Have you by chance seen this FAQ?
It should help for what you want to do. A couple of side notes:
* You should NOT have server based proxy configured. In your servers
config, all should hsould none for auto proxy.
* You just need to list the megapop servers in your servers list in
the Emerald admin with the correct secrets.
* With RadiusNT 2.5.212 and higher, you do NOT need to setup the
treat as local/radroamdomain dummy entry. Just make sure your
flag is set to 3 and it will handle it automatically for you.
Dale E. Reed Jr. Emerald and RadiusNT__________________________________________IEA Software, Inc. www.iea-software.com
For more information about this list (including removal) go to:http://www.iea-software.com/support/maillists/liststart