diff --git a/src/mesa_pkt_dump.h b/src/mesa_pkt_dump.h
index ad16cc8..9072c4b 100644
--- a/src/mesa_pkt_dump.h
+++ b/src/mesa_pkt_dump.h
@@ -1,7 +1,7 @@
 #ifndef _MESA_PKT_DUMP_H_
 #define _MESA_PKT_DUMP_H_ 1
 
-#define MESA_PKT_DUM_H_VER (20210330)
+#define MESA_PKT_DUM_H_VER (20210907)
 
 /* 
 	用于DPDK-3.0, PFRING模式下, 驱动独占网卡时, 通过平台实时捕包.
@@ -17,6 +17,7 @@ enum _pkt_classify{
 	PKT_CLASSIFY_DROP		= 0x08,  /* DMAC ascii码值: D */
 	PKT_CLASSIFY_ERROR		= 0x10,  /* DMAC ascii码值: E */
 	PKT_CLASSIFY_REPEAT		= 0x20,  /* DMAC ascii码值: R */
+	PKT_CLASSIFY_BYPASS		= 0x40,  /* DMAC ascii码值:   P */
 };
 
 enum pkt_dump_opt_t{
diff --git a/src/tcpdump.c b/src/tcpdump.c
index 6b56ed9..e5d6d78 100644
--- a/src/tcpdump.c
+++ b/src/tcpdump.c
@@ -1384,7 +1384,8 @@ static short get_pkt_classify_optarg(const char *optarg)
                 pkt_classify_flag |=   PKT_CLASSIFY_ERROR;
         else if (strcasecmp(section, "repeat") == 0)
                 pkt_classify_flag |=   PKT_CLASSIFY_REPEAT;
-
+        else if (strcasecmp(section, "bypass") == 0)
+                pkt_classify_flag |=   PKT_CLASSIFY_BYPASS;
         else
         {
             return 0;
@@ -3367,7 +3368,7 @@ print_usage(void)
 	(void)fprintf(stderr,
 "\t\t[ --vlan-as-mac-in-mac ] force VLAN to be analysed as MAC-IN-MAC format.\n");
 	(void)fprintf(stderr,
-"\t\t[ --classify in|forward|inject|drop|error|repeat ]. specify packet capture classifier by direction and operation\n");
+"\t\t[ --classify in|forward|inject|drop|error|repeat|bypass ]. specify packet capture classifier by direction and operation\n");
 	(void)fprintf(stderr,
 "\t\t[ --enable_classify_watermark ]. enable record classify type in src mac address\n");
 #endif