Remote login with kdm

Hi,

I want to allow a remote login to a host that is
accessible via ssh with kdm.

In the login window of the other machines (Remote Login->
Host List), the login machine is visible. However, when
I choose it, I don't get the login screen of that machine
but the connection seems to be blocked and I return back
to the host list of the remote machines.

The machine I want to login runs Debian and KDE3. kdm
is installed and local logins work. I've already set up
kdm of the remote machine:
- in /etc/kde3/kdm/kdmrc I set
[Xdmcp]
Enable=true
- in /etc/kde3/kdm/Xaccess
* #any host can get a login window

However, the login still fails. Any ideas what else
might be wrong?

Regards,
Tim