root@OpenWrt:~# route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
67.52.47.64     0.0.0.0         255.255.255.248 U     0      0        0 br-wan
67.53.149.128   0.0.0.0         255.255.255.128 U     0      0        0 br-cable
192.168.182.0   0.0.0.0         255.255.255.0   U     0      0        0 br-lan
192.168.0.0     172.23.4.2      255.255.255.0   UG    0      0        0 tap0
172.23.4.0      0.0.0.0         255.255.255.0   U     0      0        0 tap0
0.0.0.0         67.53.149.129   0.0.0.0         UG    0      0        0 br-cable
root@OpenWrt:~#
root@OpenWrt:~# iptables-save
# Generated by iptables-save v1.3.8 on Fri Mar  7 06:49:49 2008
*nat
:PREROUTING ACCEPT [23199:1629951]
:POSTROUTING ACCEPT [23598:1626283]
:OUTPUT ACCEPT [201:16307]
:nat-lan - [0:0]
-A PREROUTING -d 67.52.47.64 -i br-cable -j DNAT --to-destination 192.168.182.50
-A PREROUTING -d 67.52.47.71 -i br-cable -j DNAT --to-destination 192.168.182.71
-A PREROUTING -d 67.52.47.69 -i br-cable -j DNAT --to-destination 192.168.182.72
-A POSTROUTING -s 192.168.182.50 -o br-cable -j SNAT --to-source 67.52.47.64
-A POSTROUTING -s 192.168.182.71 -o br-cable -j SNAT --to-source 67.52.47.71
-A POSTROUTING -s 192.168.182.72 -o br-cable -j SNAT --to-source 67.52.47.69
-A POSTROUTING -s 192.168.182.0/255.255.255.0 -j nat-lan
-A nat-lan -d 67.52.47.64/255.255.255.248 -j RETURN
-A nat-lan -d 192.168.0.0/255.255.0.0 -j RETURN
-A nat-lan -d 10.0.0.0/255.0.0.0 -j RETURN
-A nat-lan -d 172.16.0.0/255.240.0.0 -j RETURN
-A nat-lan -o br-cable -j SNAT --to-source 67.52.47.65
COMMIT
# Completed on Fri Mar  7 06:49:49 2008
# Generated by iptables-save v1.3.8 on Fri Mar  7 06:49:49 2008
*mangle
:PREROUTING ACCEPT [1517816:134045112]
:INPUT ACCEPT [34336:3253524]
:FORWARD ACCEPT [1483365:130786292]
:OUTPUT ACCEPT [26082:2760657]
:POSTROUTING ACCEPT [1511596:133684597]
COMMIT
# Completed on Fri Mar  7 06:49:49 2008
# Generated by iptables-save v1.3.8 on Fri Mar  7 06:49:49 2008
*filter
:INPUT ACCEPT [34339:3253644]
:FORWARD ACCEPT [1483365:130786292]
:OUTPUT ACCEPT [26090:2761665]
COMMIT
# Completed on Fri Mar  7 06:49:49 2008