-from socket import AF_INET6
+from socket import AF_INET6, inet_ntop, inet_pton
from scapy.layers.dhcp6 import DHCP6_Advertise, DHCP6OptClientId, \
DHCP6OptStatusCode, DHCP6OptPref, DHCP6OptIA_PD, DHCP6OptIAPrefix, \
DHCP6OptIAAddress
from scapy.layers.inet6 import IPv6, Ether, UDP
from scapy.utils6 import in6_mactoifaceid
-from scapy.utils import inet_ntop, inet_pton
from framework import VppTestCase
from vpp_papi import VppEnum