Re: General Questions about PPPOE between Client and Provider
PPPoE is PPP emulation over ethernet.
You just need to configure one side as a client and one as a server.
All the VPDN and dialer stuff is used in order to have the client to make a logical call.
Think of DDR on ISDN the concepts are the same: the client needs a reason to perform a call, then the PPP negotiation starts.
Here you needs to trigger PPP negotiation, during this phase and the IPCP phase for IPV4 one side can ask an IP address to the other part (this is the meaning of ip address negotiated) . This is the way how IP addresses assignment works on PPP, PPPoX
You can use debug ppp negotation to see the whole process. It is very instructive.
The server can assign IP addresses from a pool to the current clients.
Negotiation includes ip address and possibly a default route on the point-to-point logical link.
Notice that you should need to use physical interfaces if the pppoe commands are not accepted on subinterfaces.
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