sysctl -a | grep ipv6 | grep disable
net.ipv6.conf.enahisic2i0.disable_ipv6 = 0
net.ipv6.conf.enahisic2i0.disable_policy = 0
net.ipv6.conf.enahisic2i1.disable_ipv6 = 0
net.ipv6.conf.enahisic2i1.disable_policy = 0
net.ipv6.conf.enahisic2i2.disable_ipv6 = 0
net.ipv6.conf.enahisic2i2.disable_policy = 0
net.ipv6.conf.enahisic2i3.disable_ipv6 = 0
net.ipv6.conf.enahisic2i3.disable_policy = 0
net.ipv6.conf.enahisic2i3/900.disable_ipv6 = 1
net.ipv6.conf.enahisic2i3/900.disable_policy = 0