ZyXEL GS1920 Series User Guide - Page 231
PPPoE
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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 PPPoE Client PPPoE IA PPPoE Server 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. GS1920 Series User's Guide 231