fixing dhcp serialization problem

Change-Id: Ie049f9c1e464ca9a2b651df74f7b979628d0d745
diff --git a/utils/misc/src/main/java/org/onlab/packet/IGMP.java b/utils/misc/src/main/java/org/onlab/packet/IGMP.java
index 9d5535d..e7abbd6 100644
--- a/utils/misc/src/main/java/org/onlab/packet/IGMP.java
+++ b/utils/misc/src/main/java/org/onlab/packet/IGMP.java
@@ -271,7 +271,8 @@
                     break;
 
                 default:
-                    msg = "IGMP message type: " + igmp.igmpType + " is not recodnized";
+                    msg = "IGMP message type: " + igmp.igmpType + " is not recognized";
+                    igmp.unsupportTypeData = bb.array();
                     igmp.log.debug(msg);
                     break;
             }