___	         ___
	|   |     |     |   |
	|   |	  |	|   |	
	| A |	  |	| B |
	|___|	  |	|___|
192.168.2.2|      |	 |192.168.1.2 	
	   |      |  DMZ | 
	   |___	  |   ___|	 
               |  |  |
192.168.2.1    |  |  |  192.168.1.1   
	    __ |_____|___  		
	   |_0_1_2_3_4_W_|
	     |
	     |
	     |
	  Internet


   

ifconfig:

br0       Link encap:Ethernet  HWaddr 00:12:17:DF:B3:55  
          inet addr:192.168.2.1  Bcast:192.168.2.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:919716 errors:0 dropped:0 overruns:0 frame:0br0       
          collisions:0 txqueuelen:0 
          RX bytes:60049071 (57.2 MiB)  TX bytes:970766746 (925.7 MiB)

eth0      Link encap:Ethernet  HWaddr 00:12:17:DF:B3:55  
          UP BROADCAST RUNNING PROMISC MULTICAST  MTU:1500  Metric:1
          RX packets:1345228 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1144792 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:1128211780 (1.0 GiB)  TX bytes:229448488 (218.8 MiB)
          Interrupt:5 

eth1      Link encap:Ethernet  HWaddr 00:12:17:DF:B3:57  
          UP BROADCAST RUNNING ALLMULTI MULTICAST  MTU:1500  Metric:1
          RX packets:921314 errors:0 dropped:0 overruns:0 frame:3675817
          TX packets:1097181 errors:667 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:73066844 (69.6 MiB)  TX bytes:980134529 (934.7 MiB)
          Interrupt:4 Base address:0x1000 

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:82 errors:0 dropped:0 overruns:0 frame:0
          TX packets:82 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:6823 (6.6 KiB)  TX bytes:6823 (6.6 KiB)

ppp0      Link encap:Point-Point Protocol  
          inet addr:10.10.3.129  P-t-P:10.10.1.254  Mask:255.255.255.255
          UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1500  Metric:1
          RX packets:137873 errors:0 dropped:0 overruns:0 frame:0
          TX packets:69365 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:3 
          RX bytes:193460857 (184.4 MiB)  TX bytes:2775649 (2.6 MiB)

vlan0     Link encap:Ethernet  HWaddr 00:12:17:DF:B3:55  
          UP BROADCAST RUNNING ALLMULTI MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1608 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:0 (0.0 B)  TX bytes:164731 (160.8 KiB)

vlan1     Link encap:Ethernet  HWaddr 00:12:17:DF:B3:55  
          inet addr:82.245.252.174  Bcast:82.245.252.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:1257309 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1019563 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:1086427439 (1.0 GiB)  TX bytes:94623775 (90.2 MiB)

vlan2     Link encap:Ethernet  HWaddr 00:12:17:DF:B3:55  
          inet addr:192.168.1.1  Bcast:192.168.1.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:87822 errors:0 dropped:0 overruns:0 frame:0
          TX packets:123617 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:17572326 (16.7 MiB)  TX bytes:129629899 (123.6 MiB)


nvram :
 
  OpenWrt:~# nvram show | grep vlan0

   vlan0ports=1 2 3 5*
   vlan0hwname=et0
   lan_ifnames=vlan0 eth1 eth2

  OpenWrt:~# nvram show | grep vlan1

   wan_device=vlan1
   wan_ifname=vlan1
   vlan1hwname=et0
   vlan1ports=0 5

  OpenWrt:~# nvram show | grep vlan2
   
   vlan2ports=4 5
   vlan2hwname=et0
   dmz_ifname=vlan2
	

/etc/firewall.user

DMZ=$(nvram get dmz_ifname)

iptables -A forwarding_rule -i $DMZ -o $WAN  -j ACCEPT