ECS4510 Series Web Management Guide-R03

Table Of Contents
Chapter 16
| IP Services
Configuring the PPPoE Intermediate Agent
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The switch intercepts PPPoE discovery frames from the client and inserts a
unique line identifier using the PPPoE Vendor-Specific tag (0x0105) to
PPPoE Active Discovery Initiation (PADI) and Request (PADR) packets. The
switch then forwards these packets to the PPPoE server. The tag contains
the Line-ID of the customer line over which the discovery packet was
received, entering the switch (or access node) where the intermediate
agent resides.
Outgoing PAD Offer (PADO) and Session-confirmation (PADS) packets sent
from the PPPoE Server include the Circuit-ID tag inserted by the switch, and
should be stripped out of PADO and PADS packets which are to be passed
directly to end-node clients.
Operational Circuit ID – The configured circuit identifier.
Remote ID – String identifying the remote identifier (or interface) on this
switch to which the user is connected. (Range: 1-63 ASCII characters;
Default: Port MAC address)
Operational Remote ID – The configured circuit identifier.
Web Interface
To configure interface settings for PPPoE IA:
1. Click IP Service, PPPoE Intermediate Agent.
2. Select Configure Interface from the Step list.
3. Select Port or Trunk interface type.
4. Enable PPPoE IA on an interface, set trust status, enable vendor tag stripping if
required, and set the circuit ID and remote ID.
5. Click Apply.
Figure 418: Configuring Interface Settings for PPPoE Intermediate Agent
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