"Louis A. Mamakos" wrote:
>
> > while I'm not intimately familiar with PPPoE, it's obvious that
> > it cannot use IP addresses for its underlying communication; it must use
> > MAC addresses and have its own DLC mechanism. This suggests that its
> > packets probably have a unique Ethertype. Does anyone know offhand what
> > that type is, so that we can instruct the bridges to allow it through?
> > (Currently, the bridges only allow TCP, UDP, ICMP, and ARP and block
> > types such as IPX.)
>
> Yes, it uses two different registered ethernet types (which I/UUNET
> paid $5000 to the IEEE to get) and they are (from RFC-2516):
>
> The ETHER_TYPE is set to either 0x8863 (Discovery Stage) or 0x8864
> (PPP Session Stage).
>
> See http://www.ietf.org/rfc/rfc2516.txt for more details on the protocol, if
> you care.
unless you are telebrazilia/3com in which case you use two totally
different ethertypes just for the fun of it.
>
> louie
>
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