Dcc Application On Isdn - 3Com MSR 50 Series Configuration Manual

186 C 6: DCC C
HAPTER

DCC Application on ISDN

ONFIGURATION
[RouterC-Serial2/0] ppp pap local-user userc password simple userc
[RouterC-Serial2/0] quit
# Configure the user-interface to be used and enable modem dialup on it.
[RouterC] user-interface tty1
[RouterC-ui-tty1] modem both
Network requirements
Figure 24 presents a scenario for C-DCC implementation, where:
On Router A, interface BRI 1/0 is assigned an IP address 100.1.1.1/24.
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On Router B, interface BRI 1/0 is assigned an IP address 100.1.1.2/24.
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On Router C, interface BRI 1/0 is assigned an IP address 100.1.1.3/24.
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The BRI 1/0 interfaces on these three routers are located on the same network
segment.
Figure 25 presents a scenario for RS-DCC implementation, where:
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.
Make configuration 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 in both
C-DCC and RS-DCC approaches.
Network diagram
Figure 24 Network diagram for C-DCC application on ISDN
Router A
BRI1/0
100.1.1.1 /24
NT 1
8810048
ISDN
NT 1
BRI1/0
100.1.1.2/24
8810052
NT 1
8810063
BRI1 /0
100 .1.1 .3/24
Router B
Router C