Default attributes

[Norbert Wegener]

On different equipment the following profiles give me connections, that 
behave identically.

user1 at myrealm Auth-Type := Local, User-Password == "12345"
   Service-Type = Framed-User,
      Framed-Protocol = PPP



user1 at myrealm Auth-Type := Local, User-Password == "12345"
   Service-Type = Framed-User


user1 at myrealm Auth-Type := Local, User-Password == "12345"


Are Service-Type = Framed-User and Framed-Protocol = PPP
defaults these days or do those connections work only  accidentally?

Thanks
Norbert Wegener