diff --git a/p4src/static-mapping.p4 b/p4src/static-mapping.p4
index 0c52d42..a3e5cda 100644
--- a/p4src/static-mapping.p4
+++ b/p4src/static-mapping.p4
@@ -48,6 +48,16 @@ control MyIngress(inout headers hdr,
 
     /********************** NAT64 / NAT46 ACTIONS ***********************************/
 
+    /* changes for icmp6 -> icmp
+    - first echo request/reply
+    - later maybe other
+    */
+    action nat64_icmp6()
+    {
+        hdr.ipv4.protocol = PROTO_ICMP; // overwrite generic same protocol assumption
+    }
+
+
     /* NAT64 protocol unspecific changes */
     action nat64_generic(ipv4_addr_t src, ipv4_addr_t dst) {
 		hdr.ipv4.setValid();
@@ -83,13 +93,6 @@ control MyIngress(inout headers hdr,
         hdr.ipv6.setInvalid();
 	}
 
-    action nat64_icmp6()
-    {
-
-        hdr.ipv4.protocol = PROTO_ICMP; // overwrite generic same protocol assumption
-
-    }
-
     /* NAT46: protocol unspecific changes */
 	action nat46_generic(ipv6_addr_t src, ipv6_addr_t dst) {
 		hdr.ipv6.setValid();