// チェックサム算出 uint32_t sum = 0; for(size_t i=0; i<size; i+=2) { sum += (buffer[i] << 8) | buffer[i+1]; } if( size & 1 ) sum += (data[size-1] << 8); sum = (sum >> 16) + (sum & 0xffff); sum = (sum >> 16) + (sum & 0xffff); checksum = htons(~sum);// チェックサム確認 uint32_t sum = 0; for(size_t i=0; i</size;>

C:\Program Files>ping 192.168.1.16 Pinging 192.168.1.16 with 32 bytes of data: Reply from 192.168.1.16: bytes=32 time=1ms TTL=128 Reply from 192.168.1.16: bytes=32 time<10ms TTL=128 Reply from 192.168.1.16: bytes=32 time<10ms TTL=128 Reply…