diff --git a/p4src/parsers.p4 b/p4src/parsers.p4
index b2c05e2..4988ede 100644
--- a/p4src/parsers.p4
+++ b/p4src/parsers.p4
@@ -37,7 +37,6 @@ parser MyParser(packet_in packet,
     state ipv6 {
         packet.extract(hdr.ipv6);
 		meta.tcp_length = hdr.ipv6.payload_length;
-		meta.cast_length = (bit<32>) hdr.ipv6.payload_length;
 
         transition select(hdr.ipv6.next_header){
             PROTO_TCP: tcp;
diff --git a/p4src/static-mapping.p4 b/p4src/static-mapping.p4
index 2435351..36c67c5 100644
--- a/p4src/static-mapping.p4
+++ b/p4src/static-mapping.p4
@@ -63,6 +63,7 @@ control MyIngress(inout headers hdr,
         hdr.icmp6.type = ICMP6_ECHO_REPLY;
 
         meta.calc_icmp6_checksum = true;
+        meta.cast_length = (bit<32>) hdr.ipv6.payload_length;
     }
 
     /********************** Reply to NDP for US ***********************************/