r0 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$inet6(r0, &(0x7f00000001c0)={0xa, 0x0, 0x0, @mcast2, 0x3}, 0x1c)
sendmsg$inet6(r0, &(0x7f0000000000)={0x0, 0x0, 0x0, 0x0, &(0x7f0000000040)=[@flowinfo={{0x14, 0x29, 0xb, 0xffffffff}}, @flowinfo={{0x14}}], 0x30}, 0x0)