Chapter 41 PPPoE
GS1920v2 Series User’s Guide
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41.4  PPPoE IA Port VLAN
Use this screen to configure PPPoE IA settings that apply to a specific VLAN on a port.
Click SWITCHING > PPPoE Intermediate Agent > PPPoE IA Port VLAN to display the screen as shown.
Server Trusted 
State
Select whether this port is a trusted port (Trusted) or an untrusted port (Untrusted).
Trusted ports are uplink ports 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.
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 ports.
Untrusted ports are downlink ports 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 ports.
The Switch discards PADO and PADS packets which are sent from a PPPoE server but received 
on an untrusted port.
Circuit-ID Enter a string of up to 63 ASCII characters (except [ ? ], [ | ], [ ' ], [ " ], or [ , ]) that the Switch adds 
into the Agent Circuit ID sub-option for PPPoE discovery packets received on this port. Spaces 
are allowed.
The Circuit ID you configure for a specific VLAN on a port (in the SWITCHING > PPPoE 
Intermediate Agent > PPPoE IA Port VLAN screen) has the highest priority.
Remote-ID Enter a string of up to 63 ASCII characters (except [ ? ], [ | ], [ ' ], [ " ], or [ , ]) that the Switch adds 
into the Agent Remote ID sub-option for PPPoE discovery packets received on this port. Spaces 
are allowed.
If you do not specify a string here or in the Remote-ID field for a VLAN on a port, the Switch 
automatically uses the PPPoE client’s MAC address.
The Remote ID you configure for a specific VLAN on a port (in the SWITCHING > PPPoE 
Intermediate Agent > PPPoE IA Port VLAN screen) has the highest priority.
Apply Click Apply to save your changes to the Switch’s run-time memory. The Switch loses these 
changes if it is turned off or loses power, so use the Save link on the top navigation panel to save 
your changes to the non-volatile memory when you are done configuring.
Cancel Click Cancel to begin configuring this screen afresh.
Table 132   SWITCHING > PPPoE Intermediate Agent > PPPoE IA Port (continued)
LABEL DESCRIPTION