Rename IPPrefix -> CDPPrefix

Author: gpotter2

scapy/contrib/cdp.py

@@ -250,19 +250,22 @@ class CDPMsgIPGateway(CDPMsgGeneric):
                    IPField("defaultgw", "192.168.0.1")]
 
 
-class IPPrefix(CDPMsgGeneric):
+class CDPIPPrefix(Packet):
     fields_desc = [
         IPField("prefix", "192.168.0.1"),
         ByteField("plen", 24),
     ]
 
+    def guess_payload_class(self, p):
+        return conf.padding_layer
+
 
 class CDPMsgIPPrefix(CDPMsgGeneric):
     name = "IP Prefix"
     type = 0x0007
     fields_desc = [XShortEnumField("type", 0x0007, _cdp_tlv_types),
                    ShortField("len", 9),
-                   PacketListField("prefixes", [], IPPrefix,
+                   PacketListField("prefixes", [], CDPIPPrefix,
                                    length_from=lambda p: p.len - 4)]