Networking Requirements; Configuration Procedure - 3Com 3032 Configuration Manual

Use ADSL as Standby
Line
[Router-Dialer1]ip ppp-negotiate
[Router-Dialer1]ppp pap local-user 3com password cipher 12345
2 Configure a PPPoE session
[Router]interface ethernet 1
[Router-Ethernet1]pppoe-client dial-bundle-number 1
3 Configure the LAN interface and the default route
[Router]interface ethernet 0
[Router-Ethernet0]ip address 192.168.1.1 255.255.255.0
[Router]ip route-static 0.0.0.0 0.0.0.0 dialer 1
If the IP addresses assigned to the PCs on the LAN are private addresses, Network
Address Translation (NAT) should also be configured on the router. For the NAT
configuration, refer to the related chapters contained in Operation Manual -
Network Protocol.
I. Networking Requirements
RouterA uses both DDN leased line and ADSL to connect with the network center
and ADSL is used as a standby for the DDN leased line. Thus, if the DDN leased line
fails, RouterA can still originate PPPoE call for connection to the network center
across ADSL. If ADSL has been idle for two minutes, the PPPoE session will be
terminated. If new packets are generated for transmission after that, PPPoE
session will be re-established.
II. Networking Diagram
Figure 54 Typical networking for PPPoE
RouterA
III. Configuration Procedure
1 Configure a dialer interface
[Router]dialer-rule 1 ip permit
[Router]interface dialer 1
[Router-Dialer1]dialer bundle 1
[Router-Dialer1]dialer-group 1
[Router-Dialer1]ip address ppp-negotiate
2 Configure a PPPoE session
[Router]interface ethernet 1
[Router-Ethernet1]pppoe-client dial-bundle-number 1 idle-timeout 120
3 Configure the DDN interface Serial 0
[Router]interface serial 0
[Router-Serial0]ip address 10.1.1.1 255.255.255.0
[Router-Serial0]standby interface dialer 1
Typical PPPoE Configuration Example
ADSL
DDN
Network center
183