How to configure Kerberos 4 client using Kerberos 5

[Dennis Qiu]

Hey:

I am new to this mail group. I am currently setting up
Eudora 5.1 to use Kerberos as an authentication method. One 
problem is Eudora use Kerberos 4 client and I am using
Kerberos 5 (1.2.4) as KDC. 

Can anyone point me a Website having the document regarding 
how to set up Kerberos 5 KDC running in Kerberos 4 compatibility
mode. I appreciate the help.


Dennis Qiu