Hello everybody Well, still Iâm trying to fix this thing. I found out some information on this thread: http://forums.isaserver.org/m_2002003457/mpage_1/tm.htm However, thereâs something I canât really get: according to the thread I can have a route relationship between an internal DMZ (with private addresses) and the External network. I canât understand how it may workâ. Doesnât it have to be a NAT relationship? How on earth can the external client ever make a connection with a private address in my network without using NAT? Thanks a lot for your comments. Regards, Wilmar