Router-To-Pc Callback For Dcc - 3Com 3C13636 Configuration Manual

3Com Router 3000 Ethernet Family
Configuration Guide

1.4.5 Router-to-PC Callback for DCC

I. Network requirements
A router and a PC realize PPP callback via the serial interfaces over PSTN. As shown
in the following figure, the PC and RouterA are interconnected via the modems across
PSTN. C-DCC is adopted in this case. The PC is specified to be the callback client
whereas RouterA to be the callback server. They implement callback according to the
configuration of the dialer route command. RouterA uses the address 100.1.1.1 and
the PC accepts the address assigned by RouterA.
II. Network diagram
pc pc
C al l back C l i ent C al l back C l i ent
Figure 1-14 Network for the DCC application providing router-to-PC callback
III. Configuration procedure
1) Configure PC
First, configure the modem connected to the PC to be in "auto answer mode", and then
open [Start/Programs/Accessories/Communications/Dialup network]. Click [Set up new
connection] in the [Dialup network] window, 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
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
[3Com] dialer-rule 1 ip permit
[3Com] local-user userpc
[3Com-luser-userc] password simple userpc
[3Com-luser-userc] service-type ppp
[3Com-luser-userc] quit
[3Com] interface serial 0/0/0
[3Com-Serial0/0/0] ip address 100.1.1.1 255.255.255.0
[3Com-Serial0/0/0] remote address 100.1.1.2
8810048 8810048
PSTN PSTN
Modem Modem
3Com Corporation
1-51
Chapter 1 DCC Configuration
Serial0/0/0 Serial0/0/0
8810052 8810052
Modem Modem
C al l back Ser ver C al l back Ser ver
Router A Router A