PMP 450 Configuration and User Guide
Task 2: Configuring IP and Ethernet
interfaces
pmp-0050 (May 2012)
2-33
When PPPoE is enabled, once the RF session comes up between the SM and the AP, the SM will immediately
attempt to connect to the PPPoE Server. You can monitor the status of this by viewing the PPPoE Session
Log in the Logs section (Administrator only). Every time the RF session comes up, the SM will check the
status of the link and if it is down, the SM will attempt to redial the link if necessary depending on the Timer
Type. Also, on the Configuration page, the user may Connect or Disconnect the session manually. This can be
used to override the session to force a manual disconnect and/or reconnect if there is a problem with the session.
In order to enable PPPoE, NAT MUST be enabled on the SM, and Translation Bridging MUST be disabled on
the AP. These items will be strictly enforced for you when you are trying to enable PPPoE. A message will
indicate any prerequisites not being met. Also, the NAT Public IP DHCP client cannot be enabled This is
because the NAT Public IP will be received through the IPCP process of the PPPoE discovery stages.
The pre-requisites required are:
NAT MUST be enabled on the SM
o
NAT DHCP Client will be disabled automatically. The NAT public IP will be received from the
PPPoE Server.
o
NAT Public Network Interface Configuration will not be used and should be left to defaults. Also
NAT Public IP DHCP will be disabled if it is enabled.
Translation Bridging MUST be DISABLED on the AP
o
This will only be determined if the SM is in session since the SM won‘t know the AP configuration
otherwise. If the SM is not in session, PPPoE can be enabled but if the SM goes into session to a
Translation Bridge-enabled AP, then PPPoE will not be enabled.
The following PPPoE configuration parameters are available:
Table 15
SM PPPoE attributes
Attribute
Meaning
Access Concentrator
An optional entry to set a specific access concentrator to
connect to for the PPPoE session. If this is blank, the SM will
accept the first access concentrator which matches the service
name (if specified). This is limited to 32 characters.
Service Name
An optional entry to set a specific service name to connect to
for the PPPoE session. If this is left blank the SM will accept
the first service option that comes back from the access
concentrator specified above, if any. This is limited to 32
characters.
Authentication Type
None
means that no PPPoE authentication will be
implemented
CHAP/PAP
means that CHAP authentication will be
attempted first, then PAP authentication. The same
password is used for both types.
User Name
This is the CHAP/PAP user name that will be used if
CHAP/PAP authentication is selected. If
None
is selected for
authentication then this field is unused. This is limited to 32
characters.
Summary of Contents for PMP 450
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