Chapter 11: AI2524 Sync PPP Configuration Steps
August 1997 Page 11-15
2524UM
Configure a Router as a Callback Server
Beginning in global configuration mode, configure a router as a call
back server:
1. Specify the interface and enter interfac e configu r ation mode.
interface serial
number
2. Enable DDR. Set parity on synchronous serial interfaces and asyn-
chronous interfaces.
dialer in-band [no-parity | odd-parity]
3. Enable PPP encapsulation.
encapsulation ppp
4. Enable CHAP or PAP authentication.
ppp authentication {chap | pap}
5. Map the next hop address to the host name and phone number,
using the name of the map class established for PPP callback on
this interface.
dialer map

protocol address

name

hostname

class

classname dial-string

6. (Optional) Configure a dialer hold queue to s to re packets to be
transferred when the callback connection is established.
dialer hold-queue
number
timeout
seconds
7. (Optional) Configure a timeout period between calls.
dialer enable-timeout
seconds
8. Configure the interface to accept PPP callback.
ppp callback accept
9. (Optional) Enable callback se curity, if desired.
dialer callback-secure
10. Return to global configuration mode.
exit
11. Configure a dialer map class for PPP callback.
map-class dialer

classname