diff --git a/entry/src/kni_entry.cpp b/entry/src/kni_entry.cpp
index 34f4090..e3f7fa8 100644
--- a/entry/src/kni_entry.cpp
+++ b/entry/src/kni_entry.cpp
@@ -1254,6 +1254,11 @@ static char data_opstate(struct streaminfo *stream, struct pme_info *pmeinfo, co
 				ipv4_hdr = (struct iphdr*)a_packet;
 				len = ntohs(ipv4_hdr->tot_len);
 			}
+			if(pktinfo.ip_totlen > KNI_DEFAULT_MTU){
+				KNI_LOG_DEBUG(logger, "Next data packet exceed MTU(1500), stream traceid = %s, stream addr = %s", 
+						pmeinfo->stream_traceid, pmeinfo->stream_addr);
+				return APP_STATE_DROPPKT | APP_STATE_GIVEME;
+			}
 			ret = send_to_tfe((char*)a_packet, len, thread_seq, pmeinfo->tfe_id, pmeinfo->addr_type);
 			if(ret < 0){
 				KNI_LOG_ERROR(logger, "Failed at send continue packet to tfe%d, stream traceid = %s, stream addr = %s",