-@@ -138,6 +138,7 @@ bind_layers(IP, ESP, proto=socket.IPPROTO_ESP)
+@@ -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, \
+@@ -138,6 +139,7 @@ bind_layers(IP, ESP, proto=socket.IPPROTO_ESP)