Python - ip< - >子网匹配? [英] Python - ip <-> subnet match?

查看:125
本文介绍了Python - ip< - >子网匹配?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述


可能重复:

如何检查ip是否在python中的网络中


在python中将子网与ip地址匹配的简单方法是什么,如果ip地址在子网中,我可以选择它吗? / p>

提前致谢。

解决方案

在Python 3.3+中,你可以使用 ipaddress 模块:

 >>> import ipaddress 
>>> ipaddress.ip_address('192.0.43.10')in ipaddress.ip_network('192.0.0.0/16')
True

如果您的Python安装时间早于3.3,则可以使用此backport






如果您想以这种方式评估批次的IP地址,那么'' ll可能想要预先计算网络掩码,比如

  n = ipaddress.ip_network('192.0.0.0/16')
netw = int(n.network_address)
mask = int(n.netmask)

然后,对于每个地址,使用

  a = int(ipaddress.ip_address('192.0.43.10)之一计算二进制表示'))
a = struct.unpack('!I',socket.inet_pton(socket.AF_INET,'192.0.43.10'))[0]
a = struct.unpack('!I',socket .inet_aton('192.0.43.10'))[0] #IPv4只

最后,你可以简单地说检查:

  in_network =(a& mask)== netw 


Possible Duplicate:
How can I check if an ip is in a network in python

What is the easy way to match subnet to an ip address in python, so that if the ip address is in the subnet I can choose it?

Thanks in advance.

解决方案

In Python 3.3+, you can use ipaddress module:

>>> import ipaddress
>>> ipaddress.ip_address('192.0.43.10') in ipaddress.ip_network('192.0.0.0/16')
True

If your Python installation is older than 3.3, you can use this backport.


If you want to evaluate a lot of IP addresses this way, you'll probably want to calculate the netmask upfront, like

n = ipaddress.ip_network('192.0.0.0/16')
netw = int(n.network_address)
mask = int(n.netmask)

Then, for each address, calculate the binary representation with one of

a = int(ipaddress.ip_address('192.0.43.10'))
a = struct.unpack('!I', socket.inet_pton(socket.AF_INET, '192.0.43.10'))[0]
a = struct.unpack('!I', socket.inet_aton('192.0.43.10'))[0]  # IPv4 only

Finally, you can simply check:

in_network = (a & mask) == netw

这篇关于Python - ip< - >子网匹配?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

查看全文
登录 关闭
扫码关注1秒登录
发送“验证码”获取 | 15天全站免登陆