3Com 10014299 manual Command, Telephone-number, Next-hop-address user username, Dial-number

dialer route

724 CHAPTER 51: CONFIGURING DCC

Operation	Command
Configure the callback user and callback	local-user username callback-number
number	telephone-number
Configure the local end to be the PPP	ppp callback server
callback server
Disable the local end to be the PPP	undo ppp callback server
callback server
Configure the PPP callback reference	dialer callback-center [ user ] [
	dial-number ]
Disable the callback server function of the	undo dialer callback-center
router
Configure the destination address(es) and	dialer route protocol
dial number(s) for calling one (or more)	next-hop-address user username
remote ends	dial-number

By default, the system does not enable the callback function. Once it is enabled, the server will originate return calls according to the user name configured in the

command.

If the callback client adopts the dynamically assigned network address, the server will be unable to use the dialer route command to configure a callback dial number to associate with the network address. In this case, the callback client can only use the local-usercallback-numbercommand to configure a callback dial number to associate with the callback user name, and hence determine the callback reference.

Configuring PPP callback in the resource-shared DCC implementation

1Configure the PPP callback client in the resource-shared DCC implementation

As a callback client, a router can originate calls to the remote end (which can be a router or Windows NT server having the PPP callback server function), and receive the return calls from the remote end.

When resource-shared DCC are used to implement PPP callback, the PPP authentication configuration at client end is the same as that of circular DCC, except that the client in resource-shared DCC implementation must use the dialer number command to configure a dial number. See “Configure PPP callback client in the circular DCC implementation” in Dial-up.

Perform the following configuration in dialer interface view.

Table 759 Implement PPP Callback (Client Configuration) in Resource-Shared DCC

Operation	Command
Configure the local end to be the PPP	ppp callback client
callback client
Disable the local end to be the PPP	undo ppp callback client
callback client
Configure the dialer number for calling a	dialer number dial-number
remote end
Configure the dial number for a Windows	ppp callback ntstring dial-number
NT server to originate return calls to the
router
Delete the dial number that a Windows	undo ppp callback ntstring
NT server needs for placing return calls to
the router