Python ipaddress.IPv6Network() Examples

def __init__(self, value):
        if not isinstance(
            value,
            (
                ipaddress.IPv4Address,
                ipaddress.IPv6Address,
                ipaddress.IPv4Network,
                ipaddress.IPv6Network
            )
        ):
            raise TypeError(
                "value must be an instance of ipaddress.IPv4Address, "
                "ipaddress.IPv6Address, ipaddress.IPv4Network, or "
                "ipaddress.IPv6Network"
            )

        self._value = value 

def __init__(self,
                 interface="deckard",
                 ip4_range=IPv4Network('127.127.0.0/16'),
                 ip6_range=IPv6Network('fd00:dec::/32')):
        self.ip4_internal_range = ip4_range
        self.ip6_internal_range = ip6_range
        self.ip4_iterator = (host for host in ip4_range)
        self.ip6_iterator = (host for host in ip6_range)
        self.added_addresses = set()
        self.interface = interface

        self._ip = IPRoute()
        try:
            self._dev = self._setup_interface()
        except NetlinkError:
            raise RuntimeError(f"Couldn't set interface `{self.interface}` up.") 

def __init__(self, value):
        if not isinstance(
            value,
            (
                ipaddress.IPv4Address,
                ipaddress.IPv6Address,
                ipaddress.IPv4Network,
                ipaddress.IPv6Network
            )
        ):
            raise TypeError(
                "value must be an instance of ipaddress.IPv4Address, "
                "ipaddress.IPv6Address, ipaddress.IPv4Network, or "
                "ipaddress.IPv6Network"
            )

        self._value = value 

def __init__(self, value):
        if not isinstance(
            value,
            (
                ipaddress.IPv4Address,
                ipaddress.IPv6Address,
                ipaddress.IPv4Network,
                ipaddress.IPv6Network
            )
        ):
            raise TypeError(
                "value must be an instance of ipaddress.IPv4Address, "
                "ipaddress.IPv6Address, ipaddress.IPv4Network, or "
                "ipaddress.IPv6Network"
            )

        self._value = value 

def __init__(self, value):
        if not isinstance(
            value,
            (
                ipaddress.IPv4Address,
                ipaddress.IPv6Address,
                ipaddress.IPv4Network,
                ipaddress.IPv6Network
            )
        ):
            raise TypeError(
                "value must be an instance of ipaddress.IPv4Address, "
                "ipaddress.IPv6Address, ipaddress.IPv4Network, or "
                "ipaddress.IPv6Network"
            )

        self._value = value 

def testGetSubnets3(self):
        subnets = [str(x) for x in self.ipv4_network.subnets(8)]
        self.assertEqual(subnets[:3],
            ['1.2.3.0/32', '1.2.3.1/32', '1.2.3.2/32'])
        self.assertEqual(subnets[-3:],
            ['1.2.3.253/32', '1.2.3.254/32', '1.2.3.255/32'])
        self.assertEqual(len(subnets), 256)

        ipv6_network = ipaddress.IPv6Network('2001:658:22a:cafe::/120')
        subnets = [str(x) for x in ipv6_network.subnets(8)]
        self.assertEqual(subnets[:3],
            ['2001:658:22a:cafe::/128',
             '2001:658:22a:cafe::1/128',
             '2001:658:22a:cafe::2/128'])
        self.assertEqual(subnets[-3:],
            ['2001:658:22a:cafe::fd/128',
             '2001:658:22a:cafe::fe/128',
             '2001:658:22a:cafe::ff/128'])
        self.assertEqual(len(subnets), 256) 

def __init__(self, value):
        if not isinstance(
            value,
            (
                ipaddress.IPv4Address,
                ipaddress.IPv6Address,
                ipaddress.IPv4Network,
                ipaddress.IPv6Network
            )
        ):
            raise TypeError(
                "value must be an instance of ipaddress.IPv4Address, "
                "ipaddress.IPv6Address, ipaddress.IPv4Network, or "
                "ipaddress.IPv6Network"
            )

        self._value = value 

def _str_conf(self, conf_v):
        if isinstance(conf_v, (bool, str, int)):
            return conf_v
        if isinstance(conf_v, (
                ipaddress.IPv4Address, ipaddress.IPv4Interface, ipaddress.IPv4Network,
                ipaddress.IPv6Address, ipaddress.IPv6Interface, ipaddress.IPv6Network)):
            return str(conf_v)
        if isinstance(conf_v, (dict, OrderedDict)):
            return {str(i): self._str_conf(j) for i, j in conf_v.items() if j is not None}
        if isinstance(conf_v, (list, tuple, frozenset)):
            return tuple([self._str_conf(i) for i in conf_v if i is not None])
        if isinstance(conf_v, Conf):
            for i in ('name', '_id'):
                if hasattr(conf_v, i):
                    return getattr(conf_v, i)
        return None 

def __init__(self, value):
        if not isinstance(
            value,
            (
                ipaddress.IPv4Address,
                ipaddress.IPv6Address,
                ipaddress.IPv4Network,
                ipaddress.IPv6Network
            )
        ):
            raise TypeError(
                "value must be an instance of ipaddress.IPv4Address, "
                "ipaddress.IPv6Address, ipaddress.IPv4Network, or "
                "ipaddress.IPv6Network"
            )

        self._value = value 

def prehandle_roa(asn_table: dict, args):
    roa = route_to_roa(asn_table)
    max_prefixlen = IPv4Network(0).max_prefixlen
    roa4 = filter(lambda item: isinstance(item["prefix"], IPv4Network), roa)
    roa6 = filter(lambda item: isinstance(item["prefix"], IPv6Network), roa)
    if args.ipv4:
        roa6 = []
    elif args.ipv6:
        roa4 = []
    roa4 = [
        r
        for r in roa4
        if r["prefix"].prefixlen <= args.max or r["prefix"].prefixlen == max_prefixlen
    ]
    roa6 = [r for r in roa6 if r["prefix"].prefixlen <= args.max6]
    for r in roa4:
        r["maxLength"] = args.max
        if r["prefix"].prefixlen == max_prefixlen:
            r["maxLength"] = max_prefixlen
    for r in roa6:
        r["maxLength"] = args.max6
    for r in (*roa4, *roa6):
        r["prefix"] = r["prefix"].with_prefixlen
    return roa4, roa6 

def insert_network(self, prefix, data_offset, strict = True):
        self.entries_count += 1
        ipnet = ipaddress.ip_network(prefix, strict=False)

        if ipnet.version == 6 and self.ip_version != 6:
            raise Exception('Encoder: insert_network: cannot add IPv6 address in IPv4 table')

        if ipnet.version == 4 and self.ip_version == 6:
            base4in6 = ipaddress.IPv6Address(u'::ffff:0:0')
            v4in6addr = ipaddress.IPv6Address(int(ipnet.network_address)+int(base4in6))

            # Maxmind DBs skips the first 96 bits (do not include the 0xffff)
            if self.compat:
                v4in6addr = ipaddress.IPv6Address(int(ipnet.network_address))

            v4in6addr_plen = ipnet.prefixlen + 96
            ipnet = ipaddress.IPv6Network(u'{}/{}'.format(str(v4in6addr), v4in6addr_plen), strict=False)

        #print(ipnet)
        self.add_to_trie(ipnet, data_offset, strict=strict) 

def generate_pubkey_ipv6(network: Config.NetworkType, node: Config.NodeType) -> Optional[str]:
    if 'AddressPoolIPv6' not in network:
        return None
    address_pool = ipaddress.IPv6Network(network['AddressPoolIPv6'], strict=False)

    if 'PrivateKey' not in node:
        return None
    secret_base64: str = node['PrivateKey']
    secret: bytes = binascii.a2b_base64(secret_base64)
    if len(secret) != 32:
        return None

    host = ipaddress.IPv6Address(pubkey(secret)[-16:])
    ipv6 = ipaddress.IPv6Address(int(address_pool.network_address) | (int(host) & int(address_pool.hostmask)))

    return ipv6.compressed + '/' + str(address_pool.prefixlen) 

def __init__(self, value):
        if not isinstance(
            value,
            (
                ipaddress.IPv4Address,
                ipaddress.IPv6Address,
                ipaddress.IPv4Network,
                ipaddress.IPv6Network
            )
        ):
            raise TypeError(
                "value must be an instance of ipaddress.IPv4Address, "
                "ipaddress.IPv6Address, ipaddress.IPv4Network, or "
                "ipaddress.IPv6Network"
            )

        self._value = value 

def supernet(self, prefixlen_diff=1):
    """Override ipaddress.IPv6Network supernet so we can maintain comments.

    See ipaddress.IPv6Network.Supernet for complete documentation.
    Args:
      prefixlen_diff: Prefix length difference.

    Returns:
      An IPv4 object

    Raises:
      PrefixlenDiffInvalidError: Raised when prefixlen - prefixlen_diff results
        in a negative number.
    """
    if self.prefixlen == 0:
      return self
    if self.prefixlen - prefixlen_diff < 0:
      raise PrefixlenDiffInvalidError(
          'current prefixlen is %d, cannot have a prefixlen_diff of %d' % (
              self.prefixlen, prefixlen_diff))
    ret_addr = IPv6(ipaddress.IPv6Network.supernet(self, prefixlen_diff),
                    comment=self.text, token=self.token)
    return ret_addr

  # Backwards compatibility name from v1. 

def __init__(self, value):
        if not isinstance(
            value,
            (
                ipaddress.IPv4Address,
                ipaddress.IPv6Address,
                ipaddress.IPv4Network,
                ipaddress.IPv6Network
            )
        ):
            raise TypeError(
                "value must be an instance of ipaddress.IPv4Address, "
                "ipaddress.IPv6Address, ipaddress.IPv4Network, or "
                "ipaddress.IPv6Network"
            )

        self._value = value 

def network(self):
        """Returns an IPv6Network object, which represents this network.
        """
        if sys.version_info[0] < 3:
            return self.network_object.network
        else:
            ## The ipaddress module returns an "IPAddress" object in Python3...
            return IPv6Network("{0}".format(self.network_object.compressed)) 

def _GetIpString(self, addr):
    """Formats the address object for printing in the ACL.

    Args:
      addr: str or ipaddr, address
    Returns:
      An address string suitable for the ACL.
    """
    if isinstance(addr, nacaddr.IPv4) or isinstance(addr,
                                                    ipaddress.IPv4Network):
      addr = cast(self.IPV4_ADDRESS, addr)
      if addr.num_addresses > 1:
        if self.platform == 'arista':
          return addr.with_prefixlen
        return '%s %s' % (addr.network_address, addr.hostmask)
      return 'host %s' % (addr.network_address)
    if isinstance(addr, nacaddr.IPv6) or isinstance(addr,
                                                    ipaddress.IPv6Network):
      addr = cast(self.IPV6_ADDRESS, addr)
      if addr.num_addresses > 1:
        return addr.with_prefixlen
      return 'host %s' % (addr.network_address)
    # DSMO enabled
    if isinstance(addr, summarizer.DSMNet):
      return '%s %s' % summarizer.ToDottedQuad(addr, negate=True)
    return addr 

def _match_ip_masked(ipa):
    if isinstance(ipa, (ipaddress.IPv4Network, ipaddress.IPv6Network)):
        return (str(ipa.network_address), str(ipa.netmask))
    return (str(ipa.ip), str(ipa.netmask)) 

def _validate_ip_name(self, tree):
        if any(isinstance(name, IPAddress) and not isinstance(
            name.value, (ipaddress.IPv4Network, ipaddress.IPv6Network)
        ) for name in tree):
            raise TypeError(
                "IPAddress name constraints must be an IPv4Network or"
                " IPv6Network object"
            ) 

def to_net(data, *args):
    # for py2 support need to convert data to unicode:
    if _ttp_["python_major_version"] is 2:
        ipaddr_data = unicode(data)
    elif _ttp_["python_major_version"] is 3:
        ipaddr_data = data
    if "ipv4" in args:
        return ipaddress.IPv4Network(ipaddr_data), None
    elif "ipv6" in args:
        return ipaddress.IPv6Network(ipaddr_data), None
    else:
        return ipaddress.ip_network(ipaddr_data), None 

def _validate_ip_name(self, tree):
        if any(isinstance(name, IPAddress) and not isinstance(
            name.value, (ipaddress.IPv4Network, ipaddress.IPv6Network)
        ) for name in tree):
            raise TypeError(
                "IPAddress name constraints must be an IPv4Network or"
                " IPv6Network object"
            ) 

def prefixlen(self, arg):
        """prefixlen setter method"""
        self.network_object = IPv6Network(
            "{0}/{1}".format(str(self.ip_object), arg), strict=False
        ) 

def __init__(self, arg="::1/128", strict=False):

        # arg= _RGX_IPV6ADDR_NETMASK.sub(r'\1/\2', arg) # mangle IOS: 'addr mask'
        self.arg = arg
        self.dna = "IPv6Obj"

        try:
            mm = _RGX_IPV6ADDR.search(arg)
        except TypeError:
            if getattr(arg, "dna", "") == "IPv6Obj":
                ip_str = "{0}/{1}".format(str(arg.ip_object), arg.prefixlen)
                self.network_object = IPv6Network(ip_str, strict=False)
                self.ip_object = IPv6Address(str(arg.ip_object))
                return None
            elif isinstance(arg, IPv6Network):
                self.network_object = arg
                self.ip_object = IPv6Address(str(arg).split("/")[0])
                return None
            elif isinstance(arg, IPv6Address):
                self.network_object = IPv6Network(str(arg) + "/128")
                self.ip_object = IPv6Address(str(arg).split("/")[0])
                return None
            elif isinstance(arg, int):
                self.ip_object = IPv6Address(arg)
                self.network_object = IPv6Network(
                    str(self.ip_object) + "/128", strict=False
                )
                return None
            else:
                raise ValueError(
                    "IPv6Obj doesn't understand how to parse {0}".format(arg)
                )

        assert not (mm is None), "IPv6Obj couldn't parse {0}".format(arg)
        self.network_object = IPv6Network(arg, strict=strict)
        self.ip_object = IPv6Address(mm.group(1))

    # 'address_exclude', 'compare_networks', 'hostmask', 'ipv4_mapped', 'iter_subnets', 'iterhosts', 'masked', 'max_prefixlen', 'netmask', 'network', 'numhosts', 'overlaps', 'prefixlen', 'sixtofour', 'subnet', 'supernet', 'teredo', 'with_hostmask', 'with_netmask', 'with_prefixlen' 

def is_reserved(self):
        """Returns a boolean for whether this is a reserved address"""
        return self.network_object.is_reserved


## Emulate the old behavior of ipaddr.IPv6Network in Python2, which can use
##    IPv6Network with a host address.  Google removed that in Python3's
##    ipaddress.py module 

def testForceVersion(self):
        self.assertEqual(ipaddress.ip_network(1).version, 4)
        self.assertEqual(ipaddress.IPv6Network(1).version, 6) 

def testExplodeShortHandIpStr(self):
        addr1 = ipaddress.IPv6Interface('2001::1')
        addr2 = ipaddress.IPv6Address('2001:0:5ef5:79fd:0:59d:a0e5:ba1')
        addr3 = ipaddress.IPv6Network('2001::/96')
        addr4 = ipaddress.IPv4Address('192.168.178.1')
        self.assertEqual('2001:0000:0000:0000:0000:0000:0000:0001/128',
                         addr1.exploded)
        self.assertEqual('0000:0000:0000:0000:0000:0000:0000:0001/128',
                         ipaddress.IPv6Interface('::1/128').exploded)
        # issue 77
        self.assertEqual('2001:0000:5ef5:79fd:0000:059d:a0e5:0ba1',
                         addr2.exploded)
        self.assertEqual('2001:0000:0000:0000:0000:0000:0000:0000/96',
                         addr3.exploded)
        self.assertEqual('192.168.178.1', addr4.exploded) 

def testGetSubnetForSingle128(self):
        ip = ipaddress.IPv6Network('::1/128')
        subnets1 = [str(x) for x in ip.subnets()]
        subnets2 = [str(x) for x in ip.subnets(2)]
        self.assertEqual(subnets1, ['::1/128'])
        self.assertEqual(subnets1, subnets2) 

def testGetSupernet(self):
        self.assertEqual(self.ipv4_network.supernet().prefixlen, 23)
        self.assertEqual(str(self.ipv4_network.supernet().network_address),
                         '1.2.2.0')
        self.assertEqual(
            ipaddress.IPv4Interface('0.0.0.0/0').network.supernet(),
            ipaddress.IPv4Network('0.0.0.0/0'))

        self.assertEqual(self.ipv6_network.supernet().prefixlen, 63)
        self.assertEqual(str(self.ipv6_network.supernet().network_address),
                         '2001:658:22a:cafe::')
        self.assertEqual(ipaddress.IPv6Interface('::0/0').network.supernet(),
                         ipaddress.IPv6Network('::0/0')) 

def setUp(self):
        self.ipv4_address = ipaddress.IPv4Address('1.2.3.4')
        self.ipv4_interface = ipaddress.IPv4Interface('1.2.3.4/24')
        self.ipv4_network = ipaddress.IPv4Network('1.2.3.0/24')
        #self.ipv4_hostmask = ipaddress.IPv4Interface('10.0.0.1/0.255.255.255')
        self.ipv6_address = ipaddress.IPv6Interface(
            '2001:658:22a:cafe:200:0:0:1')
        self.ipv6_interface = ipaddress.IPv6Interface(
            '2001:658:22a:cafe:200:0:0:1/64')
        self.ipv6_network = ipaddress.IPv6Network('2001:658:22a:cafe::/64') 

def _validate_ip_name(self, tree):
        if any(isinstance(name, IPAddress) and not isinstance(
            name.value, (ipaddress.IPv4Network, ipaddress.IPv6Network)
        ) for name in tree):
            raise TypeError(
                "IPAddress name constraints must be an IPv4Network or"
                " IPv6Network object"
            )