diff --git a/bin/checksum_delta_diff_test.py b/bin/checksum_delta_diff_test.py
index 3e16262..b685599 100644
--- a/bin/checksum_delta_diff_test.py
+++ b/bin/checksum_delta_diff_test.py
@@ -164,25 +164,13 @@ if __name__ == '__main__':
                                                   checksums["ipv4"],
                                                   checksums["ipv6"] - checksums["ipv4"]))
 
+        header_diff_from_v6 = header_checksums["ipv6"] - header_checksums["ipv4"]
         print("Header v6: {} v4: {} diff: {}".format(header_checksums["ipv6"],
                                                      header_checksums["ipv4"],
-                                                     header_checksums["ipv6"] - header_checksums["ipv4"]))
+                                                     header_diff_from_v6))
 
-        p
+        print("Translating v6 to v4, expected v4 UDP checksum: {}".format(
+            checksums["ipv6"] - header_diff_from_v6))
 
-        # if UDP in packet:
-        #     sums += sum_for_udp(packet_rebuild)
-        # if TCP in packet:
-        #     sums += sum_for_udp(packet_rebuild)
-
-
-
-#            diff_total += packet_rebuild[IP].chksum
-#            diff_total -= packet_rebuild[IPv6].chksum# Checksums:
-# - tcp
-# - udp
-# - icmp6
-# - icmp
-# - ipv4 (no payload)
-#
-#         t.chksum = None
+        print("Translating v4 to v6, expected v6 UDP checksum: {}".format(
+            checksums["ipv4"] + header_diff_from_v6))