r0 = socket$inet6_udp(0xa, 0x2, 0x0)
r1 = dup(r0)
connect$inet6(r1, &(0x7f00000000c0)={0xa, 0x0, 0x0, @remote, 0x2}, 0x1c)
r2 = socket$nl_audit(0x10, 0x3, 0x9)
ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000340)={'sit0\x00', <r3=>0x0})
sendmmsg$inet6(r1, &(0x7f0000006480)=[{{&(0x7f0000000000)={0xa, 0x4e24, 0x0, @remote}, 0x1c, 0x0, 0x0, &(0x7f0000000480)=[@pktinfo={{0x24, 0x29, 0x32, {@remote, r3}}}], 0x28}}], 0x1, 0x0)