root@OpenWrt:~# iptables -L -v; iptables -L -v -t nat
Chain INPUT (policy DROP 0 packets, 0 bytes)
 pkts bytes target     prot opt in     out     source               destination
    0     0 DROP       all  --  any    any     anywhere             anywhere            state INVALID
  999  162K ACCEPT     all  --  any    any     anywhere             anywhere            state RELATED,ESTABLISHED
    0     0 DROP       tcp  --  any    any     anywhere             anywhere            tcp option=!2 flags:SYN/SYN
  545 30026 input_rule  all  --  any    any     anywhere             anywhere
  545 30026 ACCEPT     all  --  !vlan1 any     anywhere             anywhere
    0     0 ACCEPT     icmp --  any    any     anywhere             anywhere
    0     0 ACCEPT     gre  --  any    any     anywhere             anywhere
    0     0 REJECT     tcp  --  any    any     anywhere             anywhere            reject-with tcp-reset
    0     0 REJECT     all  --  any    any     anywhere             anywhere            reject-with icmp-port-unreachable

Chain FORWARD (policy DROP 74 packets, 3984 bytes)
 pkts bytes target     prot opt in     out     source               destination
    0     0 DROP       all  --  any    any     anywhere             anywhere            state INVALID
   57  2964 TCPMSS     tcp  --  any    any     anywhere             anywhere            tcp flags:SYN,RST/SYN TCPMSS clamp to PMTU
    6   240 ACCEPT     all  --  any    any     anywhere             anywhere            state RELATED,ESTABLISHED
   74  3984 forwarding_rule  all  --  any    any     anywhere             anywhere
    0     0 ACCEPT     all  --  br0    br0     anywhere             anywhere
    0     0 ACCEPT     all  --  br0    vlan1   anywhere             anywhere

Chain OUTPUT (policy DROP 0 packets, 0 bytes)
 pkts bytes target     prot opt in     out     source               destination
    0     0 DROP       all  --  any    any     anywhere             anywhere            state INVALID
 1703  588K ACCEPT     all  --  any    any     anywhere             anywhere            state RELATED,ESTABLISHED
   14  1000 output_rule  all  --  any    any     anywhere             anywhere
   14  1000 ACCEPT     all  --  any    any     anywhere             anywhere
    0     0 REJECT     tcp  --  any    any     anywhere             anywhere            reject-with tcp-reset
    0     0 REJECT     all  --  any    any     anywhere             anywhere            reject-with icmp-port-unreachable

Chain forward_vlan1 (1 references)
 pkts bytes target     prot opt in     out     source               destination

Chain forwarding_rule (1 references)
 pkts bytes target     prot opt in     out     source               destination
    0     0 forward_vlan1  all  --  vlan1  any     anywhere             anywhere

Chain input_rule (1 references)
 pkts bytes target     prot opt in     out     source               destination
    0     0 input_vlan1  all  --  vlan1  any     anywhere             anywhere

Chain input_vlan1 (1 references)
 pkts bytes target     prot opt in     out     source               destination

Chain output_rule (1 references)
 pkts bytes target     prot opt in     out     source               destination
Chain PREROUTING (policy ACCEPT 667 packets, 40277 bytes)
 pkts bytes target     prot opt in     out     source               destination
  667 40277 prerouting_rule  all  --  any    any     anywhere             anywhere

Chain POSTROUTING (policy ACCEPT 12 packets, 2798 bytes)
 pkts bytes target     prot opt in     out     source               destination
   10   740 postrouting_rule  all  --  any    any     anywhere             anywhere
    0     0 MASQUERADE  all  --  any    vlan1   anywhere             anywhere

Chain OUTPUT (policy ACCEPT 12 packets, 2798 bytes)
 pkts bytes target     prot opt in     out     source               destination

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

Chain prerouting_rule (1 references)
 pkts bytes target     prot opt in     out     source               destination
    0     0 prerouting_vlan1  all  --  vlan1  any     anywhere             anywhere

Chain prerouting_vlan1 (1 references)
 pkts bytes target     prot opt in     out     source               destination
root@OpenWrt:~#