James Carlson wrote:
> ...
> The second feature in this project allows for interoperability with
> some peculiar PPPoE access devices that use Ethertype values other
> than those documented in RFC 2516.  These devices appear to be popular
> in some non-US locations.  (See CR 4695172 for details.)
>
> The additions for this feature are a new "-s" option for the
> sppptun(1M) command:
>
>       sppptun plumb [-s <sap>] [<protocol> <device>]
>
> This allows the user to specify a particular SAP (Ethertype) value in
> hexadecimal to be used for each plumbed stream.  The more common way
> to configure PPPoE, though, is through the /etc/ppp/pppoe.if file,
> which is used to run sppptun at boot time.  This file currently takes
> one interface name per line.  It will be updated to use this syntax:
>
>       if-name [session-SAP [discovery-SAP]]
>
> where session-SAP and discovery-SAP are used to set the SAP values for
> sppptun.  The problem described in the original bug report could now
> be handled by using:
>
>       e1000g0 3c13 3c12
>
> The defaults (per RFC 2516) are 8864 and 8863, respectively.  The
> sppptun(1M) man page, which describes both the sppptun command line
> and the /etc/ppp/pppoe.if file, will be updated to describe the new
> interfaces.

What use do you forsee for these new configuration options?
... why would I ever want to change it?
To me, it looks like I never would, so I'm wondering if these
new interfaces are even necessary?

A non architectural question...
What happens if they're configured in reverse or to be the same#?

Darren


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