User`s guide

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PPP OVER ETHERNET
PPP over Ethernet (PPPoE) is a means of establishing a PPP connection over the top of an
Ethernet connection. The implementation provided is compliant with RFC 2516, “A Method
for Transmitting PPP Over Ethernet”. A typical application would be to allow non-PPPoE
enabled devices to access Internet services where the connection to the Internet is provided
by an ADSL bridge device.
Using the Web Page(s)
There is no dedicated web page for configuring the unit to use PPPoE; rather there are a
number of parameters that appear on other web pages that must be used in conjunction
with each other to establish a PPPoE connection over the appropriate Ethernet interface.
In particular, the following configuration pages and parameters are important.
On the appropriate Configuration - Network > Interfaces > Advanced > PPP n - n
pages, you should configure the following parameters on the following pages:
Configuration - Network > Interfaces > Advanced > PPP n - n > PPP n
As a minimum requirement the Username and Password parameters should be initialised.
The parameter This PPP interface will use x,y defines the physical Ethernet interface
over which the PPPoE session will operate. In most cases this is PPPoE 0 (for Ethernet 0).
The fact that you have selected “PPPoE 0” as the physical interface for operation with PPP
automatically enables PPPoE mode. If another Ethernet instance is used, Eth 1 for example,
this will need to be specified as PPPoE 1 to ensure the correct MAC address is used, this is in
the format 0 or blank for port 0, 1 for port 1, 2 for port 2 etc.
If necessary, continue to the page Configuration - Network > Interfaces > Advanced
> PPP n - n > PPP n > Advanced and set the Enable "Always On" mode of this
interface parameter to “On” to configure the unit so that it will attempt to renegotiate the
PPP link should it go down for any reason.
Configuration - Network > Interfaces > Advanced > PPP n - n > PPP n > PPP
Negotiation
The advanced PPP options on this page should be initialised as required by your ISP.
In addition:
Desired Local MRU and Desired Remote MRU should be set to “1492”.
Request Local ACFC and Request Remote ACFC should be set to “No”.
Request Local PFC and Request Remote PFC should be set to “No”.
Desired Local ACCM and Desired Remote ACCM should be set to “0xffffffff”.
Using Text Commands
There are no specific PPPoE commands available to the user via the text command
interface. The appropriate
ppp CLI commands should be used to set the required options.