Configuring Pppoe Server - 3Com MSR 50 Series Configuration Manual

394 C 20: PPP
HAPTER O
Configuring PPPoE
Server
E C
ONFIGURATION
Dynamic IP address allocation.
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Multiple authentication methods such as local authentication and
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RADIUS/TACACS+. Along with ASPF and packet filter, it provides strong
defense for your network.
PPPoE server is applicable to campus networks where Ethernet is used for
connecting to the Internet. This however, requires installation of PPPoE client
dialup software on hosts.
PPPoE client
PPPoE is widely used in ADSL broadband access applications. Generally, a host
must be installed with PPPoE client dialing software in order to access the Internet
via ADSL. Currently, the PPPoE client, or PPPoE client dialup, is available on the
device to enable users to access the Internet without installing client dial-up
software on the hosts. Moreover, all the hosts on the same LAN can share the
same ADSL account.
Figure 99 Network diagram for PPPoE client
PPPoE Session
Host A
As shown in the above figure, PCs on the Ethernet are connected to the device
where PPPoE client runs. The data destined to the Internet first reaches the router
and is encapsulated in PPPoE there. After leaving the router, it passes through the
ADSL modem attached to the router and then the ADSL access server before
reaching the Internet. This can be done without PPPoE client dial-up software.
PPPoE server can be configured on physical Ethernet interfaces or virtual Ethernet
interfaces generated by ADSL interface. For more information on the
configuration of PPPoE server on virtual Ethernet interface, refer to
Interface Configuration" on page
Follow these steps to configure PPPoE server:
PPPoE Server
ADSL Modem
PPPoE Client
Host B
71.
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