• 10.0.0.1 — main router.
• 10.N.0.0/24 — Nth team network.
• 10.N.0.1 — Nth team router.
• 10.N.0.2 — computer with vmware.
• 10.N.0.3 — (inside vmware) vulnerable image.
• 10.N.0.4 — (inside vmware) image for testing network.
• 10.N.0.5 — 10.N.0.9 — reserved.
• 10.N.0.10 — 10.N.0.254 — computers of Nth team members.
• 10.254.0.0/24 — jury's network.

Team router — usual IBM PC-compatible computer with Debian GNU/Linux 4.0 stable (with latest security updates) — will be set up by organizers. Team may change configuation and software on their router, including OS, at its own peril.

There will be OpenVPN (wikipedia://OpenVPN) tunnel between main router and teams' routers.

One of the computers given to team will have Debian GNU/Linux 4.0 stable (with latest security updates), VMware Server 1.0.5 and image for testing network. In case of necessity team may change configuation and software on this computer, including OS, at its own peril.

Teams may change configuration of their subnetwork at their own peril.