检查ip地址是否属于python中的A,B和C类 [英] check if ip address belongs to a Class A, B and C in python
问题描述
如何在python中确定IP地址的类别.我正在使用python的ipaddress模块. 以下是类定义
How can determine class of IP address in python. I am working with ipaddress module of python. Following are class definitions
Class Private Networks Subnet Mask Address Range
A 10.0.0.0 255.0.0.0 10.0.0.0 - 10.255.255.255
B 172.16.0.0 - 172.31.0.0 255.240.0.0 172.16.0.0 - 172.31.255.255
C 192.168.0.0 255.255.0.0 192.168.0.0 - 192.168.255.255
给出IP,如何检查它是否属于A,B或C类?
Given a IP how can I check if it belongs to Class A, B or C
推荐答案
IPv4
使用ipaddress.IPv4Address
和ipaddress.IPv4Network
类型.
from ipaddress import IPv4Address, IPv4Network
classA = IPv4Network(("10.0.0.0", "255.0.0.0")) # or IPv4Network("10.0.0.0/8")
classB = IPv4Network(("172.16.0.0", "255.240.0.0")) # or IPv4Network("172.16.0.0/12")
classC = IPv4Network(("192.168.0.0", "255.255.0.0")) # or IPv4Network("192.168.0.0/16")
我给了您元组形式,因为您具有网络地址和掩码,但是如果您更喜欢/X(CIDR标准)后缀,它也可以接受.实际上,还有其他一些方法.
I gave you the tuple form as you have the network address and mask but if you prefer the /X (CIDR standard) suffix it also accepts it. There are actually some additional ways.
要使用它,您只需检查某个IPv4Address
是否为in
IPv4Network
,就像您正在检查元素一样,可以在list
中找到
To use it you will just check if a certain IPv4Address
is in
the IPv4Network
as if you were checking in an element is found inside a list
:
ip1 = IPv4Address("10.0.2.8")
ip2 = IPv4Address("172.18.76.25")
ip3 = IPv4Address("192.168.45.62")
ip1 in classA # True
ip2 in classA # False
ip3 in classA # False
ip1 in classB # False
ip2 in classB # True
ip3 in classB # False
ip1 in classC # False
ip2 in classC # False
ip3 in classC # True
IPv6
改用ipaddress.IPv6Address
和ipaddress.IPv6Network
类型,并在创建对象时更正IPv6 ip字符串.
IPv6
Use ipaddress.IPv6Address
and ipaddress.IPv6Network
types instead and correct IPv6 ip strings when creating the objects.
如果需要同时支持IPv4和IPv6,则可以使用ipaddress.ip_address
和ipaddress.ip_network
便利工厂功能,并且该模块将根据字符串格式创建适当的IPv4或IPv6类.
If both supporting IPv4 and IPv6 is desired, ipaddress.ip_address
and ipaddress.ip_network
convenience factory functions can be used, and the module will create the appropiate IPv4 or IPv6 class depending on the string format.
来源: https://docs.python.org/3/library/ipaddress .html
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