Rs-Dcc Application - 3Com MSR 50 Series Configuration Manual

182 C 6: DCC C
HAPTER ONFIGURATION

RS-DCC Application

# Set interface Serial 2/0 to work in asynchronous protocol mode.
[RouterC] interface serial 2/0
[RouterC-Serial2/0] physical-mode async
[RouterC-Serial2/0] async mode protocol
# Assign an IP address to interface Serial 2/0, associate dialer access group 1 with
the interface, enable C-DCC, and configure two dial strings for calling Router A.
[RouterC-Serial2/0] ip address 100.1.1.3 255.255.255.0
[RouterC-Serial2/0] dialer enable-circular
[RouterC-Serial2/0] dialer-group 1
[RouterC-Serial2/0] dialer route ip 100.1.1.1 8810048
[RouterC-Serial2/0] dialer route ip 100.1.1.1 8810049
[RouterC-Serial2/0] quit
# Enable modem dialup on the user interface to be used.
[RouterC] user-interface tty1
[RouterC-ui-tty1] modem both
Network requirements
As shown in the following diagram,
On Router A, interface Dialer0 is assigned an IP address 100.1.1.1/24 and
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Dialer1 an IP address 122.1.1.1/24.
On Router B, interface Dialer0 is assigned an IP address 100.1.1.2/24.
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On Router C, interface Dialer0 is assigned an IP address 122.1.1.2/24.
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The Dialer0 interfaces on Router A and Router B are located on the same network
segment, so are the Dialer1 interface on Router A and the Dialer0 interface on
Router C.
Configure RS-DCC to allow Router A to call Router B and Router C from multiple
interfaces while disabling Router B and Router C from calling each other.
Network diagram
Figure 23 Network diagram for an RS-DCC application
Router A NT 1
BRI1/0
100.1.1.1 /24
8810052
8810048
ISDN
8810063
NT 1 Router B
BRI1/0
100.1.1.2/24
NT 1
Router C
BRI1 /0
100 .1.1 .3/24