r0 = socket$nl_route(0x10, 0x3, 0x0)
sendmsg$netlink(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f00000006c0)=[{&(0x7f00000003c0)={0x38, 0x10, 0x1, 0x0, 0x0, "", [@typed={0xc, 0x0, 0x0, 0x0, @u64=0x2}, @nested={0x4}, @nested={0x18, 0x16, 0x0, 0x1, [@typed={0x14, 0x0, 0x0, 0x0, @ipv6=@ipv4={'\x00', '\xff\xff', @multicast1}}]}]}, 0x38}], 0x1}, 0x0)