Interconnecting Lans Through Dedicated Line - 3Com MSR 50 Series Configuration Manual

Interconnecting LANs
through Dedicated Line
# Otherwise, configure static address mapping.
[RouterB-Serial2/0] fr map ip 202.38.163.251 70
3 Configure Router C:
# Assign an IP address.
<RouterC> system-view
[RouterC] interface serial 2/0
[RouterC-Serial2/0] ip address 202.38.163.253 255.255.255.0
# Configure interface encapsulation protocol as frame relay.
[RouterC-Serial2/0] link-protocol fr
[RouterC-Serial2/0] fr interface-type dte
# If the opposite router supports InARP, configure dynamic address mapping.
[RouterC-Serial2/0] fr inarp
# Otherwise, configure static address mapping.
[RouterC-Serial2/0] fr map ip 202.38.163.251 80
Network requirements
Two routers are directly connected through a serial interface. Router A works in
the frame relay DCE mode, and Router B works in the frame relay DTE mode.
Network diagram
Figure 44 Network diagram for interconnecting LANs through a dedicated line
S 2/0
202 .38 .163 .251/24
Router A
Configuration procedure
Approach I: On main interfaces
1 Configure Router A:
# Assign an IP address.
<RouterA> system-view
[RouterA] interface serial 2/0
[RouterA-Serial2/0] ip address 202.38.163.251 255.255.255.0
# Configure the link layer protocol on the interface to frame relay in DCE mode.
[RouterA-Serial2/0] link-protocol fr
[RouterA-Serial2/0] fr interface-type dce
# Configure a local virtual circuit.
[RouterA-Serial2/0] fr dlci 100
Frame Relay Configuration Example
202 .38 .163 .252 /24
DLCI=100
S2/0
Router B
249