome
[Router-Serial0] undo modem auto-answer
The modem is in abnormal status (such as the dial tone or busy tone
remains for a long time).
Do the following:
Execute the commands
interface connected to the modem to check whether the modem has been
restored to normal status.
PSTN
Modem
and
shutdown undo shutdown
on the router physical