[ale] PPPoE vs. Streight Ethernet bridged ADSL (was Pleasehelp...)

[Raylynn Knight]

On Tue, 2002-07-30 at 23:50, Mike Panetta wrote:
> On Mon, 2002-07-29 at 20:56, Raylynn Knight wrote:
> > On Mon, 2002-07-29 at 18:23, Mike Panetta wrote:
> > > If I may ask, what is with the intense hatred for PPPoE on this list?  I
> > > currently use a Mindspring ADSL connection with PPPoE and its not that
> > > bad.  Its pretty fast, I seem to get the max theoretical speed possible
> > > (150K Bytes/s +), but I do have the ocasional outages (I blame this on
> > > mindspring, and the cheesy DSL bridge that I use though).
> > >
> > My understanding is that PPPoE can eat between 7-10% of your bandwidth
> > in unnecessary overhead. 
> 
> In my case it seems to be eating about 20% of the theoretical max I
> should get (1500kbps, I only get about 1200kbps).  So in that respect I
> can see why it would be "bad".  What are the typical rates some of the
> people on this list get from their providers (PPPoE or not)?
> 
> >  
> > > If they do not use PPPoE what do they use?  Is it a streight up bridge,
> > > or is it DHCP or what?
> > > 
> > 
> > A bridge or a router depending on connection and/or provider.  DHCP is
> > not necessary if you have a static IP?  If your connection is supposed
> > to be permanent (that's what your paying for isn't it?  And that's what
> > BellSouth advertises as an advantage of ADSL) then why don't you have a
> > static IP address?
> 
> I know DHCP is not necessary if you have a static IP, but in my head I
> guess I was trying to figure out how they controlled the connection. 
> With DHCP you can deny anyone who does not have a specific MAC address
> from connecting to their network, or do just the reverse and deny a
> person with a specific MAC address connection if they did not pay the
> bill.  How do they exercise this kind of control over the end user when
> no such mechanism exists?  Do they just call up bell south and have them
> physically disconnect the customer from the DSLAM?  This of course would
> assume that good communication existed between the ISP and their
> provider ;).  I assume that there could be other ways to police the
> connection, but its deffinately easier with PPPoE or DHCP (or both) then
> a streight up bridge.
> 

I would think that it would not be that hard for them to just stop
routing your assigned IP address/addresses.

Ray



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