r0 = socket$inet6_udp(0xa, 0x2, 0x0)
setsockopt$inet6_udp_int(r0, 0x11, 0x67, &(0x7f00000000c0)=0x1000, 0x4)
sendmmsg$inet6(r0, &(0x7f00000019c0)=[{{&(0x7f00000004c0)={0x2, 0x4e20, 0x0, @dev}, 0x1c, 0x0}}], 0x1, 0x0)