diff --git a/include/ovn/actions.h b/include/ovn/actions.h
index 15cee478d..8c7208ffc 100644
--- a/include/ovn/actions.h
+++ b/include/ovn/actions.h
@@ -73,7 +73,8 @@ struct simap;
     OVNACT(SET_QUEUE,         ovnact_set_queue)       \
     OVNACT(DNS_LOOKUP,        ovnact_dns_lookup)      \
     OVNACT(LOG,               ovnact_log)             \
-    OVNACT(PUT_ND_RA_OPTS,    ovnact_put_opts)
+    OVNACT(PUT_ND_RA_OPTS,    ovnact_put_opts)        \
+    OVNACT(ND_NS,             ovnact_nest)
 
 /* enum ovnact_type, with a member OVNACT_<ENUM> for each action. */
 enum OVS_PACKED_ENUM ovnact_type {
@@ -427,6 +428,12 @@ enum action_opcode {
      *   - Any number of ICMPv6 options.
      */
     ACTION_OPCODE_PUT_ND_RA_OPTS,
+
+    /* "nd_ns { ...actions... }".
+     *
+     * The actions, in OpenFlow 1.3 format, follow the action_header.
+     */
+    ACTION_OPCODE_ND_NS,
 };
 
 /* Header. */
diff --git a/ovn/controller/pinctrl.c b/ovn/controller/pinctrl.c
index 3a1348937..5aedf7d0d 100644
--- a/ovn/controller/pinctrl.c
+++ b/ovn/controller/pinctrl.c
@@ -85,6 +85,9 @@ static void pinctrl_handle_put_nd_ra_opts(
     const struct flow *ip_flow, struct dp_packet *pkt_in,
     struct ofputil_packet_in *pin, struct ofpbuf *userdata,
     struct ofpbuf *continuation);
+static void pinctrl_handle_nd_ns(const struct flow *ip_flow,
+                                 const struct match *md,
+                                 struct ofpbuf *userdata);
 
 COVERAGE_DEFINE(pinctrl_drop_put_mac_binding);
 
@@ -132,6 +135,43 @@ set_switch_config(struct rconn *swconn,
 }
 
 static void
+set_actions_and_enqueue_msg(const struct dp_packet *packet,
+                           const struct match *md,
+                           struct ofpbuf *userdata)
+{
+    /* Copy metadata from 'md' into the packet-out via "set_field"
+     * actions, then add actions from 'userdata'.
+     */
+    uint64_t ofpacts_stub[4096 / 8];
+    struct ofpbuf ofpacts = OFPBUF_STUB_INITIALIZER(ofpacts_stub);
+    enum ofp_version version = rconn_get_version(swconn);
+
+    reload_metadata(&ofpacts, md);
+    enum ofperr error = ofpacts_pull_openflow_actions(userdata, userdata->size,
+                                                      version, NULL, NULL,
+                                                      &ofpacts);
+    if (error) {
+        static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
+        VLOG_WARN_RL(&rl, "failed to parse actions from userdata (%s)",
+                     ofperr_to_string(error));
+        ofpbuf_uninit(&ofpacts);
+        return;
+    }
+
+    struct ofputil_packet_out po = {
+        .packet = dp_packet_data(packet),
+        .packet_len = dp_packet_size(packet),
+        .buffer_id = UINT32_MAX,
+        .ofpacts = ofpacts.data,
+        .ofpacts_len = ofpacts.size,
+    };
+    match_set_in_port(&po.flow_metadata, OFPP_CONTROLLER);
+    enum ofputil_protocol proto = ofputil_protocol_from_ofp_version(version);
+    queue_msg(ofputil_encode_packet_out(&po, proto));
+    ofpbuf_uninit(&ofpacts);
+}
+
+static void
 pinctrl_handle_arp(const struct flow *ip_flow, const struct match *md,
                    struct ofpbuf *userdata)
 {
@@ -166,40 +206,8 @@ pinctrl_handle_arp(const struct flow *ip_flow, const struct match *md,
                       ip_flow->vlans[0].tci);
     }
 
-    /* Compose actions.
-     *
-     * First, copy metadata from 'md' into the packet-out via "set_field"
-     * actions, then add actions from 'userdata'.
-     */
-    uint64_t ofpacts_stub[4096 / 8];
-    struct ofpbuf ofpacts = OFPBUF_STUB_INITIALIZER(ofpacts_stub);
-    enum ofp_version version = rconn_get_version(swconn);
-
-    reload_metadata(&ofpacts, md);
-    enum ofperr error = ofpacts_pull_openflow_actions(userdata, userdata->size,
-                                                      version, NULL, NULL,
-                                                      &ofpacts);
-    if (error) {
-        static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
-        VLOG_WARN_RL(&rl, "failed to parse arp actions (%s)",
-                     ofperr_to_string(error));
-        goto exit;
-    }
-
-    struct ofputil_packet_out po = {
-        .packet = dp_packet_data(&packet),
-        .packet_len = dp_packet_size(&packet),
-        .buffer_id = UINT32_MAX,
-        .ofpacts = ofpacts.data,
-        .ofpacts_len = ofpacts.size,
-    };
-    match_set_in_port(&po.flow_metadata, OFPP_CONTROLLER);
-    enum ofputil_protocol proto = ofputil_protocol_from_ofp_version(version);
-    queue_msg(ofputil_encode_packet_out(&po, proto));
-
-exit:
+    set_actions_and_enqueue_msg(&packet, md, userdata);
     dp_packet_uninit(&packet);
-    ofpbuf_uninit(&ofpacts);
 }
 
 static void
@@ -994,6 +1002,10 @@ process_packet_in(const struct ofp_header *msg, struct controller_ctx *ctx)
                                       &continuation);
         break;
 
+    case ACTION_OPCODE_ND_NS:
+        pinctrl_handle_nd_ns(&headers, &pin.flow_metadata, &userdata);
+        break;
+
     default:
         VLOG_WARN_RL(&rl, "unrecognized packet-in opcode %"PRIu32,
                      ntohl(ah->opcode));
@@ -1812,9 +1824,6 @@ pinctrl_handle_nd_na(const struct flow *ip_flow, const struct match *md,
         return;
     }
 
-    enum ofp_version version = rconn_get_version(swconn);
-    enum ofputil_protocol proto = ofputil_protocol_from_ofp_version(version);
-
     uint64_t packet_stub[128 / 8];
     struct dp_packet packet;
     dp_packet_use_stub(&packet, packet_stub, sizeof packet_stub);
@@ -1827,35 +1836,32 @@ pinctrl_handle_nd_na(const struct flow *ip_flow, const struct match *md,
                   &ip_flow->nd_target, &ip_flow->ipv6_src,
                   htonl(ND_RSO_SOLICITED | ND_RSO_OVERRIDE));
 
-    /* Reload previous packet metadata. */
-    uint64_t ofpacts_stub[4096 / 8];
-    struct ofpbuf ofpacts = OFPBUF_STUB_INITIALIZER(ofpacts_stub);
-    reload_metadata(&ofpacts, md);
+    /* Reload previous packet metadata and set actions from userdata. */
+    set_actions_and_enqueue_msg(&packet, md, userdata);
+    dp_packet_uninit(&packet);
+}
 
-    enum ofperr error = ofpacts_pull_openflow_actions(userdata, userdata->size,
-                                                      version, NULL, NULL,
-                                                      &ofpacts);
-    if (error) {
+static void
+pinctrl_handle_nd_ns(const struct flow *ip_flow, const struct match *md,
+                     struct ofpbuf *userdata)
+{
+    /* This action only works for IPv6 packets. */
+    if (get_dl_type(ip_flow) != htons(ETH_TYPE_IPV6)) {
         static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
-        VLOG_WARN_RL(&rl, "failed to parse actions for 'na' (%s)",
-                     ofperr_to_string(error));
-        goto exit;
+        VLOG_WARN_RL(&rl, "NS action on non-IPv6 packet");
+        return;
     }
 
-    struct ofputil_packet_out po = {
-        .packet = dp_packet_data(&packet),
-        .packet_len = dp_packet_size(&packet),
-        .buffer_id = UINT32_MAX,
-        .ofpacts = ofpacts.data,
-        .ofpacts_len = ofpacts.size,
-    };
-    match_set_in_port(&po.flow_metadata, OFPP_CONTROLLER);
+    uint64_t packet_stub[128 / 8];
+    struct dp_packet packet;
+    dp_packet_use_stub(&packet, packet_stub, sizeof packet_stub);
 
-    queue_msg(ofputil_encode_packet_out(&po, proto));
+    compose_nd_ns(&packet, ip_flow->dl_src, &ip_flow->ipv6_src,
+                  &ip_flow->ipv6_dst);
 
-exit:
+    /* Reload previous packet metadata and set actions from userdata. */
+    set_actions_and_enqueue_msg(&packet, md, userdata);
     dp_packet_uninit(&packet);
-    ofpbuf_uninit(&ofpacts);
 }
 
 static void
diff --git a/ovn/lib/actions.c b/ovn/lib/actions.c
index 8d5863c0a..d0a4d7753 100644
--- a/ovn/lib/actions.c
+++ b/ovn/lib/actions.c
@@ -1134,6 +1134,12 @@ parse_ND_NA(struct action_context *ctx)
 }
 
 static void
+parse_ND_NS(struct action_context *ctx)
+{
+    parse_nested_action(ctx, OVNACT_ND_NS, "ip6");
+}
+
+static void
 parse_CLONE(struct action_context *ctx)
 {
     parse_nested_action(ctx, OVNACT_CLONE, NULL);
@@ -1161,6 +1167,12 @@ format_ND_NA(const struct ovnact_nest *nest, struct ds *s)
 }
 
 static void
+format_ND_NS(const struct ovnact_nest *nest, struct ds *s)
+{
+    format_nested_action(nest, "nd_ns", s);
+}
+
+static void
 format_CLONE(const struct ovnact_nest *nest, struct ds *s)
 {
     format_nested_action(nest, "clone", s);
@@ -1207,6 +1219,14 @@ encode_ND_NA(const struct ovnact_nest *on,
 }
 
 static void
+encode_ND_NS(const struct ovnact_nest *on,
+             const struct ovnact_encode_params *ep,
+             struct ofpbuf *ofpacts)
+{
+    encode_nested_neighbor_actions(on, ep, ACTION_OPCODE_ND_NS, ofpacts);
+}
+
+static void
 encode_CLONE(const struct ovnact_nest *on,
              const struct ovnact_encode_params *ep,
              struct ofpbuf *ofpacts)
@@ -2146,6 +2166,8 @@ parse_action(struct action_context *ctx)
         parse_ARP(ctx);
     } else if (lexer_match_id(ctx->lexer, "nd_na")) {
         parse_ND_NA(ctx);
+    } else if (lexer_match_id(ctx->lexer, "nd_ns")) {
+        parse_ND_NS(ctx);
     } else if (lexer_match_id(ctx->lexer, "get_arp")) {
         parse_get_mac_bind(ctx, 32, ovnact_put_GET_ARP(ctx->ovnacts));
     } else if (lexer_match_id(ctx->lexer, "put_arp")) {
diff --git a/ovn/northd/ovn-northd.8.xml b/ovn/northd/ovn-northd.8.xml
index a994abf78..17123c690 100644
--- a/ovn/northd/ovn-northd.8.xml
+++ b/ovn/northd/ovn-northd.8.xml
@@ -1915,15 +1915,15 @@ next;
 
     <p>
       In the common case where the Ethernet destination has been resolved, this
-      table outputs the packet.  Otherwise, it composes and sends an ARP
-      request.  It holds the following flows:
+      table outputs the packet.  Otherwise, it composes and sends an ARP or
+      IPv6 Neighbor Solicitation request.  It holds the following flows:
     </p>
 
     <ul>
       <li>
         <p>
-          Unknown MAC address.  A priority-100 flow with match <code>eth.dst ==
-          00:00:00:00:00:00</code> has the following actions:
+          Unknown MAC address.  A priority-100 flow for IPv4 packets with match
+          <code>eth.dst == 00:00:00:00:00:00</code> has the following actions:
         </p>
 
         <pre>
@@ -1937,13 +1937,25 @@ arp {
         </pre>
 
         <p>
+          Unknown MAC address.  A priority-100 flow for IPv6 packets with match
+          <code>eth.dst == 00:00:00:00:00:00</code> has the following actions:
+        </p>
+
+        <pre>
+nd_ns {
+    nd.target = xxreg0;
+    output;
+};
+        </pre>
+
+        <p>
           (Ingress table <code>IP Routing</code> initialized <code>reg1</code>
           with the IP address owned by <code>outport</code> and
-          <code>reg0</code> with the next-hop IP address)
+          <code>(xx)reg0</code> with the next-hop IP address)
         </p>
 
         <p>
-          The IP packet that triggers the ARP request is dropped.
+          The IP packet that triggers the ARP/IPv6 NS request is dropped.
         </p>
       </li>
 
diff --git a/ovn/northd/ovn-northd.c b/ovn/northd/ovn-northd.c
index 3da20d25b..b4ea34bc6 100644
--- a/ovn/northd/ovn-northd.c
+++ b/ovn/northd/ovn-northd.c
@@ -5703,7 +5703,7 @@ build_lrouter_flows(struct hmap *datapaths, struct hmap *ports,
      *
      * In the common case where the Ethernet destination has been resolved,
      * this table outputs the packet (priority 0).  Otherwise, it composes
-     * and sends an ARP request (priority 100). */
+     * and sends an ARP/IPv6 NA request (priority 100). */
     HMAP_FOR_EACH (od, key_node, datapaths) {
         if (!od->nbr) {
             continue;
@@ -5718,6 +5718,12 @@ build_lrouter_flows(struct hmap *datapaths, struct hmap *ports,
                       "arp.op = 1; " /* ARP request */
                       "output; "
                       "};");
+        ovn_lflow_add(lflows, od, S_ROUTER_IN_ARP_REQUEST, 100,
+                      "eth.dst == 00:00:00:00:00:00",
+                      "nd_ns { "
+                      "nd.target = xxreg0; "
+                      "output; "
+                      "};");
         ovn_lflow_add(lflows, od, S_ROUTER_IN_ARP_REQUEST, 0, "1", "output;");
     }
 
diff --git a/ovn/ovn-sb.xml b/ovn/ovn-sb.xml
index 2e4f28b96..ca8cbecdd 100644
--- a/ovn/ovn-sb.xml
+++ b/ovn/ovn-sb.xml
@@ -1258,6 +1258,43 @@
           <p><b>Example:</b> <code>put_arp(inport, arp.spa, arp.sha);</code></p>
         </dd>
 
+        <dt><code>nd_ns { <var>action</var>; </code>...<code> };</code></dt>
+        <dd>
+          <p>
+            Temporarily replaces the IPv6 packet being processed by an IPv6
+            Neighbor Solicitation packet and executes each nested
+            <var>action</var> on the IPv6 NS packet.  Actions following the
+            <var>nd_ns</var> action, if any, apply to the original, unmodified
+            packet.
+          </p>
+
+          <p>
+            The IPv6 NS packet that this action operates on is initialized
+            based on the IPv6 packet being processed, as follows.  These are
+            default values that the nested actions will probably want to
+            change:
+          </p>
+
+          <ul>
+            <li><code>eth.src</code> unchanged</li>
+            <li><code>eth.dst</code> set to IPv6 multicast MAC address</li>
+            <li><code>eth.type = 0x86dd</code></li>
+            <li><code>ip6.src</code> copied from <code>ip6.src</code></li>
+            <li>
+              <code>ip6.dst</code> set to IPv6 Solicited-Node multicast address
+            </li>
+            <li><code>icmp6.type = 135</code> (Neighbor Solicitation)</li>
+            <li><code>nd.target</code> copied from <code>ip6.dst</code></li>
+          </ul>
+
+          <p>
+            The IPv6 NS packet has the same VLAN header, if any, as the IP
+            packet it replaces.
+          </p>
+
+          <p><b>Prerequisite:</b> <code>ip6</code></p>
+        </dd>
+
         <dt>
           <code>nd_na { <var>action</var>; </code>...<code> };</code>
         </dt>
diff --git a/ovn/utilities/ovn-trace.c b/ovn/utilities/ovn-trace.c
index 211148b8b..e457284fc 100644
--- a/ovn/utilities/ovn-trace.c
+++ b/ovn/utilities/ovn-trace.c
@@ -1510,6 +1510,31 @@ execute_nd_na(const struct ovnact_nest *on, const struct ovntrace_datapath *dp,
 }
 
 static void
+execute_nd_ns(const struct ovnact_nest *on, const struct ovntrace_datapath *dp,
+              const struct flow *uflow, uint8_t table_id,
+              enum ovnact_pipeline pipeline, struct ovs_list *super)
+{
+    struct flow na_flow = *uflow;
+
+    /* Update fields for NA. */
+    na_flow.dl_src = uflow->dl_src;
+    na_flow.ipv6_src = uflow->ipv6_src;
+    na_flow.ipv6_dst = uflow->ipv6_dst;
+    struct in6_addr sn_addr;
+    in6_addr_solicited_node(&sn_addr, &uflow->ipv6_dst);
+    ipv6_multicast_to_ethernet(&na_flow.dl_dst, &sn_addr);
+    na_flow.tp_src = htons(135);
+    na_flow.arp_sha = eth_addr_zero;
+    na_flow.arp_tha = uflow->dl_dst;
+
+    struct ovntrace_node *node = ovntrace_node_append(
+        super, OVNTRACE_NODE_TRANSFORMATION, "nd_ns");
+
+    trace_actions(on->nested, on->nested_len, dp, &na_flow,
+                  table_id, pipeline, &node->subs);
+}
+
+static void
 execute_get_mac_bind(const struct ovnact_get_mac_bind *bind,
                      const struct ovntrace_datapath *dp,
                      struct flow *uflow, struct ovs_list *super)
@@ -1811,6 +1836,11 @@ trace_actions(const struct ovnact *ovnacts, size_t ovnacts_len,
                           super);
             break;
 
+        case OVNACT_ND_NS:
+            execute_nd_ns(ovnact_get_ND_NS(a), dp, uflow, table_id, pipeline,
+                          super);
+            break;
+
         case OVNACT_GET_ARP:
             execute_get_mac_bind(ovnact_get_GET_ARP(a), dp, uflow, super);
             break;
diff --git a/tests/ovn.at b/tests/ovn.at
index 3aa4e5e22..13cdc1679 100644
--- a/tests/ovn.at
+++ b/tests/ovn.at
@@ -993,6 +993,16 @@ reg1[0] = put_dhcp_opts(offerip="xyzzy");
 reg1[0] = put_dhcp_opts(offerip=1.2.3.4, domain=1.2.3.4);
     DHCPv4 option domain requires string value.
 
+# nd_ns
+nd_ns { nd.target = xxreg0; output; };
+    encodes as controller(userdata=00.00.00.09.00.00.00.00.ff.ff.00.18.00.00.23.20.00.06.00.80.00.00.00.00.00.01.de.10.00.01.2e.10.ff.ff.00.10.00.00.23.20.00.0e.ff.f8.40.00.00.00)
+    has prereqs ip6
+
+nd_ns { };
+    formats as nd_ns { drop; };
+    encodes as controller(userdata=00.00.00.09.00.00.00.00)
+    has prereqs ip6
+
 # nd_na
 nd_na { eth.src = 12:34:56:78:9a:bc; nd.tll = 12:34:56:78:9a:bc; outport = inport; inport = ""; /* Allow sending out inport. */ output; };
     formats as nd_na { eth.src = 12:34:56:78:9a:bc; nd.tll = 12:34:56:78:9a:bc; outport = inport; inport = ""; output; };
@@ -8795,6 +8805,112 @@ OVN_CLEANUP([gw1],[gw2],[hv1])
 
 AT_CLEANUP
 
+AT_SETUP([ovn -- IPv6 Neighbor Solicitation for unknown MAC])
+AT_KEYWORDS([ovn-nd_ns for unknown mac])
+AT_SKIP_IF([test $HAVE_PYTHON = no])
+ovn_start
+
+ovn-nbctl ls-add sw0_ip6
+ovn-nbctl lsp-add sw0_ip6 sw0_ip6-port1
+ovn-nbctl lsp-set-addresses sw0_ip6-port1 \
+"50:64:00:00:00:02 aef0::5264:00ff:fe00:0002"
+
+ovn-nbctl lsp-set-port-security sw0_ip6-port1 \
+"50:64:00:00:00:02 aef0::5264:00ff:fe00:0002"
+
+ovn-nbctl lr-add lr0_ip6
+ovn-nbctl lrp-add lr0_ip6 lrp0_ip6 00:00:00:00:af:01 aef0::/64
+ovn-nbctl lsp-add sw0_ip6 lrp0_ip6-attachment
+ovn-nbctl lsp-set-type lrp0_ip6-attachment router
+ovn-nbctl lsp-set-addresses lrp0_ip6-attachment 00:00:00:00:af:01
+ovn-nbctl lsp-set-options lrp0_ip6-attachment router-port=lrp0_ip6
+ovn-nbctl set logical_router_port lrp0_ip6 ipv6_ra_configs:address_mode=slaac
+
+ovn-nbctl ls-add public
+ovn-nbctl lsp-add public ln-public
+ovn-nbctl lsp-set-addresses ln-public unknown
+ovn-nbctl lsp-set-type ln-public localnet
+ovn-nbctl lsp-set-options ln-public network_name=phys
+
+ovn-nbctl lrp-add lr0_ip6 ip6_public 00:00:02:01:02:04 \
+2001:db8:1:0:200:02ff:fe01:0204/64 \
+-- set Logical_Router_port ip6_public options:redirect-chassis="hv1"
+
+
+ovn-nbctl lsp-add public rp-ip6_public -- set Logical_Switch_Port \
+rp-ip6_public  type=router options:router-port=ip6_public \
+-- lsp-set-addresses rp-ip6_public router
+
+net_add n1
+sim_add hv1
+as hv1
+ovs-vsctl add-br br-phys
+ovn_attach n1 br-phys 192.168.0.2
+
+ovs-vsctl -- add-port br-int hv1-vif1 -- \
+    set interface hv1-vif1 external-ids:iface-id=sw0_ip6-port1 \
+    options:tx_pcap=hv1/vif1-tx.pcap \
+    options:rxq_pcap=hv1/vif1-rx.pcap \
+    ofport-request=1
+ovs-vsctl set open . external-ids:ovn-bridge-mappings=phys:br-phys
+
+# Allow some time for ovn-northd and ovn-controller to catch up.
+# XXX This should be more systematic.
+sleep 1
+
+trim_zeros() {
+    sed 's/\(00\)\{1,\}$//'
+}
+
+# Test the IPv6 Neighbor Solicitation (NS) - nd_ns action for unknown MAC
+# addresses. ovn-controller should generate an IPv6 NS request for IPv6
+# packets whose MAC is unknown (in the ARP_REQUEST router pipeline stage.
+# test_ipv6 INPORT SRC_MAC DST_MAC SRC_IP DST_IP OUTPORT...
+# This function sends ipv6 packet
+test_ipv6() {
+    local inport=$1 src_mac=$2 dst_mac=$3 src_ip=$4
+    dst_ip=20010db800010000020002fffe010205
+
+    local packet=${dst_mac}${src_mac}86dd6000000000083aff${src_ip}${dst_ip}
+    packet=${packet}8000000000000000
+    shift; shift; shift; shift
+
+    dst_mac=3333ff010205
+    src_mac=000002010204
+    mcast_node_ip=ff0200000000000000000001ff010205
+    expected_packet=${dst_mac}${src_mac}86dd6000000000203aff${src_ip}
+    expected_packet=${expected_packet}${mcast_node_ip}8700XXXX00000000${dst_ip}
+    expected_packet=${expected_packet}0101${src_mac}
+
+    as hv1 ovs-appctl netdev-dummy/receive hv1-vif${inport} $packet
+    echo $expected_packet >> ipv6_ns.expected
+}
+
+src_mac=506400000002
+dst_mac=00000000af01
+src_ip=aef0000000000000526400fffe000002
+# Send an IPv6 packet. Generated IPv6 Neighbor solicitation packet
+# should be received by the ports attached to br-phys.
+test_ipv6 1 $src_mac $dst_mac $src_ip 2
+
+$PYTHON "$top_srcdir/utilities/ovs-pcap.in" hv1/br-phys_n1-tx.pcap | \
+trim_zeros > 1.packets
+$PYTHON "$top_srcdir/utilities/ovs-pcap.in" hv1/br-phys-tx.pcap | \
+trim_zeros > 2.packets
+
+cat ipv6_ns.expected | cut -c -112 > expout
+AT_CHECK([cat 1.packets | cut -c -112], [0], [expout])
+AT_CHECK([cat 2.packets | cut -c -112], [0], [expout])
+
+# Skipping the ICMPv6 checksum
+cat ipv6_ns.expected | cut -c 117- > expout
+AT_CHECK([cat 1.packets | cut -c 117-], [0], [expout])
+AT_CHECK([cat 2.packets | cut -c 117-], [0], [expout])
+
+OVN_CLEANUP([hv1])
+
+AT_CLEANUP
+
 AT_SETUP([ovn -- options:requested-chassis for logical port])
 ovn_start
 
