diff --git a/lib/iscsi/param.c b/lib/iscsi/param.c
index 9b1400435..18f579359 100644
--- a/lib/iscsi/param.c
+++ b/lib/iscsi/param.c
@@ -514,6 +514,7 @@ static const char *discovery_ignored_param[] = {
 	"FirstBurstLength"
 	"MaxOutstandingR2T",
 	"DataPDUInOrder",
+	"DataSequenceInOrder",
 	NULL,
 };
 
diff --git a/test/iscsi_tgt/calsoft/calsoft.py b/test/iscsi_tgt/calsoft/calsoft.py
index ad1e551f4..5be658e61 100755
--- a/test/iscsi_tgt/calsoft/calsoft.py
+++ b/test/iscsi_tgt/calsoft/calsoft.py
@@ -28,11 +28,17 @@ A standard-label MUST begin with a capital letter and must not exceed
 63 characters.
 key name: A standard-label
 '''
+'''
+06/10/2020 add tc_login_29_1 to known_failed_cases
+RFC 3720 12.19. DataSequenceInOrder
+Irrelevant when: SessionType=Discovery
+'''
+
 known_failed_cases = ['tc_ffp_15_2', 'tc_ffp_29_2', 'tc_ffp_29_3', 'tc_ffp_29_4',
                       'tc_err_1_1', 'tc_err_1_2', 'tc_err_2_8',
                       'tc_err_3_1', 'tc_err_3_2', 'tc_err_3_3',
                       'tc_err_3_4', 'tc_err_5_1', 'tc_login_3_1',
-                      'tc_login_11_2', 'tc_login_11_4', 'tc_login_2_2']
+                      'tc_login_11_2', 'tc_login_11_4', 'tc_login_2_2', 'tc_login_29_1']
 
 
 def run_case(case, result_list, log_dir_path):