Не могу добавить правило в iptables

-A INPUT -d 10.100.0.2 -p udp -m state --state NEW -m udp --dport 1701 -m comment --comment "L2TP" -j ACCEPT
-A INPUT -d 10.100.0.2 -p udp -m state --state NEW -m udp --dport 500 -m comment --comment "IKEv2" -j ACCEPT
-A INPUT -d 10.100.0.2 -p udp -m state --state NEW -m udp --dport 4500 -m comment --comment "IKEv2" -j ACCEPT

service iptables restart
iptables: Setting chains to policy ACCEPT: filter nat      [  OK  ]
iptables: Flushing firewall rules:                         [  OK  ]
iptables: Unloading modules:                               [  OK  ]
iptables: Applying firewall rules: iptables-restore: line 39 failed
                                                           [FAILED]