What is a difference "Auth-Type eap"(with Auth-Type) and "eap"(without Auth-Type) in the "authenticate" section?

[Alan DeKok]

On Feb 19, 2019, at 7:35 PM, Hiroyuki Sato <hiroysato at gmail.com> wrote
> 
> Does this mean that the following configure are equal until I add
> multiline in "Auth-Type" block?
> Is this correct?

  Yes, that's what I said.

> If so, I would like to know why mschap require two entries like the following?
> I'm not sure "For old names" mean.

  Because the string "MS-CHAP" is different from the string "mschap".

  People use both names, so we provide configuration for both names so that they both work.

  Alan DeKok.