<HTML>Internet<BR><BR>ADSL modem<BR><BR>
Firewall-Bridge with OpenBSD<BR><BR>
Switch 1<BR><BR>
Firewall-Router with OpenBSD<BR><BR>
Switch 2<BR><BR>
Dual-Homed-Bastion-Host-[DMZ-2-NIC's] with OpenBSD<BR><BR>
Switch 3<BR><BR>
Firewall-Router with OpenBSD<BR><BR>
Switch 4<BR><BR>
Firewall-Bridge with OpenBSD<BR><BR>
Switch 5<BR><BR>
client A with FreeBSD/ client B with NetBSD/ client C with OpenBSD/ client D with RedHat-Linux/ client E with Debian-Linux/<BR><BR><A HREF="http://www.theos.com/">http://www.theos.com/</A><BR><A HREF="http://www.openbsd.org/images/rack.jpg">http://www.openbsd.org/images/rack.jpg</A></HTML>