Configuring PPP callback with RS-DCC
You can configure the router as a PPP callback client or server with RS-DCC.
To leave enough time for a server to call back, set the interval for DCC to make the next call attempt on the client at least 10 seconds longer than that of the server. Hewlett Packard Enterprise recommends that you set the interval on the server to 5 seconds (the default) and that on the client to 15 seconds.
Configuring a PPP callback client with RS-DCC
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 a 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.
To configure a PPP callback client with RS-DCC:
Step | Command | Remarks |
|---|---|---|
1. Enter system view. | system-view | N/A |
2. Enter dialer interface view. | interface dialer number | N/A |
3. Enable PPP encapsulation. | link-protocol ppp | N/A |
4. Configure authentication parameters. | See "Configuring PPP and MP." | N/A |
5. Enable PPP callback client. | ppp callback client | By default, PPP callback is disabled. |
6. Configure the dial string for a Windows NT Server to place return calls. | ppp callback ntstring dial-number | Optional. When a router operating as the PPP callback client calls a Windows NT Server operating as the PPP callback server, if the Windows NT Server needs the router to send the callback number, configure this command. |
7. Set the interval for DCC to make the next call attempt. | dialer timer enable seconds | Optional. Hewlett Packard Enterprise recommends that you use 15 seconds. |
Configuring a PPP callback server with RS-DCC
Configuring a PPP callback server in RS-DCC is the same as that in C-DCC, except the callback reference can only be dial-number in RS-DCC and dial strings for callback must be configured with the authorization-attribute callback-number command.
To configure a PPP callback server with RS-DCC:
Step | Command | Remarks |
|---|---|---|
1. Enter system view. | system-view | N/A |
2. Enter dialer interface view. | interface dialer number | N/A |
3. Enable PPP callback server. | ppp callback server | By default, PPP callback is disabled. |
4. Configure the PPP callback reference. | dialer callback-center dial-number | N/A |
5. Exit to system view. | quit | N/A |
6. Create a local user and enter local user view. | local-user user-name | N/A |
7. Configure a dial string for callback. | service-type ppp authorization-attribute callback-number callback-number | When placing a return call, DCC identifies which dial string to be used according to the remote username obtained through PPP negotiation. |