Solved IPTable/IPWhitelist don't work

If I use iptable, I can't join and say me:
Could not connect to a default or fallback server, please try again later: io.netty.channel.ConnectTimeoutException

Code (Text):

iptables -F
iptables -X
iptables -N bungee

iptables -A bungee --src 1.2.3.4 -j ACCEPT #1.2.3.4 is my ip

iptables -A bungee -j DROP

iptables -I INPUT -m tcp -p tcp --dport 25566:25570 -j bungee
 

And if I use IPWhitelist, it say me the playerKickMessage: "&cYou have to join through the proxy."

Solved: I use OnlyProxyJoin