Python で ipaddress 生成

• ipaddress --- IPv4/IPv6 操作ライブラリ
• ipaddressモジュールの紹介

create_ipaddrss.py

import ipaddress
import itertools as it
import re

class BaseIPv6Network(ipaddress.IPv6Network):

    def __add__(self, offset):
        new_base_addr = int(self.network_address) + offset
        return self.__class__((new_base_addr, self.prefixlen))

    def size(self):
        # Return network size.
        return 1 << (self.max_prefixlen - self.prefixlen)

def increment_ipv6addr(ipv6net, self_addr, ipv6_range):
    ipv6_list = []
    network = BaseIPv6Network(ipv6net)
    network_addrs = (network + i * network.size() for i in it.count())

    for _ in range(ipv6_range):
        ipv6_net = str(next(network_addrs))
        ipv6_mask = re.search("/\d+",ipv6_net ).group()
        last_addr = str(self_addr) + ipv6_mask
        ipv6addr = ipv6_net.replace(ipv6_mask,last_addr)
        ipv6_list.append(ipv6addr)

    return ipv6_list

# 確認用
# test = increment_ipv6addr("192:168:1:1::/64",1,10)
# print(test)


def create_ipv4addres(ipv4addr, mask, ipv4_range, ipv4_step):

    ipv4_list = []
    ipv4addr = ipaddress.ip_address(str(ipv4addr))
    mask = str(mask)

    for i in range(ipv4_range):
        ipv4 = f"{ipv4addr} " + mask
        ipv4_list.append(ipv4)
        ipv4addr += ipv4_step

    return ipv4_list

# 確認用
# ipv4list = create_ipv4addres("192.168.1.1", "255.255.255.252", 10, 4)
# print(ipv4list)