:rtype: str
"""
ipv6_net = ipaddress.ip_network(unicode(ipv6_pfx))
ipv4_net = ipaddress.ip_network(unicode(ipv4_pfx))
ipv4_host = ipaddress.ip_address(unicode(ipv4_dst))
:rtype: str
"""
ipv6_net = ipaddress.ip_network(unicode(ipv6_pfx))
ipv4_net = ipaddress.ip_network(unicode(ipv4_pfx))
ipv4_host = ipaddress.ip_address(unicode(ipv4_dst))