PPPoE Intermediate Agent (PPPoE IA) relay parameters control the way authentication messages are passed between a client and broadband remote access servers.
Use the IP Service > PPPoE Intermediate Agent (Configure Global) page to enable the PPPoE IA on the switch, set the access node identifier, and set the generic error message.
When PPPoE IA is enabled, the switch inserts a tag identifying itself as a PPPoE IA residing between the attached client requesting network access and the ports connected to broadband remote access servers (BRAS). The switch extracts access-loop information from the client's PPPoE Active Discovery Request, and forwards this information to all trusted ports (designated on the Configure Interface page). The BRAS detects the presence of the subscriber's circuit-ID tag inserted by the switch during the PPPoE discovery phase, and sends this tag as a NAS-port-ID attribute in PPP authentication and AAA accounting requests to a RADIUS server.
Enables the PPPoE Intermediate Agent globally on the switch. (Default: Disabled)
Note that PPPoE IA must be enabled globally before it can be enabled on an interface.
String identifying this switch as an PPPoE IA to the PPPoE server. (Range: 1-48 ASCII characters: Default: IP address of first IPv4 interface on the switch.)
The switch uses the access-node-identifier to generate the circuit-id for PPPoE discovery stage packets sent to the BRAS, but does not modify the source or destination MAC address of these PPPoE discovery packets. These messages are forwarded to all trusted ports designated on the Configure Interface page.
The configured access node identifier.
An error message notifying the sender that the PPPoE Discovery packet was too large. (Range: 0-127; Default: PPPoE Discover packet too large to process. Try reducing the number of tags added.)
The configured generic error message.
Use the IP Service > PPPoE Intermediate Agent (Configure Interface) page to enable PPPoE IA on an interface, set trust status, enable vendor tag stripping, and set the circuit ID and remote ID.
Port or trunk selection.
Enables the PPPoE IA on an interface. (Default: Disabled)
Note that PPPoE IA must also be enabled globally on the switch for this command to take effect.
Sets an interface to trusted mode to indicate that it is connected to a PPPoE server. (Default: Disabled)
Set any interfaces connecting the switch to a PPPoE Server as trusted. Interfaces that connect the switch to users (PPPoE clients) should be set as untrusted.
At least one trusted interface must be configured on the switch for the PPPoE IA to function.
Enables the stripping of vendor tags from PPPoE Discovery packets sent from a PPPoE server. (Default: Disabled)
This parameter only applies to trusted interfaces. It is used to strip off vendor-specific tags (which carry subscriber and line identification information) in PPPoE Discovery packets received from an upstream PPPoE server before forwarding them to a user.
String identifying the circuit identifier (or interface) on this switch to which the user is connected. (Range: 1-10 ASCII characters; Default: Unit/Port:VLAN-ID, or 0/Trunk-ID:VLAN-ID)
The PPPoE server extracts the Line-ID tag from PPPoE discovery stage messages, and uses the Circuit-ID field of that tag as a NAS-Port-ID attribute in AAA access and accounting requests.
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.
The configured circuit identifier.
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)
The configured circuit identifier.
Use the IP Service > PPPoE Intermediate Agent (Show Statistics) page to show statistics on PPPoE IA protocol messages.
Port or trunk selection.
Received PPPoE active discovery messages.
All PPPoE active discovery message types.
PPPoE Active Discovery Initiation messages.
PPPoE Active Discovery Offer messages.
PPPoE Active Discovery Request messages.
PPPoE Active Discovery Session-Confirmation messages.
PPPoE Active Discovery Terminate messages.
Dropped PPPoE active discovery messages.
Response from an interface which not been configured as trusted.
Request sent to an interface which not been configured as trusted.
Corrupted PPPoE message.