1*nat 2:PREROUTING ACCEPT [0:0] 3:INPUT ACCEPT [0:0] 4:OUTPUT ACCEPT [8:656] 5:POSTROUTING ACCEPT [8:656] 6COMMIT 7 8*mangle 9:PREROUTING ACCEPT [794:190738] 10:INPUT ACCEPT [794:190738] 11:FORWARD ACCEPT [0:0] 12:OUTPUT ACCEPT [991:170303] 13:POSTROUTING ACCEPT [991:170303] 14COMMIT 15 16*raw 17:PREROUTING ACCEPT [794:190738] 18:OUTPUT ACCEPT [991:170303] 19COMMIT 20 21*filter 22:INPUT DROP [0:0] 23:FORWARD DROP [0:0] 24:OUTPUT ACCEPT [991:170303] 25-A INPUT -i lo -j ACCEPT 26-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT 27-A INPUT -p ipv6-icmp -j ACCEPT 28-A OUTPUT -p tcp -m tcp --dport 137 -j REJECT --reject-with icmp6-port-unreachable 29-A OUTPUT -p udp -m udp --dport 137 -j REJECT --reject-with icmp6-port-unreachable 30COMMIT 31