+@@ -56,6 +56,7 @@ from scapy.fields import ByteEnumField, ByteField, IntField, PacketField, \
+ ShortField, StrField, XIntField, XStrField, XStrLenField
+ from scapy.packet import Packet, bind_layers, Raw
+ from scapy.layers.inet import IP, UDP
++from scapy.contrib.mpls import MPLS
+ import scapy.modules.six as six
+ from scapy.modules.six.moves import range
+ from scapy.layers.inet6 import IPv6, IPv6ExtHdrHopByHop, IPv6ExtHdrDestOpt, \
+@@ -359,11 +360,8 @@ class CryptAlgo(object):