ip6tables -A INPUT -m state --state NEW -p udp --dport 53614 -j ACCEPT
гугл этим непомог:
ip6tables -P INPUT ACCEPT
ip6tables -P OUTPUT ACCEPT
если таблы отключить то все конектится.
Chain INPUT (policy ACCEPT)
target prot opt source destination
ACCEPT all anywhere anywhere state RELATED,ESTABLISHED
ACCEPT ipv6-icmp anywhere anywhere
ACCEPT all anywhere anywhere
ACCEPT tcp anywhere anywhere state NEW tcp dpt:ssh
ACCEPT udp anywhere fe80::/64 udp dpt:dhcpv6-client state NEW
REJECT all anywhere anywhere reject-with icmp6-adm-prohibited
ACCEPT udp anywhere anywhere state NEW udp dpt:53614
Chain FORWARD (policy ACCEPT)
target prot opt source destination
REJECT all anywhere anywhere reject-with icmp6-adm-prohibited
Chain OUTPUT (policy ACCEPT)
target prot opt source destination