PPPoE: PPP over Ethernet PPPoE is configured as a point to point connection between two Ethernet ports. PPP over Ethernet (PPPoE) provides the ability to connect a network of hosts over a simple bridging access device to a remote Access Concentrator This PPT gives an overview of the PPPoE, explains the various stages,some packet formats, implementation details and options.

1. PPPoE
PPP over Ethernet

2. Introduction
• PPPoE is configured as a point to point
connection between two Ethernet ports. PPP
over Ethernet (PPPoE) provides the ability to
connect a network of hosts over a simple
bridging access device to a remote Access
Concentrator

3. PPPoE has two distinct stages
• Discovery Stage
• PPP Session Stage

4. HOST=cc:05:0e:88:00:00
Destination
The Host sends the PADI packet
DESTINATION_ADDR= Broadcast Address
CODE field=0x09
SESSION_ID=0x0000
Discovery Stage
The PPPoE Active Discovery Offer (PADO) packet
DESTINATION_ADDR=Unicast Address of Host
CODE field=0x07
SESSION_ID=0x0000
The PPPoE Active Discovery Request (PADR) packet
DESTINATION_ADDR=Unicast Ethernet
CODE field=0x19
SESSION_ID=0x000
The PPPoE Active Discovery Session-confirmation
(PADS) packet
Begin PPP Session
CODE field=0x65
SESSION_ID=Unique Value
Destination=ff:ff:ff:ff:ff:f
Destination=ca:01:0e:8
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