diff --git a/tests/sys/netpfil/pf/fragmentation_compat.sh b/tests/sys/netpfil/pf/fragmentation_compat.sh
--- a/tests/sys/netpfil/pf/fragmentation_compat.sh
+++ b/tests/sys/netpfil/pf/fragmentation_compat.sh
@@ -326,53 +326,6 @@
 	pft_cleanup
 }
 
-atf_test_case "no_df" "cleanup"
-no_df_head()
-{
-	atf_set descr 'Test removing of DF flag'
-	atf_set require.user root
-}
-
-no_df_body()
-{
-	setup_router_server_ipv4
-
-	ifconfig ${epair_tester}a mtu 9000
-	jexec router ifconfig ${epair_tester}b mtu 9000
-	jexec router ifconfig ${epair_server}a mtu 1500
-	jexec server ifconfig ${epair_server}b mtu 1500
-
-	# Sanity check.
-	ping_server_check_reply exit:0 --ping-type=icmp
-
-	pft_set_rules router \
-		"scrub fragment reassemble" \
-		"pass out" \
-		"block in" \
-		"pass in inet proto icmp all icmp-type echoreq"
-
-	# Ping with normal, fragmentable packets.
-	ping_server_check_reply exit:0 --ping-type=icmp --send-length=2000
-
-	# Ping with non-fragmentable packets, this will fail.
-	ping_server_check_reply exit:1 --ping-type=icmp --send-length=2000 --send-flags DF
-
-	pft_set_rules router \
-		"scrub any reassemble" \
-		"pass out" \
-		"block in" \
-		"pass in inet proto icmp all icmp-type echoreq"
-
-	# Ping with non-fragmentable packets again.
-	# This time pf will strip the DF flag.
-	ping_server_check_reply exit:0 --ping-type=icmp --send-length=2000 --send-flags DF
-}
-
-no_df_cleanup()
-{
-	pft_cleanup
-}
-
 atf_init_test_cases()
 {
 	atf_add_test_case "too_many_fragments"
diff --git a/tests/sys/netpfil/pf/fragmentation_pass.sh b/tests/sys/netpfil/pf/fragmentation_pass.sh
--- a/tests/sys/netpfil/pf/fragmentation_pass.sh
+++ b/tests/sys/netpfil/pf/fragmentation_pass.sh
@@ -340,61 +340,6 @@
 	atf_set require.user root
 }
 
-no_df_body()
-{
-	setup_router_server_ipv4
-
-	ifconfig ${epair_tester}a mtu 9000
-	jexec router ifconfig ${epair_tester}b mtu 9000
-	jexec router ifconfig ${epair_server}a mtu 1500
-	jexec server ifconfig ${epair_server}b mtu 1500
-
-	# Sanity check.
-	ping_server_check_reply exit:0 --ping-type=icmp
-
-	pft_set_rules router \
-		"set reassemble no" \
-		"pass out" \
-		"block in" \
-		"pass in inet proto icmp all icmp-type echoreq"
-
-	# Ping with normal, fragmentable packets.
-	ping_server_check_reply exit:1 --ping-type=icmp --send-length=2000
-
-	pft_set_rules router \
-		"set reassemble yes" \
-		"pass out" \
-		"block in" \
-		"pass in inet proto icmp all icmp-type echoreq"
-
-	# Ping with normal, fragmentable packets.
-	ping_server_check_reply exit:0 --ping-type=icmp --send-length=2000
-
-	# Ping with non-fragmentable packets.
-	ping_server_check_reply exit:1 --ping-type=icmp --send-length=2000 --send-flags DF
-
-	pft_set_rules router \
-		"set reassemble yes no-df" \
-		"pass out" \
-		"block in" \
-		"pass in inet proto icmp all icmp-type echoreq"
-
-	# Ping with non-fragmentable packets again.
-	# This time pf will strip the DF flag.
-	ping_server_check_reply exit:0 --ping-type=icmp --send-length=2000 --send-flags DF
-}
-no_df_cleanup()
-{
-	pft_cleanup
-}
-
-atf_test_case "no_df" "cleanup"
-no_df_head()
-{
-	atf_set descr 'Test removing of DF flag'
-	atf_set require.user root
-}
-
 no_df_body()
 {
 	setup_router_server_ipv4
@@ -420,6 +365,7 @@
 	# getting properly forwarded.
 	ping_server_check_reply exit:0 --ping-type=icmp --send-length=2000 --send-flags DF
 }
+
 no_df_cleanup()
 {
 	pft_cleanup