Pppoe; C Ha Pte R 32 Pppo E; Pppoe Intermediate Agent Overview; What You Can Do - ZyXEL Communications GS2220 Series User Manual

32.1 PPPo E Inte rm e dia te Ag e nt O ve rvie w
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.
32.1.1 Wha t Yo u C a n Do
• Use the
PPPo E
• Use the
Inte rm e dia te Ag e nt
Agent on the Switch.
• Use the
PPPo E IA Pe r- Po rt
PPPoE intermediate agent sub-options on a per-port basis.
• Use the
PPPo E IA Pe r- Po rt Pe r- VL AN
that apply to a specific VLAN on a port.
• Use the
PPPo E IA fo r VL AN
VLAN.
32.1.2 Wha t Yo u Ne e d to Kno w
Read on for concepts on ARP that can help you configure the screen in this chapter.
32.1.2.1 PPPo E Inte rm e dia te Ag e nt T a g Fo rm a t
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 32 PPPoE
screen (Section 32.2 on page
screen (Section 32.3 on page
screen (Section 32.3.1 on page
screen
(Section 32.3.3 on page
GS2220 Series User's Guide
C
HA PTER
302) to display the main PPPoE screen.
303) to enable the PPPoE Intermediate
304) to set the port state and configure
(Section 32.3.2 on page
306) to enable the PPPoE Intermediate Agent on a
300
3 2
PPPo E
305) to configure PPPoE IA settings