Wan Sub-Interface Configuration Example - 3Com MSR 50 Series Configuration Manual

532 C 28: L
HAPTER OGICAL
WAN Sub-interface
Configuration Example
I C
NTERFACE ONFIGURATION
Network requirements
WAN interface Serial 1/0 of Router A is connected to Router B and Router C
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through the public frame relay network.
Allow LAN 1 to access LAN 2 and LAN 3 at the same time through Serial 1/0 by
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configuring sub-interfaces for Serial 1/0 of Router A.
Network diagram
Figure 149 Network diagram for WAN sub-interface configuration
LAN 1
2.1.0.0/16
Router A
Configuration procedure
1 Configure Router A
# Enter Serial 1/0 interface view.
<Sysname> system-view
[Sysname] interface serial 1/0
# Set the link-layer protocol to frame relay.
[Sysname-Serial1/0] link-protocol fr
# Specify the frame relay terminal type as DTE.
[Sysname-Serial1/0] fr interface-type dte
[Sysname-Serial1/0] quit
# Create a point-to-point sub-interface Serial 1/0.1.
[Sysname] interface serial 1/0.1 p2p
# Set the IP address of Serial 1/0.1 to 202.38.160.1/24.
[Sysname-Serial1/0.1] ip address 202.38.160.1 255.255.255.0
# Assign a virtual circuit with DLCI being 50 to Serial 1/0.1.
S1/0.1
1.1.1.1/24
DLCI =50
FR
S1/0.2
1.1.2.1/24
DLCI =60
LAN 2
2.2.0.0/16
S2/0
1.1.1.2/24
DLCI =50
Router B
Router C
S2/0
1.1.2.2/24
DLCI =60
LAN 3
2.3.0.0/16