/ $ iptables -L -n -v
Chain INPUT (policy ACCEPT 17 packets, 736 bytes)
 pkts bytes target     prot opt in     out     source               destination

    4   208 ACCEPT     0    --  lo     *       0.0.0.0/0            0.0.0.0/0

  153 10718 ACCEPT     0    --  *      *       0.0.0.0/0            0.0.0.0/0
        state RELATED,ESTABLISHED
    0     0 DROP       tcp  --  *      *       0.0.0.0/0            0.0.0.0/0
        tcp flags:!0x17/0x02 state NEW
   17   736 FIREWALL_INP  0    --  *      *       0.0.0.0/0            0.0.0.0/0
           state NEW

Chain FORWARD (policy DROP 42 packets, 6692 bytes)
 pkts bytes target     prot opt in     out     source               destination

    0     0 ACCEPT     0    --  *      *       0.0.0.0/0            0.0.0.0/0
        state RELATED,ESTABLISHED
    4   192 FIREWALL_FWD  0    --  *      *       0.0.0.0/0            0.0.0.0/0
           state NEW
   42  6692 LOG        0    --  *      *       0.0.0.0/0            0.0.0.0/0
        LOG flags 0 level 4 prefix `FORWARD-DROP'

Chain OUTPUT (policy ACCEPT 239 packets, 38322 bytes)
 pkts bytes target     prot opt in     out     source               destination

    4   208 ACCEPT     0    --  *      lo      0.0.0.0/0            0.0.0.0/0


Chain FIREWALL_FWD (1 references)
 pkts bytes target     prot opt in     out     source               destination

    0     0 DROP       tcp  --  *      *       0.0.0.0/0            0.0.0.0/0
        tcp flags:!0x17/0x02
    0     0 ACCEPT     0    --  dsl    *       0.0.0.0/0            0.0.0.0/0

    4   192 PORT_1     0    --  *      *       192.168.1.20         0.0.0.0/0

    0     0 LOG        0    --  *      *       0.0.0.0/0            0.0.0.0/0
        LOG flags 0 level 4 prefix `Dropped connection: '
    0     0 DROP       0    --  *      *       0.0.0.0/0            0.0.0.0/0


Chain FIREWALL_INP (1 references)
 pkts bytes target     prot opt in     out     source               destination

    0     0 DROP       tcp  --  *      *       0.0.0.0/0            0.0.0.0/0
        tcp flags:!0x17/0x02
    0     0 ACCEPT     0    --  dsl    *       0.0.0.0/0            0.0.0.0/0


Chain PORT_1 (1 references)
 pkts bytes target     prot opt in     out     source               destination

    0     0 ACCEPT     icmp --  *      *       0.0.0.0/0            0.0.0.0/0

    0     0 ACCEPT     udp  --  *      *       0.0.0.0/0            0.0.0.0/0
        udp dpt:53
    0     0 ACCEPT     tcp  --  *      *       0.0.0.0/0            0.0.0.0/0
        tcp dpt:53
    1    48 ACCEPT     tcp  --  *      *       0.0.0.0/0            0.0.0.0/0
        tcp dpt:80
    3   144 ACCEPT     tcp  --  *      *       0.0.0.0/0            0.0.0.0/0
        tcp dpt:443
    0     0 ACCEPT     udp  --  *      *       0.0.0.0/0            0.0.0.0/0
        udp dpts:1000:2000