root@OpenWrt:~# iptables_removeall.sh
iptables: No chain/target/match by that name
iptables v1.3.5: Couldn't load target `MINIUPNPD':File not found

Try `iptables -h' or 'iptables --help' for more information.
iptables: No chain/target/match by that name
iptables: No chain/target/match by that name
iptables: Too many links

root@OpenWrt:~# iptables -L
Chain MINIUPNPD (1 references)
target     prot opt source               destination