--- a/src/common/packet.cc	Sat Jun 21 08:55:04 2008 -0700
+++ b/src/common/packet.cc	Sat Jun 21 10:30:47 2008 -0700
@@ -904,6 +904,18 @@
     tmp->AddTag (ATestTag<20> ());
     CHECK (tmp, 0, E (20, 0, 0));
   }
+  {
+    Ptr<Packet> tmp = Create<Packet> (1000);
+    tmp->AddTag (ATestTag<20> ());
+    CHECK (tmp, 1, E (20, 0, 1000));
+    tmp->RemoveAtStart (1000);
+    CHECK (tmp, 0,  E (0,0,0));
+    Ptr<Packet> a = Create<Packet> (10);
+    a->AddTag (ATestTag<10> ());
+    CHECK (a, 1, E (10, 0, 10));
+    tmp->AddAtEnd (a);
+    CHECK (tmp, 1, E (10, 0, 10));
+  }
   
 
   return result;

--- a/src/common/tag-list.cc	Sat Jun 21 08:55:04 2008 -0700
+++ b/src/common/tag-list.cc	Sat Jun 21 10:30:47 2008 -0700
@@ -281,7 +281,7 @@
       item.start += adjustment;
       item.end += adjustment;
 
-      if (item.start > appendOffset)
+      if (item.start >= appendOffset)
 	{
 	  continue;
 	}
@@ -315,7 +315,7 @@
       item.start += adjustment;
       item.end += adjustment;
 
-      if (item.end < prependOffset)
+      if (item.end <= prependOffset)
 	{
 	  continue;
 	}