def __init__(self, version=4, default=None):
Field.__init__(self)
if version not in (4, 6):
raise ValueError('Invalid IP protocol version "%s"' % version)
self.byte_count = 4 if version == 4 else 16
self.cls_address = IPv4Address if version == 4 else IPv6Address
self.default = self.cls_address(default if default is not None else ('0.0.0.0' if version == 4 else '::'))
def __init__(self, version=48, default="00:00:00:00:00:00"):
Field.__init__(self)
self.default = default
self.version = version
