ZyXEL Communications MES3500-24 Benutzerhandbuch
Chapter 31 PPPoE
MES3500-24/24F User’s Guide
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Trusted ports are connected to PPPoE servers.
• If a PADO (PPPoE Active Discovery Offer), PADS (PPPoE Active Discovery Session-confirmation),
or PADT (PPPoE Active Discovery Terminate) packet is sent from a PPPoE server and received on
a trusted port, the Switch forwards it to all other ports.
a trusted port, the Switch forwards it to all other ports.
• If a PADI or PADR packet is sent from a PPPoE client but received on a trusted port, the Switch
forwards it to other trusted port(s).
Note: The Switch will drop all PPPoE discovery packets if you enable the PPPoE
intermediate agent and there are no trusted ports.
Untrusted ports are connected to subscribers.
• If a PADI, PADR, or PADT packet is sent from a PPPoE client and received on an untrusted port,
the Switch adds a vendor-specific tag to the packet and then forwards it to the trusted port(s).
• The Switch discards PADO and PADS packets which are sent from a PPPoE server but received on
an untrusted port.
31.2 The PPPoE Screen
Use this screen to configure the PPPoE Intermediate Agent on the Switch.
Click Advanced Application > PPPoE in the navigation panel to display the screen as shown.
Click Click Here to go to the Intermediate Agent screen.
Click Click Here to go to the Intermediate Agent screen.
Figure 138
Advanced Application > PPPoE Intermediate Agent
31.3 PPPoE Intermediate Agent
Use this screen to configure the Switch to give a PPPoE termination server additional subscriber
information that the server can use to identify and authenticate a PPPoE client.
information that the server can use to identify and authenticate a PPPoE client.