r0 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$inet6(r0, &(0x7f0000000540)={0xa, 0x0, 0x0, @dev, 0x2}, 0x1c)
r1 = socket$packet(0x11, 0x2, 0x300)
ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', <r2=>0x0})
setsockopt$inet6_IPV6_PKTINFO(r0, 0x29, 0x32, &(0x7f0000000700)={@mcast2, r2}, 0x14)