Troubleshooting - 3Com MSR 50 Series Configuration Manual

Troubleshooting

2.2.2.2/16, your device can automatically dial to the remote end through DCC for
data transmission, as shown in the network diagram.
For more information about DCC dialup, refer to
153.
Network diagram
Figure 88 Network of the configuration for the router to manage the modem
S2/0
1.1.1.1/16
Router
Modem
Configuration procedure
1 Configure Router:
<Router> system-view
[Router] dialer-rule 1 ip permit
[Router] interface serial 2/0
[Router-Serial2/0] physical-mode async
[Router-Serial2/0] async mode protocol
[Router-Serial2/0] link-protocol ppp
[Router-Serial2/0] ip address 1.1.1.1 255.255.0.0
[Router-Serial2/0] dialer enable-circular
[Router-Serial2/0] dialer-group 1
[Router-Serial2/0] dialer timer enable 5
[Router-Serial2/0] dialer number 666666
[Router-Serial2/0] quit
[Router] user-interface tty 1
[Router-ui-tty1] modem both
For information about DCC commands, refer to
153.
2 Configuring the Cisco router
For details, refer to Cisco documentation.
Symptom:
Modem is in abnormal status (such as the dial tone or busy tone keeps humming
for a long time).
Solution:
Execute the commands shutdown and undo shutdown on the device
■
physical interface connected to the modem to check whether the modem has
been restored to normal status.
If the modem is still in abnormal status, you can re-power the modem.
■
Troubleshooting
"DCC Configuration" on page
PSTN
Modem
"DCC Configuration" on page
357
S2/0
2.2.2.2/16
Cisco Router