diff --git a/core/rtw_br_ext.c b/core/rtw_br_ext.c
index 7bad000..ee37087 100644
--- a/core/rtw_br_ext.c
+++ b/core/rtw_br_ext.c
@@ -1419,12 +1419,7 @@ int nat25_db_handle(_adapter *priv, struct sk_buff *skb, int method)
 
 
 				__nat25_generate_ipv6_network_addr(networkAddr, (unsigned int *)&iph->daddr);
-				if (!__nat25_db_network_lookup_and_replace(priv, skb, networkAddr)) {
-#ifdef SUPPORT_RX_UNI2MCAST
-					if (iph->daddr.s6_addr[0] == 0xff)
-						convert_ipv6_mac_to_mc(skb);
-#endif
-				}
+				__nat25_db_network_lookup_and_replace(priv, skb, networkAddr);
 				return 0;
 
 			default: