计算主机地址

import ipaddress

def calculate_host_addresses(ip, subnet_mask):
    network = ipaddress.IPv4Network(f"{ip}/{subnet_mask}", strict=False)
    hosts = list(network.hosts())
    return [str(host) for host in hosts]

# 示例
ip = "192.168.1.0"
subnet_mask = "255.255.255.0"
hosts = calculate_host_addresses(ip, subnet_mask)
print(hosts)

import socket

def nat_translation(private_ip, public_ip, port):
    # 创建一个TCP/IP套接字
    sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    sock.bind((public_ip, port))
    sock.listen(1)
    
    while True:
        conn, addr = sock.accept()
        print(f"Connection from {addr}")
        data = conn.recv(1024)
        if data:
            print(f"Received data: {data.decode()}")
            conn.sendall(data)
        conn.close()

# 示例
private_ip = "192.168.1.100"
public_ip = "203.0.113.1"
port = 8080
nat_translation(private_ip, public_ip, port)