3Com 3032 Configuration Manual page 285

Back-to-back Connection
through Frame Relay
over ISDN
II. Networking Diagram
Figure 98 Networking diagram of Frame Relay over IP
DLCI 100
Frame Relay
Network
III. Configuration Procedure
1 Configure RouterA
a Configure the Frame Relay interface Serial0
[Router]interface serial 0
[Router-Serial0]link-protocol fr
[Router-Serial0]fr interface-type dce
[Router-Serial0]fr dlci 100
b Configure IP interface Ethernet0
[Router]interface ethernet 0
[Router-Ethernet0]ip address 10.110.50.1 255.255.255.0
c Configure tunnel interface
[Router]interface tunnel 1
[Router-Tunnel1]source 10.110.50.1
[Router-Tunnel1]destination 10.110.50.2
d Configure Frame Relay over IP
[Router]interface serial 0
[Router-Serial0]fr dlci-switch 100 interface tunnel 1 dlci 200
2 Configure RouterB
a Configure the Frame Relay interface Serial0.
[Router]interface serial 0
[Router-Serial0]link-protocol fr
[Router-Serial0]fr interface-type dce
[Router-Serial0]fr dlci 300
b Configure IP interface Ethernet0
[Router]interface ethernet 0
[Router-Ethernet0]ip address 10.110.50.2 255.255.255.0
c Configure tunnel interface
[Router]interface tunnel 1
[Router-Tunnel1]source 10.110.50.2
[Router-Tunnel1]destination 10.110.50.1
d Configure Frame Relay over IP
[Router]interface serial 0
[Router-Serial0]fr dlci-switch 300 interface tunnel 1 dlci 200
I. Networking Requirements
RouterA (DTE) and RouterB (DCE) are connected via ISDN. RouterA adopts legacy
BDR to make calls while RouterB adopts dialer profiles. To establish a PVC, the call
must be originated from RouterA.
Typical Frame Relay Configuration Example
DLCI 200
IP Network
Tunnel
E0
Router A
DLCI 200 DLCI 300
Frame Relay
E0
Network
Router B
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