diff --git a/p4src/checksums.p4 b/p4src/checksums.p4
index 4a7709d..d2e20a7 100644
--- a/p4src/checksums.p4
+++ b/p4src/checksums.p4
@@ -22,20 +22,20 @@ control MyVerifyChecksum(inout headers hdr, inout metadata meta) {
 control MyComputeChecksum(inout headers  hdr, inout metadata meta) {
     apply {
 
-        bit<32> icmp6_len = 32; /* for icmp6 NS */
+        // GRRRRR bit<32> icmp6_len = 32; /* for icmp6 NS */
 
-		update_checksum (
-			hdr.icmp6.isValid(),
-			{
-                hdr.ipv6.src_addr,         /* 128 */
-				hdr.ipv6.dst_addr,         /* 128 */
-                icmp6_len,                 /* 32 */
-                24w0,                      /* 24 0's */
-                PROTO_ICMP6                /* 8 */
-            },
-            hdr.icmp6.checksum,
-            HashAlgorithm.csum16
-        );
+		// GRRRRR update_checksum (
+		// GRRRRR 	hdr.icmp6.isValid(),
+		// GRRRRR 	{
+        // GRRRRR         hdr.ipv6.src_addr,         /* 128 */
+		// GRRRRR 		hdr.ipv6.dst_addr,         /* 128 */
+        // GRRRRR         icmp6_len,                 /* 32 */
+        // GRRRRR         24w0,                      /* 24 0's */
+        // GRRRRR         PROTO_ICMP6                /* 8 */
+        // GRRRRR     },
+        // GRRRRR     hdr.icmp6.checksum,
+        // GRRRRR     HashAlgorithm.csum16
+        // GRRRRR );
     }
 }