1 files changed, 4 insertions, 3 deletions
diff --git a/src/main_dpdk.cpp b/src/main_dpdk.cpp
index 7cbe7f2b..7c25b2e2 100755
--- a/src/main_dpdk.cpp
+++ b/src/main_dpdk.cpp
@@ -121,8 +121,6 @@ static inline int get_is_latency_thread_enable(){
 }
 
 struct port_cfg_t;
-//class  CPhyEthIF;
-//class CPhyEthIFStats ;
 
 class CTRexExtendedDriverBase {
 public:
@@ -808,7 +806,10 @@ static int parse_options(int argc, char *argv[], CParserOption* po, bool first_t
                 break;
 
             case OPT_LEARN_VERIFY :
-                po->m_learn_mode = CParserOption::LEARN_MODE_IP_OPTION;
+		// must configure learn_mode for learn verify to work. If different learn mode will be given later, it will be set instead.
+		if (po->m_learn_mode == 0) {
+		    po->m_learn_mode = CParserOption::LEARN_MODE_IP_OPTION;
+		}
                 po->preview.set_learn_and_verify_mode_enable(true);
                 break;