3Com MSR 50 Series Configuration Manual page 173

Configuring PPP callback in the RS-DCC implementation
Configuring PPP callback in RS-DCC involves configuring PPP callback client and
configuring PPP callback server.
1 Configure PPP callback client in the RS-DCC implementation
As a callback client, your router can place calls to the remote end (which can be a
router or Windows NT server with the PPP callback server function), and receive
return calls from the remote end.
Configuring PPP callback client in RS-DCC is the same as that in C-DCC except
that the dial string is configured with the dialer number command in RS-DCC.
Follow these steps to configure PPP callback client in the RS-DCC implementation:
To do...
Enter system view
Enter dialer interface view
Enable PPP encapsulation
Configure authentication
parameters
Enable PPP callback client
Configure the dial string for a
Windows NT Server to place
return calls
Set the interval between two
calls
2 Configure PPP callback server in the RS-DCC implementation
Configuring PPP callback server in RS-DCC is the same as that in C-DCC except
that the callback reference can only be dial-number in RS-DCC and dial strings for
callback must be configured with the service-type ppp command.
Follow these steps to configure PPP callback server in the RS implementation:
To do...
Enter system view
Enter dialer interface view
Enable PPP callback server
Configure the PPP callback
reference
Exit to system view
Create and enter local user
view
Use the command...
system-view
interface dialer number
link-protocol ppp
See "PPP and MP Configuration" on
page 363 and "PPPoE Configuration"
on page 393 for related information.
ppp callback client
ppp callback ntstring dial-number
dialer timer enable seconds
Use the command...
system-view
interface dialer number
ppp callback server
dialer callback-center
dial-number
quit
local-user user-name
DCC Configuration 173
Remarks
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Required
Required
Required
Disabled by default
Required
Optional
15 seconds is
recommended.
Remarks
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Required
Disabled by default.
Required
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Required