3Com 3032 Configuration Manual page 744

740 C 51: C
HAPTER ONFIGURING
NT Server-to-Router
Callback for DC
DCC
Figure 237 Network for the DCC application providing router-to-PC callback
Modem
PC
Callback Client
1
Configure the PC:
a Configure the modem connected to the PC to be in "autoanswer mode".
b Select Start > Programs > Accessories > Communications > Dialup network.
c Click Set up new connection in the Dialup network window.
d Select the Server type page in the established new connection, and perform
the following operations:
Select the option [PPP]
Set the [Logon network] option as unchecked
Set the [Start software compression] as unchecked
e Select TCP/IP setting in the Server type page, and perform the following
operations:
Check the option [Server allocated with IP address]
Set the [Use IP head pointer compression] option as unchecked
Set the [Use default gateway of the remote network] option as unchecked
2 Configure RouterA:
[Router] dialer-rule 1 ip permit
[Router] local-user userpc password simple userpc
[Router] interface serial 0
[Router-Serial0] ip address 100.1.1.1 255.255.255.0
[Router-Serial0] remote address 100.1.1.2
[Router-Serial0] physical-mode async
[Router-Serial0] modem
[Router-Serial0] dialer enable-circular
[Router-Serial0] dialer-group 1
[Router-Serial0] dialer route ip 100.1.1.2 user userpc 8810052
[Router-Serial0] dialer callback-center user
[Router-Serial0] link-protocol ppp
[Router-Serial0] ppp authentication-mode pap
[Router-Serial0] ppp pap local-user Router password simple
[Router-Serial0] ppp callback server
A router and an NT server implement PPP callback via the serial interfaces across
C
PSTN.
As shown in Figure 238, RouterA and the NT server are interconnected via the
modems across PSTN. In this case, circular DCC is adopted. RouterA is specified as
the callback client and the NT server as the callback server. Callback is
implemented according to the configuration of the dialer route command. The
NT server uses the address 100.1.1.254, and RouterA accepts the address assigned
by the NT server.
8810048 8810052
PSTN
Serial0
Router A
Modem
Callback Server
Router