GS1920 Series User’s Guide 218
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 158 PPPoE Intermediate Agent (PPPoE IA) Overview
28.1.1 What You Can Do
•Use the PPPoE screen (Section 28.2 on page 221) to display the main PPPoE screen.
•Use the Intermediate Agent screen (Section 28.3 on page 221) to enable the PPPoE
Intermediate Agent on the Switch.
•Use the PPPoE IA Per-Port screen (Section 28.3.1 on page 222) 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 224) 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 225) 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
