diff --git a/NEWS b/NEWS
index 4d6ebea89..b419b2628 100644
--- a/NEWS
+++ b/NEWS
@@ -12,6 +12,10 @@ Post v24.03.0
     flow table id.
     "lflow-stage-to-oftable STAGE_NAME" that converts stage name into OpenFlow
     table id.
+  - Allow Static Routes where the address families of ip_prefix and nexthop
+    diverge (e.g. IPv4 packets over IPv6 links). This is currently limited to
+    nexthops that have their mac addresses prepopulated (so
+    dynamic_neigh_routers must be false).
 
 OVN v24.03.0 - 01 Mar 2024
 --------------------------
diff --git a/northd/northd.c b/northd/northd.c
index 1839b7d8b..0359cde89 100644
--- a/northd/northd.c
+++ b/northd/northd.c
@@ -10238,18 +10238,6 @@ parsed_routes_add(struct ovn_datapath *od, const struct hmap *lr_ports,
         return NULL;
     }
 
-    /* Verify that ip_prefix and nexthop have same address familiy. */
-    if (valid_nexthop) {
-        if (IN6_IS_ADDR_V4MAPPED(&prefix) != IN6_IS_ADDR_V4MAPPED(&nexthop)) {
-            static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(5, 1);
-            VLOG_WARN_RL(&rl, "Address family doesn't match between 'ip_prefix'"
-                         " %s and 'nexthop' %s in static route "UUID_FMT,
-                         route->ip_prefix, route->nexthop,
-                         UUID_ARGS(&route->header_.uuid));
-            return NULL;
-        }
-    }
-
     /* Verify that ip_prefix and nexthop are on the same network. */
     if (!is_discard_route &&
         !find_static_route_outport(od, lr_ports, route,
@@ -10666,7 +10654,7 @@ build_ecmp_route_flow(struct lflow_table *lflows, struct ovn_datapath *od,
                       struct lflow_ref *lflow_ref)
 
 {
-    bool is_ipv4 = IN6_IS_ADDR_V4MAPPED(&eg->prefix);
+    bool is_ipv4_network = IN6_IS_ADDR_V4MAPPED(&eg->prefix);
     uint16_t priority;
     struct ecmp_route_list_node *er;
     struct ds route_match = DS_EMPTY_INITIALIZER;
@@ -10675,7 +10663,8 @@ build_ecmp_route_flow(struct lflow_table *lflows, struct ovn_datapath *od,
     int ofs = !strcmp(eg->origin, ROUTE_ORIGIN_CONNECTED) ?
         ROUTE_PRIO_OFFSET_CONNECTED: ROUTE_PRIO_OFFSET_STATIC;
     build_route_match(NULL, eg->route_table_id, prefix_s, eg->plen,
-                      eg->is_src_route, is_ipv4, &route_match, &priority, ofs);
+                      eg->is_src_route, is_ipv4_network, &route_match,
+                      &priority, ofs);
     free(prefix_s);
 
     struct ds actions = DS_EMPTY_INITIALIZER;
@@ -10708,7 +10697,11 @@ build_ecmp_route_flow(struct lflow_table *lflows, struct ovn_datapath *od,
         /* Find the outgoing port. */
         const char *lrp_addr_s = NULL;
         struct ovn_port *out_port = NULL;
-        if (!find_static_route_outport(od, lr_ports, route, is_ipv4,
+        bool is_ipv4_gateway = is_ipv4_network;
+        if (route->nexthop && route->nexthop[0]) {
+          is_ipv4_gateway = strchr(route->nexthop, '.') ? true : false;
+        }
+        if (!find_static_route_outport(od, lr_ports, route, is_ipv4_gateway,
                                        &lrp_addr_s, &out_port)) {
             continue;
         }
@@ -10733,9 +10726,9 @@ build_ecmp_route_flow(struct lflow_table *lflows, struct ovn_datapath *od,
                       "eth.src = %s; "
                       "outport = %s; "
                       "next;",
-                      is_ipv4 ? REG_NEXT_HOP_IPV4 : REG_NEXT_HOP_IPV6,
+                      is_ipv4_gateway ? REG_NEXT_HOP_IPV4 : REG_NEXT_HOP_IPV6,
                       route->nexthop,
-                      is_ipv4 ? REG_SRC_IPV4 : REG_SRC_IPV6,
+                      is_ipv4_gateway ? REG_SRC_IPV4 : REG_SRC_IPV6,
                       lrp_addr_s,
                       out_port->lrp_networks.ea_s,
                       out_port->json_key);
@@ -10757,13 +10750,18 @@ add_route(struct lflow_table *lflows, struct ovn_datapath *od,
           const struct ovsdb_idl_row *stage_hint, bool is_discard_route,
           int ofs, struct lflow_ref *lflow_ref)
 {
-    bool is_ipv4 = strchr(network_s, '.') ? true : false;
+    bool is_ipv4_network = strchr(network_s, '.') ? true : false;
+    bool is_ipv4_gateway = is_ipv4_network;
     struct ds match = DS_EMPTY_INITIALIZER;
     uint16_t priority;
     const struct ovn_port *op_inport = NULL;
 
+    if (gateway && gateway[0]) {
+        is_ipv4_gateway = strchr(gateway, '.') ? true : false;
+    }
+
     /* IPv6 link-local addresses must be scoped to the local router port. */
-    if (!is_ipv4) {
+    if (!is_ipv4_network) {
         struct in6_addr network;
         ovs_assert(ipv6_parse(network_s, &network));
         if (in6_is_lla(&network)) {
@@ -10771,7 +10769,7 @@ add_route(struct lflow_table *lflows, struct ovn_datapath *od,
         }
     }
     build_route_match(op_inport, rtb_id, network_s, plen, is_src_route,
-                      is_ipv4, &match, &priority, ofs);
+                      is_ipv4_network, &match, &priority, ofs);
 
     struct ds common_actions = DS_EMPTY_INITIALIZER;
     struct ds actions = DS_EMPTY_INITIALIZER;
@@ -10779,11 +10777,12 @@ add_route(struct lflow_table *lflows, struct ovn_datapath *od,
         ds_put_cstr(&actions, debug_drop_action());
     } else {
         ds_put_format(&common_actions, REG_ECMP_GROUP_ID" = 0; %s = ",
-                      is_ipv4 ? REG_NEXT_HOP_IPV4 : REG_NEXT_HOP_IPV6);
+                      is_ipv4_gateway ? REG_NEXT_HOP_IPV4 : REG_NEXT_HOP_IPV6);
         if (gateway && gateway[0]) {
             ds_put_cstr(&common_actions, gateway);
         } else {
-            ds_put_format(&common_actions, "ip%s.dst", is_ipv4 ? "4" : "6");
+            ds_put_format(&common_actions, "ip%s.dst",
+                          is_ipv4_network ? "4" : "6");
         }
         ds_put_format(&common_actions, "; "
                       "%s = %s; "
@@ -10791,7 +10790,7 @@ add_route(struct lflow_table *lflows, struct ovn_datapath *od,
                       "outport = %s; "
                       "flags.loopback = 1; "
                       "next;",
-                      is_ipv4 ? REG_SRC_IPV4 : REG_SRC_IPV6,
+                      is_ipv4_gateway ? REG_SRC_IPV4 : REG_SRC_IPV6,
                       lrp_addr_s,
                       op->lrp_networks.ea_s,
                       op->json_key);
diff --git a/tests/ovn-nbctl.at b/tests/ovn-nbctl.at
index 5248e6c76..60dcdc9be 100644
--- a/tests/ovn-nbctl.at
+++ b/tests/ovn-nbctl.at
@@ -1757,7 +1757,7 @@ AT_CHECK([ovn-nbctl lr-route-add lr0 10.0.0.1/24 11.0.0.2])
 AT_CHECK([ovn-nbctl lr-route-add lr0 10.0.10.0/24 lp0])
 AT_CHECK([ovn-nbctl --bfd lr-route-add lr0 10.0.20.0/24 11.0.2.1 lp0])
 AT_CHECK([ovn-nbctl lr-route-add lr0 10.0.10.0/24 lp1], [1], [],
-  [ovn-nbctl: bad IPv4 nexthop argument: lp1
+  [ovn-nbctl: bad nexthop argument: lp1
 ])
 
 dnl Add overlapping route with 10.0.0.1/24
@@ -1771,13 +1771,13 @@ AT_CHECK([ovn-nbctl lr-route-add lr0 10.0.0.111/24a 11.0.0.1], [1], [],
   [ovn-nbctl: bad prefix argument: 10.0.0.111/24a
 ])
 AT_CHECK([ovn-nbctl lr-route-add lr0 10.0.0.111/24 11.0.0.1a], [1], [],
-  [ovn-nbctl: bad IPv4 nexthop argument: 11.0.0.1a
+  [ovn-nbctl: bad nexthop argument: 11.0.0.1a
 ])
 AT_CHECK([ovn-nbctl lr-route-add lr0 10.0.0.111/24 11.0.0.1/24], [1], [],
-  [ovn-nbctl: bad IPv4 nexthop argument: 11.0.0.1/24
+  [ovn-nbctl: bad nexthop argument: 11.0.0.1/24
 ])
 AT_CHECK([ovn-nbctl lr-route-add lr0 2001:0db8:1::/64 2001:0db8:0:f103::1/64], [1], [],
-  [ovn-nbctl: bad IPv6 nexthop argument: 2001:0db8:0:f103::1/64
+  [ovn-nbctl: bad nexthop argument: 2001:0db8:0:f103::1/64
 ])
 AT_CHECK([ovn-nbctl --ecmp lr-route-add lr0 20.0.0.0/24 discard], [1], [],
   [ovn-nbctl: ecmp is not valid for discard routes.
diff --git a/tests/ovn.at b/tests/ovn.at
index 4d0c7ad53..8818d0db9 100644
--- a/tests/ovn.at
+++ b/tests/ovn.at
@@ -38475,3 +38475,618 @@ OVS_WAIT_FOR_OUTPUT([as hv1 ovs-ofctl dump-flows br-int table=0 |grep priority=1
 OVN_CLEANUP([hv1])
 AT_CLEANUP
 ])
+
+OVN_FOR_EACH_NORTHD([
+AT_SETUP([2 HVs, 2 LS, 1 lport/LS, 2 peer LRs, IPv4 over IPv6])
+ovn_start
+
+# Logical network:
+# Two LRs - R1 and R2 that are connected to each other as peers in 2001:db8::/64
+# network. R1 has a switchs ls1 (192.168.1.0/24) connected to it.
+# R2 has ls2 (172.16.1.0/24) connected to it.
+
+ls1_lp1_mac="f0:00:00:01:02:03"
+rp_ls1_mac="00:00:00:01:02:03"
+rp_ls2_mac="00:00:00:01:02:04"
+ls2_lp1_mac="f0:00:00:01:02:04"
+
+ls1_lp1_ip="192.168.1.2"
+ls2_lp1_ip="172.16.1.2"
+
+ovn-nbctl lr-add R1
+ovn-nbctl lr-add R2
+
+ovn-nbctl ls-add ls1
+ovn-nbctl ls-add ls2
+
+# Connect ls1 to R1
+ovn-nbctl lrp-add R1 ls1 $rp_ls1_mac 192.168.1.1/24
+
+ovn-nbctl lsp-add ls1 rp-ls1 -- set Logical_Switch_Port rp-ls1 type=router \
+  options:router-port=ls1 addresses=\"$rp_ls1_mac\"
+
+# Connect ls2 to R2
+ovn-nbctl lrp-add R2 ls2 $rp_ls2_mac 172.16.1.1/24
+
+ovn-nbctl lsp-add ls2 rp-ls2 -- set Logical_Switch_Port rp-ls2 type=router \
+  options:router-port=ls2 addresses=\"$rp_ls2_mac\"
+
+# Connect R1 to R2
+ovn-nbctl lrp-add R1 R1_R2 00:00:00:02:03:04 2001:db8::1/64 peer=R2_R1
+ovn-nbctl lrp-add R2 R2_R1 00:00:00:02:03:05 2001:db8::2/64 peer=R1_R2
+
+AT_CHECK([ovn-nbctl lr-route-add R1 "0.0.0.0/0" 2001:db8::2])
+AT_CHECK([ovn-nbctl lr-route-add R2 "0.0.0.0/0" 2001:db8::1])
+
+# Create logical port ls1-lp1 in ls1
+ovn-nbctl lsp-add ls1 ls1-lp1 \
+-- lsp-set-addresses ls1-lp1 "$ls1_lp1_mac $ls1_lp1_ip"
+
+# Create logical port ls2-lp1 in ls2
+ovn-nbctl lsp-add ls2 ls2-lp1 \
+-- lsp-set-addresses ls2-lp1 "$ls2_lp1_mac $ls2_lp1_ip"
+
+# Create two hypervisor and create OVS ports corresponding to logical ports.
+net_add n1
+
+sim_add hv1
+as hv1
+ovs-vsctl add-br br-phys
+ovn_attach n1 br-phys 192.168.0.1
+ovs-vsctl -- add-port br-int hv1-vif1 -- \
+    set interface hv1-vif1 external-ids:iface-id=ls1-lp1 \
+    options:tx_pcap=hv1/vif1-tx.pcap \
+    options:rxq_pcap=hv1/vif1-rx.pcap \
+    ofport-request=1
+
+sim_add hv2
+as hv2
+ovs-vsctl add-br br-phys
+ovn_attach n1 br-phys 192.168.0.2
+ovs-vsctl -- add-port br-int hv2-vif1 -- \
+    set interface hv2-vif1 external-ids:iface-id=ls2-lp1 \
+    options:tx_pcap=hv2/vif1-tx.pcap \
+    options:rxq_pcap=hv2/vif1-rx.pcap \
+    ofport-request=1
+
+
+# Pre-populate the hypervisors' ARP tables so that we don't lose any
+# packets for ARP resolution (native tunneling doesn't queue packets
+# for ARP resolution).
+OVN_POPULATE_ARP
+
+# Allow some time for ovn-northd and ovn-controller to catch up.
+wait_for_ports_up
+check ovn-nbctl --wait=hv sync
+
+# Packet to send.
+packet="inport==\"ls1-lp1\" && eth.src==$ls1_lp1_mac && eth.dst==$rp_ls1_mac &&
+        ip4 && ip.ttl==64 && ip4.src==$ls1_lp1_ip && ip4.dst==$ls2_lp1_ip &&
+        udp && udp.src==53 && udp.dst==4369"
+OVS_WAIT_UNTIL([as hv1 ovs-appctl -t ovn-controller inject-pkt "$packet"])
+
+
+echo "---------NB dump-----"
+ovn-nbctl show
+echo "---------------------"
+ovn-nbctl list logical_router
+echo "---------------------"
+ovn-nbctl list logical_router_port
+echo "---------------------"
+
+echo "---------SB dump-----"
+ovn-sbctl list datapath_binding
+echo "---------------------"
+ovn-sbctl list port_binding
+echo "---------------------"
+
+echo "------ hv1 dump ----------"
+as hv1 ovs-ofctl show br-int
+as hv1 ovs-ofctl dump-flows br-int
+echo "------ hv2 dump ----------"
+as hv2 ovs-ofctl show br-int
+as hv2 ovs-ofctl dump-flows br-int
+
+# Packet to Expect
+# The TTL should be decremented by 2.
+packet="eth.src==$rp_ls2_mac && eth.dst==$ls2_lp1_mac &&
+        ip4 && ip.ttl==62 && ip4.src==$ls1_lp1_ip && ip4.dst==$ls2_lp1_ip &&
+        udp && udp.src==53 && udp.dst==4369"
+echo $packet | ovstest test-ovn expr-to-packets > expected
+
+OVN_CHECK_PACKETS([hv2/vif1-tx.pcap], [expected])
+
+AT_CHECK([ovn-sbctl dump-flows | grep lr_in_arp_resolve | \
+grep "reg0 == 172.16.1.2" | wc -l], [0], [1
+])
+
+# Disable the ls2-lp1 port.
+ovn-nbctl --wait=hv set logical_switch_port ls2-lp1 enabled=false
+
+AT_CHECK([ovn-sbctl dump-flows | grep lr_in_arp_resolve | \
+grep "reg0 == 172.16.1.2" | wc -l], [0], [0
+])
+
+# Generate the packet destined for ls2-lp1 and it should not be delivered.
+# Packet to send.
+packet="inport==\"ls1-lp1\" && eth.src==$ls1_lp1_mac && eth.dst==$rp_ls1_mac &&
+        ip4 && ip.ttl==64 && ip4.src==$ls1_lp1_ip && ip4.dst==$ls2_lp1_ip &&
+        udp && udp.src==53 && udp.dst==4369"
+
+OVS_WAIT_UNTIL([as hv1 ovs-appctl -t ovn-controller inject-pkt "$packet"])
+# The 2nd packet sent shound not be received.
+OVN_CHECK_PACKETS([hv2/vif1-tx.pcap], [expected])
+
+OVN_CLEANUP([hv1],[hv2])
+
+AT_CLEANUP
+])
+
+OVN_FOR_EACH_NORTHD([
+AT_SETUP([2 HVs, 2 LS, 1 lport/LS, LRs connected via LS, IPv4 over IPv6])
+ovn_start
+
+# Logical network:
+# Two LRs - R1 and R2 that are connected to ls-transfer in 2001:db8::/64
+# network. R1 has a switchs ls1 (192.168.1.0/24) connected to it.
+# R2 has ls2 (172.16.1.0/24) connected to it.
+
+ls1_lp1_mac="f0:00:00:01:02:03"
+rp_ls1_mac="00:00:00:01:02:03"
+rp_ls2_mac="00:00:00:01:02:04"
+ls2_lp1_mac="f0:00:00:01:02:04"
+
+ls1_lp1_ip="192.168.1.2"
+ls2_lp1_ip="172.16.1.2"
+
+ovn-nbctl lr-add R1
+ovn-nbctl lr-add R2
+
+ovn-nbctl ls-add ls1
+ovn-nbctl ls-add ls2
+ovn-nbctl ls-add ls-transfer
+
+# Connect ls1 to R1
+ovn-nbctl lrp-add R1 ls1 $rp_ls1_mac 192.168.1.1/24
+
+ovn-nbctl lsp-add ls1 rp-ls1 -- set Logical_Switch_Port rp-ls1 type=router \
+  options:router-port=ls1 addresses=\"$rp_ls1_mac\"
+
+# Connect ls2 to R2
+ovn-nbctl lrp-add R2 ls2 $rp_ls2_mac 172.16.1.1/24
+
+ovn-nbctl lsp-add ls2 rp-ls2 -- set Logical_Switch_Port rp-ls2 type=router \
+  options:router-port=ls2 addresses=\"$rp_ls2_mac\"
+
+# Connect R1 to R2
+ovn-nbctl lrp-add R1 R1_ls-transfer 00:00:00:02:03:04 2001:db8::1/64
+ovn-nbctl lrp-add R2 R2_ls-transfer 00:00:00:02:03:05 2001:db8::2/64
+
+ovn-nbctl lsp-add ls-transfer ls-transfer_r1 -- \
+  set Logical_Switch_Port ls-transfer_r1 type=router \
+  options:router-port=R1_ls-transfer addresses=\"router\"
+ovn-nbctl lsp-add ls-transfer ls-transfer_r2 -- \
+  set Logical_Switch_Port ls-transfer_r2 type=router \
+  options:router-port=R2_ls-transfer addresses=\"router\"
+
+AT_CHECK([ovn-nbctl lr-route-add R1 "0.0.0.0/0" 2001:db8::2])
+AT_CHECK([ovn-nbctl lr-route-add R2 "0.0.0.0/0" 2001:db8::1])
+
+# Create logical port ls1-lp1 in ls1
+ovn-nbctl lsp-add ls1 ls1-lp1 \
+-- lsp-set-addresses ls1-lp1 "$ls1_lp1_mac $ls1_lp1_ip"
+
+# Create logical port ls2-lp1 in ls2
+ovn-nbctl lsp-add ls2 ls2-lp1 \
+-- lsp-set-addresses ls2-lp1 "$ls2_lp1_mac $ls2_lp1_ip"
+
+# Create two hypervisor and create OVS ports corresponding to logical ports.
+net_add n1
+
+sim_add hv1
+as hv1
+ovs-vsctl add-br br-phys
+ovn_attach n1 br-phys 192.168.0.1
+ovs-vsctl -- add-port br-int hv1-vif1 -- \
+    set interface hv1-vif1 external-ids:iface-id=ls1-lp1 \
+    options:tx_pcap=hv1/vif1-tx.pcap \
+    options:rxq_pcap=hv1/vif1-rx.pcap \
+    ofport-request=1
+
+sim_add hv2
+as hv2
+ovs-vsctl add-br br-phys
+ovn_attach n1 br-phys 192.168.0.2
+ovs-vsctl -- add-port br-int hv2-vif1 -- \
+    set interface hv2-vif1 external-ids:iface-id=ls2-lp1 \
+    options:tx_pcap=hv2/vif1-tx.pcap \
+    options:rxq_pcap=hv2/vif1-rx.pcap \
+    ofport-request=1
+
+
+# Pre-populate the hypervisors' ARP tables so that we don't lose any
+# packets for ARP resolution (native tunneling doesn't queue packets
+# for ARP resolution).
+OVN_POPULATE_ARP
+
+# Allow some time for ovn-northd and ovn-controller to catch up.
+wait_for_ports_up
+check ovn-nbctl --wait=hv sync
+
+# Packet to send.
+packet="inport==\"ls1-lp1\" && eth.src==$ls1_lp1_mac && eth.dst==$rp_ls1_mac &&
+        ip4 && ip.ttl==64 && ip4.src==$ls1_lp1_ip && ip4.dst==$ls2_lp1_ip &&
+        udp && udp.src==53 && udp.dst==4369"
+OVS_WAIT_UNTIL([as hv1 ovs-appctl -t ovn-controller inject-pkt "$packet"])
+
+
+echo "---------NB dump-----"
+ovn-nbctl show
+echo "---------------------"
+ovn-nbctl list logical_router
+echo "---------------------"
+ovn-nbctl list logical_router_port
+echo "---------------------"
+
+echo "---------SB dump-----"
+ovn-sbctl list datapath_binding
+echo "---------------------"
+ovn-sbctl list port_binding
+echo "---------------------"
+
+echo "------ hv1 dump ----------"
+as hv1 ovs-ofctl show br-int
+as hv1 ovs-ofctl dump-flows br-int
+echo "------ hv2 dump ----------"
+as hv2 ovs-ofctl show br-int
+as hv2 ovs-ofctl dump-flows br-int
+
+# Packet to Expect
+# The TTL should be decremented by 2.
+packet="eth.src==$rp_ls2_mac && eth.dst==$ls2_lp1_mac &&
+        ip4 && ip.ttl==62 && ip4.src==$ls1_lp1_ip && ip4.dst==$ls2_lp1_ip &&
+        udp && udp.src==53 && udp.dst==4369"
+echo $packet | ovstest test-ovn expr-to-packets > expected
+
+OVN_CHECK_PACKETS([hv2/vif1-tx.pcap], [expected])
+
+AT_CHECK([ovn-sbctl dump-flows | grep lr_in_arp_resolve | \
+grep "reg0 == 172.16.1.2" | wc -l], [0], [1
+])
+
+# Disable the ls2-lp1 port.
+ovn-nbctl --wait=hv set logical_switch_port ls2-lp1 enabled=false
+
+AT_CHECK([ovn-sbctl dump-flows | grep lr_in_arp_resolve | \
+grep "reg0 == 172.16.1.2" | wc -l], [0], [0
+])
+
+# Generate the packet destined for ls2-lp1 and it should not be delivered.
+# Packet to send.
+packet="inport==\"ls1-lp1\" && eth.src==$ls1_lp1_mac && eth.dst==$rp_ls1_mac &&
+        ip4 && ip.ttl==64 && ip4.src==$ls1_lp1_ip && ip4.dst==$ls2_lp1_ip &&
+        udp && udp.src==53 && udp.dst==4369"
+
+OVS_WAIT_UNTIL([as hv1 ovs-appctl -t ovn-controller inject-pkt "$packet"])
+# The 2nd packet sent shound not be received.
+OVN_CHECK_PACKETS([hv2/vif1-tx.pcap], [expected])
+
+OVN_CLEANUP([hv1],[hv2])
+
+AT_CLEANUP
+])
+
+OVN_FOR_EACH_NORTHD([
+AT_SETUP([2 HVs, 2 LS, 1 lport/LS, LRs connected via LS, IPv4 over IPv6, ECMP])
+ovn_start
+
+# Logical network:
+# Two LRs - R1 and R2 that are connected to ls-transfer1 and lr-transfer2 in
+# 2001:db8:1::/64 and 2001:db8:2::/64
+# network. R1 has a switchs ls1 (192.168.1.0/24) connected to it.
+# R2 has ls2 (172.16.1.0/24) connected to it.
+
+ls1_lp1_mac="f0:00:00:01:02:03"
+rp_ls1_mac="00:00:00:01:02:03"
+rp_ls2_mac="00:00:00:01:02:04"
+ls2_lp1_mac="f0:00:00:01:02:04"
+
+ls1_lp1_ip="192.168.1.2"
+ls2_lp1_ip="172.16.1.2"
+
+ovn-nbctl lr-add R1
+ovn-nbctl lr-add R2
+
+ovn-nbctl ls-add ls1
+ovn-nbctl ls-add ls2
+ovn-nbctl ls-add ls-transfer1
+ovn-nbctl ls-add ls-transfer2
+
+# Connect ls1 to R1
+ovn-nbctl lrp-add R1 ls1 $rp_ls1_mac 192.168.1.1/24
+
+ovn-nbctl lsp-add ls1 rp-ls1 -- set Logical_Switch_Port rp-ls1 type=router \
+  options:router-port=ls1 addresses=\"$rp_ls1_mac\"
+
+# Connect ls2 to R2
+ovn-nbctl lrp-add R2 ls2 $rp_ls2_mac 172.16.1.1/24
+
+ovn-nbctl lsp-add ls2 rp-ls2 -- set Logical_Switch_Port rp-ls2 type=router \
+  options:router-port=ls2 addresses=\"$rp_ls2_mac\"
+
+# Connect R1 to R2 (ls-transfer1)
+ovn-nbctl lrp-add R1 R1_ls-transfer1 00:00:00:02:03:04 2001:db8:1::1/64
+ovn-nbctl lrp-add R2 R2_ls-transfer1 00:00:00:02:03:05 2001:db8:1::2/64
+
+ovn-nbctl lsp-add ls-transfer1 ls-transfer1_r1 -- \
+  set Logical_Switch_Port ls-transfer1_r1 type=router \
+  options:router-port=R1_ls-transfer1 addresses=\"router\"
+ovn-nbctl lsp-add ls-transfer1 ls-transfer1_r2 -- \
+  set Logical_Switch_Port ls-transfer1_r2 type=router \
+  options:router-port=R2_ls-transfer1 addresses=\"router\"
+
+# Connect R1 to R2 (ls-transfer2)
+ovn-nbctl lrp-add R1 R1_ls-transfer2 00:00:00:02:03:14 2001:db8:2::1/64
+ovn-nbctl lrp-add R2 R2_ls-transfer2 00:00:00:02:03:15 2001:db8:2::2/64
+
+ovn-nbctl lsp-add ls-transfer2 ls-transfer2_r1 -- \
+  set Logical_Switch_Port ls-transfer2_r1 type=router \
+  options:router-port=R1_ls-transfer2 addresses=\"router\"
+ovn-nbctl lsp-add ls-transfer2 ls-transfer2_r2 -- \
+  set Logical_Switch_Port ls-transfer2_r2 type=router \
+  options:router-port=R2_ls-transfer2 addresses=\"router\"
+
+AT_CHECK([ovn-nbctl lr-route-add R1 "0.0.0.0/0" 2001:db8:1::2])
+AT_CHECK([ovn-nbctl --ecmp lr-route-add R1 "0.0.0.0/0" 2001:db8:2::2])
+AT_CHECK([ovn-nbctl lr-route-add R2 "0.0.0.0/0" 2001:db8:1::1])
+AT_CHECK([ovn-nbctl --ecmp lr-route-add R2 "0.0.0.0/0" 2001:db8:2::1])
+
+# Create logical port ls1-lp1 in ls1
+ovn-nbctl lsp-add ls1 ls1-lp1 \
+-- lsp-set-addresses ls1-lp1 "$ls1_lp1_mac $ls1_lp1_ip"
+
+# Create logical port ls2-lp1 in ls2
+ovn-nbctl lsp-add ls2 ls2-lp1 \
+-- lsp-set-addresses ls2-lp1 "$ls2_lp1_mac $ls2_lp1_ip"
+
+# Create two hypervisor and create OVS ports corresponding to logical ports.
+net_add n1
+
+sim_add hv1
+as hv1
+ovs-vsctl add-br br-phys
+ovn_attach n1 br-phys 192.168.0.1
+ovs-vsctl -- add-port br-int hv1-vif1 -- \
+    set interface hv1-vif1 external-ids:iface-id=ls1-lp1 \
+    options:tx_pcap=hv1/vif1-tx.pcap \
+    options:rxq_pcap=hv1/vif1-rx.pcap \
+    ofport-request=1
+
+sim_add hv2
+as hv2
+ovs-vsctl add-br br-phys
+ovn_attach n1 br-phys 192.168.0.2
+ovs-vsctl -- add-port br-int hv2-vif1 -- \
+    set interface hv2-vif1 external-ids:iface-id=ls2-lp1 \
+    options:tx_pcap=hv2/vif1-tx.pcap \
+    options:rxq_pcap=hv2/vif1-rx.pcap \
+    ofport-request=1
+
+
+# Pre-populate the hypervisors' ARP tables so that we don't lose any
+# packets for ARP resolution (native tunneling doesn't queue packets
+# for ARP resolution).
+OVN_POPULATE_ARP
+
+# Allow some time for ovn-northd and ovn-controller to catch up.
+wait_for_ports_up
+check ovn-nbctl --wait=hv sync
+
+# Packet to send.
+packet="inport==\"ls1-lp1\" && eth.src==$ls1_lp1_mac && eth.dst==$rp_ls1_mac &&
+        ip4 && ip.ttl==64 && ip4.src==$ls1_lp1_ip && ip4.dst==$ls2_lp1_ip &&
+        udp && udp.src==53 && udp.dst==4369"
+OVS_WAIT_UNTIL([as hv1 ovs-appctl -t ovn-controller inject-pkt "$packet"])
+
+
+echo "---------NB dump-----"
+ovn-nbctl show
+echo "---------------------"
+ovn-nbctl list logical_router
+echo "---------------------"
+ovn-nbctl list logical_router_port
+echo "---------------------"
+
+echo "---------SB dump-----"
+ovn-sbctl list datapath_binding
+echo "---------------------"
+ovn-sbctl list port_binding
+echo "---------------------"
+
+echo "------ hv1 dump ----------"
+as hv1 ovs-ofctl show br-int
+as hv1 ovs-ofctl dump-flows br-int
+echo "------ hv2 dump ----------"
+as hv2 ovs-ofctl show br-int
+as hv2 ovs-ofctl dump-flows br-int
+
+# Packet to Expect
+# The TTL should be decremented by 2.
+packet="eth.src==$rp_ls2_mac && eth.dst==$ls2_lp1_mac &&
+        ip4 && ip.ttl==62 && ip4.src==$ls1_lp1_ip && ip4.dst==$ls2_lp1_ip &&
+        udp && udp.src==53 && udp.dst==4369"
+echo $packet | ovstest test-ovn expr-to-packets > expected
+
+OVN_CHECK_PACKETS([hv2/vif1-tx.pcap], [expected])
+
+AT_CHECK([ovn-sbctl dump-flows | grep lr_in_arp_resolve | \
+grep "reg0 == 172.16.1.2" | wc -l], [0], [1
+])
+
+# Disable the ls2-lp1 port.
+ovn-nbctl --wait=hv set logical_switch_port ls2-lp1 enabled=false
+
+AT_CHECK([ovn-sbctl dump-flows | grep lr_in_arp_resolve | \
+grep "reg0 == 172.16.1.2" | wc -l], [0], [0
+])
+
+# Generate the packet destined for ls2-lp1 and it should not be delivered.
+# Packet to send.
+packet="inport==\"ls1-lp1\" && eth.src==$ls1_lp1_mac && eth.dst==$rp_ls1_mac &&
+        ip4 && ip.ttl==64 && ip4.src==$ls1_lp1_ip && ip4.dst==$ls2_lp1_ip &&
+        udp && udp.src==53 && udp.dst==4369"
+
+OVS_WAIT_UNTIL([as hv1 ovs-appctl -t ovn-controller inject-pkt "$packet"])
+# The 2nd packet sent shound not be received.
+OVN_CHECK_PACKETS([hv2/vif1-tx.pcap], [expected])
+
+OVN_CLEANUP([hv1],[hv2])
+
+AT_CLEANUP
+])
+
+OVN_FOR_EACH_NORTHD([
+AT_SETUP([2 HVs, 2 LS, 1 lport/LS, 2 peer LRs, IPv6 over IPv4])
+ovn_start
+
+# Logical network:
+# Two LRs - R1 and R2 that are connected to each other as peers in 10.0.0.0/24
+# network. R1 has a switchs ls1 (2001:db8:1::/64) connected to it.
+# R2 has ls2 (2001:db8:2::/64) connected to it.
+
+ls1_lp1_mac="f0:00:00:01:02:03"
+rp_ls1_mac="00:00:00:01:02:03"
+rp_ls2_mac="00:00:00:01:02:04"
+ls2_lp1_mac="f0:00:00:01:02:04"
+
+ls1_lp1_ip="2001:db8:1::2"
+ls2_lp1_ip="2001:db8:2::2"
+
+ovn-nbctl lr-add R1
+ovn-nbctl lr-add R2
+
+ovn-nbctl ls-add ls1
+ovn-nbctl ls-add ls2
+
+# Connect ls1 to R1
+ovn-nbctl lrp-add R1 ls1 $rp_ls1_mac 2001:db8:1::1/64
+
+ovn-nbctl lsp-add ls1 rp-ls1 -- set Logical_Switch_Port rp-ls1 type=router \
+  options:router-port=ls1 addresses=\"$rp_ls1_mac\"
+
+# Connect ls2 to R2
+ovn-nbctl lrp-add R2 ls2 $rp_ls2_mac 2001:db8:2::1/64
+
+ovn-nbctl lsp-add ls2 rp-ls2 -- set Logical_Switch_Port rp-ls2 type=router \
+  options:router-port=ls2 addresses=\"$rp_ls2_mac\"
+
+# Connect R1 to R2
+ovn-nbctl lrp-add R1 R1_R2 00:00:00:02:03:04 10.0.0.1/24 peer=R2_R1
+ovn-nbctl lrp-add R2 R2_R1 00:00:00:02:03:05 10.0.0.2/24 peer=R1_R2
+
+AT_CHECK([ovn-nbctl lr-route-add R1 "::/0" 10.0.0.2])
+AT_CHECK([ovn-nbctl lr-route-add R2 "::/0" 10.0.0.1])
+
+# Create logical port ls1-lp1 in ls1
+ovn-nbctl lsp-add ls1 ls1-lp1 \
+-- lsp-set-addresses ls1-lp1 "$ls1_lp1_mac $ls1_lp1_ip"
+
+# Create logical port ls2-lp1 in ls2
+ovn-nbctl lsp-add ls2 ls2-lp1 \
+-- lsp-set-addresses ls2-lp1 "$ls2_lp1_mac $ls2_lp1_ip"
+
+# Create two hypervisor and create OVS ports corresponding to logical ports.
+net_add n1
+
+sim_add hv1
+as hv1
+ovs-vsctl add-br br-phys
+ovn_attach n1 br-phys 192.168.0.1
+ovs-vsctl -- add-port br-int hv1-vif1 -- \
+    set interface hv1-vif1 external-ids:iface-id=ls1-lp1 \
+    options:tx_pcap=hv1/vif1-tx.pcap \
+    options:rxq_pcap=hv1/vif1-rx.pcap \
+    ofport-request=1
+
+sim_add hv2
+as hv2
+ovs-vsctl add-br br-phys
+ovn_attach n1 br-phys 192.168.0.2
+ovs-vsctl -- add-port br-int hv2-vif1 -- \
+    set interface hv2-vif1 external-ids:iface-id=ls2-lp1 \
+    options:tx_pcap=hv2/vif1-tx.pcap \
+    options:rxq_pcap=hv2/vif1-rx.pcap \
+    ofport-request=1
+
+
+# Pre-populate the hypervisors' ARP tables so that we don't lose any
+# packets for ARP resolution (native tunneling doesn't queue packets
+# for ARP resolution).
+OVN_POPULATE_ARP
+
+# Allow some time for ovn-northd and ovn-controller to catch up.
+wait_for_ports_up
+check ovn-nbctl --wait=hv sync
+
+# Packet to send.
+packet="inport==\"ls1-lp1\" && eth.src==$ls1_lp1_mac && eth.dst==$rp_ls1_mac &&
+        ip6 && ip.ttl==64 && ip6.src==$ls1_lp1_ip && ip6.dst==$ls2_lp1_ip &&
+        udp && udp.src==53 && udp.dst==4369"
+OVS_WAIT_UNTIL([as hv1 ovs-appctl -t ovn-controller inject-pkt "$packet"])
+
+
+echo "---------NB dump-----"
+ovn-nbctl show
+echo "---------------------"
+ovn-nbctl list logical_router
+echo "---------------------"
+ovn-nbctl list logical_router_port
+echo "---------------------"
+
+echo "---------SB dump-----"
+ovn-sbctl list datapath_binding
+echo "---------------------"
+ovn-sbctl list port_binding
+echo "---------------------"
+
+echo "------ hv1 dump ----------"
+as hv1 ovs-ofctl show br-int
+as hv1 ovs-ofctl dump-flows br-int
+echo "------ hv2 dump ----------"
+as hv2 ovs-ofctl show br-int
+as hv2 ovs-ofctl dump-flows br-int
+
+# Packet to Expect
+# The TTL should be decremented by 2.
+packet="eth.src==$rp_ls2_mac && eth.dst==$ls2_lp1_mac &&
+        ip6 && ip.ttl==62 && ip6.src==$ls1_lp1_ip && ip6.dst==$ls2_lp1_ip &&
+        udp && udp.src==53 && udp.dst==4369"
+echo $packet | ovstest test-ovn expr-to-packets > expected
+
+OVN_CHECK_PACKETS([hv2/vif1-tx.pcap], [expected])
+
+AT_CHECK([ovn-sbctl dump-flows | grep lr_in_arp_resolve | \
+grep "xxreg0 == 2001:db8:2::2" | wc -l], [0], [1
+])
+
+# Disable the ls2-lp1 port.
+ovn-nbctl --wait=hv set logical_switch_port ls2-lp1 enabled=false
+
+AT_CHECK([ovn-sbctl dump-flows | grep lr_in_arp_resolve | \
+grep "xxreg0 == 2001:db8:2::2" | wc -l], [0], [0
+])
+
+# Generate the packet destined for ls2-lp1 and it should not be delivered.
+# Packet to send.
+packet="inport==\"ls1-lp1\" && eth.src==$ls1_lp1_mac && eth.dst==$rp_ls1_mac &&
+        ip6 && ip.ttl==64 && ip6.src==$ls1_lp1_ip && ip6.dst==$ls2_lp1_ip &&
+        udp && udp.src==53 && udp.dst==4369"
+
+OVS_WAIT_UNTIL([as hv1 ovs-appctl -t ovn-controller inject-pkt "$packet"])
+# The 2nd packet sent shound not be received.
+OVN_CHECK_PACKETS([hv2/vif1-tx.pcap], [expected])
+
+OVN_CLEANUP([hv1],[hv2])
+
+AT_CLEANUP
+])
diff --git a/utilities/ovn-nbctl.c b/utilities/ovn-nbctl.c
index 25eb86f7f..f827b2ad9 100644
--- a/utilities/ovn-nbctl.c
+++ b/utilities/ovn-nbctl.c
@@ -4546,11 +4546,9 @@ nbctl_lr_route_add(struct ctl_context *ctx)
     }
 
     char *route_table = shash_find_data(&ctx->options, "--route-table");
-    bool v6_prefix = false;
     prefix = normalize_ipv4_prefix_str(ctx->argv[2]);
     if (!prefix) {
         prefix = normalize_ipv6_prefix_str(ctx->argv[2]);
-        v6_prefix = true;
     }
     if (!prefix) {
         ctl_error(ctx, "bad prefix argument: %s", ctx->argv[2]);
@@ -4561,15 +4559,15 @@ nbctl_lr_route_add(struct ctl_context *ctx)
     if (is_discard_route) {
         next_hop = xasprintf("discard");
     } else {
-        next_hop = v6_prefix
-            ? normalize_ipv6_addr_str(ctx->argv[3])
-            : normalize_ipv4_addr_str(ctx->argv[3]);
+        next_hop = normalize_ipv4_addr_str(ctx->argv[3]);
+        if (!next_hop) {
+            next_hop = normalize_ipv6_addr_str(ctx->argv[3]);
+        }
         if (!next_hop) {
             /* check if it is a output port. */
             error = lrp_by_name_or_uuid(ctx, ctx->argv[3], true, &out_lrp);
             if (error) {
-                ctl_error(ctx, "bad %s nexthop argument: %s",
-                          v6_prefix ? "IPv6" : "IPv4", ctx->argv[3]);
+                ctl_error(ctx, "bad nexthop argument: %s", ctx->argv[3]);
                 free(error);
                 goto cleanup;
             }
