为比特彗星开放IPv6端口
ip6tables -A FORWARD -p tcp --dport [BitComet端口] -j ACCEPT
ip6tables -A FORWARD -p udp --dport [BitComet端口] -j ACCEPT
ip6tables -A FORWARD -p tcp --dport [BitComet端口] -j ACCEPT
ip6tables -A FORWARD -p udp --dport [BitComet端口] -j ACCEPT