diff --git a/tools/testing/selftests/net/fib_nexthops.sh b/tools/testing/selftests/net/fib_nexthops.sh
index 06e4f12e838d..b74884d52913 100755
--- a/tools/testing/selftests/net/fib_nexthops.sh
+++ b/tools/testing/selftests/net/fib_nexthops.sh
@@ -754,6 +754,21 @@ ipv6_fcnal_runtime()
 	run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 124"
 	log_test $? 0 "IPv6 route using a group after removing v4 gateways"
 
+	run_cmd "$IP ro delete 2001:db8:101::1/128"
+	run_cmd "$IP nexthop add id 87 via 172.16.1.1 dev veth1"
+	run_cmd "$IP nexthop add id 88 via 172.16.1.1 dev veth1"
+	run_cmd "$IP nexthop replace id 124 group 86/87/88"
+	run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 124"
+	log_test $? 2 "IPv6 route can not have a group with v4 and v6 gateways"
+
+	run_cmd "$IP nexthop replace id 88 via 2001:db8:92::2 dev veth3"
+	run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 124"
+	log_test $? 2 "IPv6 route can not have a group with v4 and v6 gateways"
+
+	run_cmd "$IP nexthop replace id 87 via 2001:db8:92::2 dev veth3"
+	run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 124"
+	log_test $? 0 "IPv6 route using a group after replacing v4 gateways"
+
 	$IP nexthop flush >/dev/null 2>&1
 
 	#