On Thu, Dec 5, 2019 at 2:41 PM Warner Losh <imp@bsdimp.com> wrote:

>
>
> On Thu, Dec 5, 2019 at 9:40 AM Clem Cole <clemc@ccc.com> wrote:
>
>> The original SLIP 'kit' from Harvard/MIT lacked anything like PPPD to
>> start and was sort of ad hoc.
>>
>
> ...

> It was hit dinosaur over head with club level of sophistication, if it was
> that advanced...
>
Right, as I said -- pretty ad hoc.

I note the CMU code, has an if_sl.c edit tag.  Which makes sense that it
goes back to the original SLIP code.