[MIT] Simple telnet question

[Philippe Perrin]

Hello

I was trying to test telnet compatibility between the MIT V5 Kerberos and
Heimdal (succesfully) when I came accross a strange question. The 3 tests
below work correctly :
    1) MIT Server with Heimdal Client
    2) Heimdal Server with MIT Client
    3) Heimdal Server with Heimdal Client (!)
But what doesn't work is :
    4) MIT Server with MIT Client (!)

Any idea of why I can't make the MIT client work with its own server ? I
don't think either or them has a problem, since they both interoperate with
Heimdal correctly. Any hint about the command line switches or configuration
files ?

Philippe