=================================
Design by Neo chan
Homepage: http://netkiller.sf.net
=================================

Internet    ____________________________________________
  |  |     /                                            |
  v  v    v                                             |
+---------------------------------------------------+   |
|[1] [3] [5] [7] [] [] [] [] [] [] [] []     Switch |   |
|[2] [4] [6] [8] [] [] [] [] [] [] [] []  [SFP][SFP]|   |
+---------------------------------------------------+   |
  |         ____________________________________________/
  v        /
+---------------------------------------------------+
| [Wan]  [LAN]   [DMZ]                     Firewall |
|                                         [Console] |
+---------------------------------------------------+

Vlan 2
------------------
G0/0/1-4

Port
------------------
G0/0/1 		Internet Active Line
G0/0/3 		Internet Stand by Line
G0/0/4 		Debug, Mirror or Other

G0/0/2 		Firewal Outside
G0/0/5 		Firewal Inside

G0/0/6-24	Server
			

3.1.1. DIY Firewall & VPN

If you do not have enough money to buy a firewall, I'll tell you how to do a one.

Iptables + TC + Openvpn / PPTP | L2TP

3.1.1.1. Firewall

3.1.1.2. 3 Layer VPN

3.1.1.3. 7 Layer VPN