GS1920 Series User’s Guide
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CHAPTER 28
PPPoE
28.1 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.
Figure 169 PPPoE Intermediate Agent (PPPoE IA) Overview
28.1.1 What You Can Do
• Use the PPPoE screen (Section 28.2 on page 234) to display the main PPPoE screen.
• Use the Intermediate Agent screen (Section 28.3 on page 234) to enable the PPPoE
Intermediate Agent on the Switch.
• Use the PPPoE IA Per-Port screen (Section 28.3.1 on page 235) to set the port state and
configure PPPoE intermediate agent sub-options on a per-port basis.
• Use the PPPoE IA Per-Port Per-VLAN screen (Section 28.3.2 on page 237) to configure PPPoE
IA settings that apply to a specific VLAN on a port.
• Use the PPPoE IA for VLAN (Section 28.3.3 on page 238) to enable the PPPoE Intermediate
Agent on a VLAN.
28.1.2 What You Need to Know
Read on for concepts on ARP that can help you configure the screen in this chapter.
PPPoE IA
PPPoE Server
PPPoE Client
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