| import socket, struct |
|
|
| def icmp_checksum(data): |
| s = 0 |
| for i in range(0, len(data), 2): |
| w = (data[i] << 8) + (data[i+1] if i+1 < len(data) else 0) |
| s += w |
| s = (s >> 16) + (s & 0xffff) |
| s += (s >> 16) |
| return ~s & 0xffff |
|
|
| def icmp_ping(ip, timeout=0.3): |
| try: |
| sock = socket.socket(socket.AF_INET, socket.SOCK_RAW, socket.IPPROTO_ICMP) |
| sock.settimeout(timeout) |
| hdr = struct.pack("bbHHh", 8, 0, 0, 1, 1) |
| cs = icmp_checksum(hdr + b"X") |
| hdr = struct.pack("bbHHh", 8, 0, cs, 1, 1) |
| sock.sendto(hdr + b"X", (ip, 1)) |
| sock.recv(1024) |
| return True |
| except: return False |
| finally: |
| try: sock.close() |
| except: pass |
|
|
| |
| live = [] |
| for i in range(1, 255): |
| ip = f"10.112.184.{i}" |
| if icmp_ping(ip): live.append(ip) |
|
|
| print("LIVE:", live) |
|
|
