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FreeBSD Disable IPv6
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You do not want ipv6 enabled unless you honestly know you need it for sure.

IPv6 is enabled by default and this is how to disable it.


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/etc/rc.conf
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ipv6_enable="NO"
ipv6_activate_all_interfaces="NO"
ipv6_network_interfaces="none"
ip6addrctl_enable="NO"
ifconfig_em0_ipv6="NONE"


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/etc/sysctl.conf
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net.inet6.ip6.accept_rtadv=0
net.inet6.ip6.auto_linklocal=0
net.inet6.ip6.dad_count=0


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End
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