检查两个CIDR地址是否相交？ [英] Check if two CIDR addresses intersect?

问题描述

给出两个CIDR地址，例如192.168.2.0/14和192.168.2.0/32

Given two CIDR addresses say 192.168.2.0/14 and 192.168.2.0/32

如何检查 python2.6中是否有两个IP地址重叠？ ？

How do I check if two ip addresses overlap in "python2.6"??

我通过netaddr，它可以检查
192.168.2.0是否在CIDR地址192.168.2.0/14中，

I have gone through netaddr and it allows to check if 192.168.2.0 is in CIDR address 192.168.2.0/14 by

from netaddr import IPNetwork, IPAddress
bool = IPAddress("192.168.2.0") in IPNetwork("192.168.2.0/14"):

但是如何检查两个CIDR地址？

But how to check for two CIDR address??

我找到了参考:: :: 如何检查ip是否在python网络中

I found a reference :: How can I check if an ip is in a network in python

推荐答案

使用 ipaddr ：

>>> import ipaddr
>>> n1 = ipaddr.IPNetwork('192.168.1.0/24')
>>> n2 = ipaddr.IPNetwork('192.168.2.0/24')
>>> n3 = ipaddr.IPNetwork('192.168.2.0/25')
>>> n1.overlaps(n2)
False
>>> n1.overlaps(n3)
False
>>> n2.overlaps(n3)
True
>>> n2.overlaps(n1)
False

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