Chapter 8
| Authentication Commands
PPPoE Intermediate Agent
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forwards this information to all trusted ports designated by the pppoe
intermediate-agent trust command. 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.
◆ PPPoE IA must be enabled globally by this command before this feature can be
enabled on an interface using the pppoe intermediate-agent port-enable
command.
Example
Console(config)#pppoe intermediate-agent
Console(config)#
pppoe intermediate-
agent format-type
This command sets the access node identifier and generic error message for the
switch. Use the no form to restore the default settings.
Syntax
pppoe intermediate-agent format-type {access-node-identifier id-string |
generic-error-message error-message}
no pppoe intermediate-agent format-type {access-node-identifier |
generic-error-message}
id-string - String identifying this switch as an PPPoE IA to the PPPoE server.
(Range: 1-48 ASCII characters)
error-message - An error message notifying the sender that the PPPoE
Discovery packet was too large.
Default Setting
◆ Access Node Identifier: IP address of the management interface
◆ Generic Error Message: PPPoE Discover packet too large to process. Try
reducing the number of tags added.
Command Mode
Global Configuration
Command Usage
◆ 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 by the pppoe
intermediate-agent trust command.
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