Allied Telesis AT-AR256E - Manual (Page 12)

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To complete the connection, you must now click the Apply button. The Apply button will
temporarily save this connection. To make the change permanent, you need to click on Save
Settings. At the system commands page, click on Save All.
4.4.1.2 PPPoA Connection Setup
PPPoA is also known as RFC 2364. It is a method of encapsulating PPP packets over ATM cells
which are carried over the ADSL. PPP or Point-to-Point Protocol is a method of establishing a
network connection / session between network hosts. It usually provides a mechanism of
authenticating users. LLC and VC are two different methods of encapsulating the PPP packet.
Contact your ISP to make sure which encapsulation is being supported.
By selecting PPPoA, you are forcing the ADSL router to terminate the PPPoA connection. The
advantage is that the PPPoA termination is done within the ADSL router and not on your
computer; this frees up your computer’s resources and allows multiple users to utilise the PPPoA
connection.
To configure the gateway for PPPoA, click on Setup and then click on
New Connection . The
default PPPoE connection setup is displayed. At the Type field select PPPoA and the PPPoA
connection setup page is displayed; Figure 5 illustrates a typical PPPoA configuration. Give your
PPPoA connection a unique name; the name must not have spaces and cannot begin with
numbers. In this case, the unique name is called
PPPoA1 . Select the encapsulation type (LLC
or VC); if you are not sure, just use the default mode. Select the VPI and VCI settings; your
ADSL Provider or ISP will supply these; in this case, the ADSL Provider is using
0,100 . Also
select the Quality of Service (QoS); leave the default value if you are unsure or the ISP did not
provide this information.
The following is a description of the different options:
a. Username: The username for the PPPoA access; this is provided by your ADSL
Provider or ISP.
b. Password: The password for the PPPoA access; this is provided by your ADSL
Provider or ISP.
c. On-Demand: Enables on-demand mode. The connection will disconnect if no activity
is detected after the specified idle timeout value.
d. Idle Timeout: Specifies that PPPoA connection should disconnect if the link has no
activity detected for n seconds. This field is used in conjunction with the On-Demand
feature. To ensure that the link is always active, enter a 0 in this field.
e. Keep Alive: When on-demand option is not enabled, this value specifies the time to
wait without being connected to your provider before terminating the connection. To
ensure that the link is always active, enter a 0 in this field.
f. Set Route: Specify this connection as the default route.
g. MRU: Maximum Receive Unit the A DSL connection can receive. It is a negotiated
value that asks the Provider to send packets of no more than n bytes. The maximum
specified value is 1500, although some ADSL Providers/ISPs require a larger value.
The minimum MRU value is 128.