change guid byte partition for ipv4 to use only the second and third group of the guid

cloud.insecurity.docker.ipam/Scope.cs

@@ -114,7 +114,8 @@ namespace cloud.insecurity.docker.ipam
             
             if (bytes.Length == 4)
             {
-                bytes = new byte[] {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}.Concat(bytes).ToArray();
+                bytes = new byte[] {0, 0, 0, 0}.Concat(bytes).ToArray()
+                    .Concat(new byte[] { 0, 0, 0, 0, 0, 0, 0, 0}).ToArray();
             }
             
             //bytes = bytes.Select(b => Convert.ToByte(b ^ prefixLen)).ToArray();
@@ -125,17 +126,21 @@ namespace cloud.insecurity.docker.ipam
                 {
                     // https://en.wikipedia.org/wiki/Universally_unique_identifier#History
                     return new Guid(
-                        b.ReadUInt32(),
-                        b.ReadUInt16(), 
-                        b.ReadUInt16(),
+                        b.ReadUInt32(),  // time low
+                        b.ReadUInt16(),    // time mid 
+                        b.ReadUInt16(),  // time hi and version 
+                        b.ReadByte(),    // clock seq hi and res?
+                        b.ReadByte(),    // clock seq lo?
                         b.ReadByte(),
                         b.ReadByte(),
                         b.ReadByte(),
                         b.ReadByte(),
                         b.ReadByte(),
-                        b.ReadByte(),
-                        b.ReadByte(),
-                        b.ReadByte());
+                        b.ReadByte()     /* 48-bit node id */);
+                    // however this is RFC4122 (g)UUID and the information 
+                    // is definitely not relevant but a nice piece of 
+                    // nostalgia. 
+                    
                 }
             }
         }