finished component: HopLimit

src/main/java/component/TTL.java

@@ -92,7 +92,7 @@ public class TTL implements IEncodingAble {
             return false;
         }
         long value=TLV.readNonNegativeInteger(block.getValue(),0,block.getLength().getVlIntValue2Int());
-        if(value==0){
+        if(value<0){
             return false;
         }
         this.ttl=value;