diff --git a/Test_Cases/IP_Checksum_Calculator.py b/Test_Cases/IP_Checksum_Calculator.py
index ff9cd9c..fb0bbb7 100644
--- a/Test_Cases/IP_Checksum_Calculator.py
+++ b/Test_Cases/IP_Checksum_Calculator.py
@@ -1,6 +1,8 @@
 # Code has been taken from https://www.codeproject.com/Tips/460867/Python-Implementation-of-IP-Checksum
 # Example is provided at https://www.thegeekstuff.com/2012/05/ip-header-checksum/
 
+# For now, manually changing values in the header field to compute IP checksum.
+
 def ip_checksum(ip_header, size):
     
     cksum = 0