diff --git a/p4src/checksums.p4 b/p4src/checksums.p4
index d456ab5..2de339f 100644
--- a/p4src/checksums.p4
+++ b/p4src/checksums.p4
@@ -21,18 +21,18 @@ control MyVerifyChecksum(inout headers hdr, inout metadata meta) {
 
 control MyComputeChecksum(inout headers  hdr, inout metadata meta) {
     apply {
-        update_checksum_with_payload(meta.calc_icmp6_checksum,
-		 	{
-                hdr.ipv6.src_addr,         /* 128 */
-		 		hdr.ipv6.dst_addr,         /* 128 */
-                16w0,                      /* 16 try implicit cast */
-                hdr.ipv6.payload_length,   /* 16 */
-                24w0,                      /* 24 0's */
-                PROTO_ICMP6                /* 8 */
-            },
-            hdr.icmp6.checksum,
-            HashAlgorithm.csum16
-        );
+        // GRRRRR update_checksum_with_payload(meta.calc_icmp6_checksum,
+		// GRRRRR  	{
+        // GRRRRR         hdr.ipv6.src_addr,         /* 128 */
+		// GRRRRR  		hdr.ipv6.dst_addr,         /* 128 */
+        // GRRRRR         16w0,                      /* 16 try implicit cast */
+        // GRRRRR         hdr.ipv6.payload_length,   /* 16 */
+        // GRRRRR         24w0,                      /* 24 0's */
+        // GRRRRR         PROTO_ICMP6                /* 8 */
+        // GRRRRR     },
+        // GRRRRR     hdr.icmp6.checksum,
+        // GRRRRR     HashAlgorithm.csum16
+        // GRRRRR );
     }
 }