Pppoe; Chapter 29 Pppoe; Pppoe Intermediate Agent Overview; What You Can Do - ZyXEL Communications XS1930-12F User Manual

29.1 PPPoE Intermediate Agent Overview

This chapter describes how the Switch gives a PPPoE termination server additional information that the
server can use to identify and authenticate a PPPoE client.
A PPPoE Intermediate Agent (PPPoE IA) is deployed between a PPPoE server and PPPoE clients. It helps
the PPPoE server identify and authenticate clients by adding subscriber line specific information to
PPPoE discovery packets from clients on a per-port or per-port-per-VLAN basis before forwarding them
to the PPPoE server.

29.1.1 What You Can Do

• Use the PPPoE screen
• Use the Intermediate Agent screen
Agent on the Switch.
• Use the PPPoE IA Per-Port screen
PPPoE intermediate agent sub-options on a per-port basis.
• Use the PPPoE IA Per-Port Per-VLAN screen
that apply to a specific VLAN on a port.
• Use the PPPoE IA for VLAN
VLAN.

29.1.2 What You Need to Know

Read on for concepts on ARP that can help you configure the screen in this chapter.
29.1.2.1 PPPoE Intermediate Agent Tag Format
If the PPPoE Intermediate Agent is enabled, the Switch adds a vendor-specific tag to PADI (PPPoE
Active Discovery Initialization) and PADR (PPPoE Active Discovery Request) packets from PPPoE clients.

Chapter 29 PPPoE

(Section 29.2 on page 233) to display the main PPPoE screen.
(Section 29.3 on page
(Section 29.3.1 on page
(Section 29.3.2 on page
(Section 29.3.3 on page
XS1930 Series User's Guide
231
C
H A P T E R
234) to enable the PPPoE Intermediate
235) to set the port state and configure
236) to configure PPPoE IA settings
237) to enable the PPPoE Intermediate Agent on a
29

PPPoE