r0 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$inet6(r0, &(0x7f0000000540)={0xa, 0x0, 0x0, @dev, 0x2}, 0x1c)
connect$inet6(r0, &(0x7f0000000280)={0xa, 0x4e20, 0x0, @ipv4={'\x00', '\xff\xff', @local}}, 0x1c)
sendmmsg$inet(0xffffffffffffffff, &(0x7f0000005640)=[{{&(0x7f0000000040)={0x2, 0x0, @remote}, 0x10, 0x0}}], 0x1, 0x0)
r1 = socket$inet6_tcp(0xa, 0x1, 0x0)
r2 = socket$packet(0x11, 0x0, 0x300)
ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000140)={'sit0\x00', <r3=>0x0})
ioctl$sock_inet6_SIOCADDRT(r1, 0x890b, &(0x7f0000000000)={@ipv4={'\x00', '\xff\xff', @remote}, @private1, @ipv4={'\x00', '\xff\xff', @loopback=0x7f001400}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x400036, r3})
sendmmsg$inet6(r0, &(0x7f0000004d00), 0x2f, 0x0)