diff --git a/tools/testing/selftests/net/openvswitch/openvswitch.sh b/tools/testing/selftests/net/openvswitch/openvswitch.sh
index f75ee723415a..853dbc1b00d7 100755
--- a/tools/testing/selftests/net/openvswitch/openvswitch.sh
+++ b/tools/testing/selftests/net/openvswitch/openvswitch.sh
@@ -33,6 +33,7 @@ tests="
 	flow_set				flow-set: Flow modify
 	action_set				set: SET action rewrites fields
 	trunc					trunc: output truncation
+	icmpv6					icmpv6: ICMPv6 echo type match
 	psample					psample: Sampling packets with psample"
 
 info() {
@@ -530,6 +531,86 @@ test_trunc() {
 	return 0
 }
 
+# icmpv6 test
+# - static neighbours to bypass NDP (nud permanent)
+# - icmpv6(type=128) echo request, icmpv6(type=129) echo reply
+# - remove flows and verify ping fails, reinstall and recover
+test_icmpv6() {
+	local t="test_icmpv6"
+	local v6="eth_type(0x86dd),ipv6(proto=58)"
+
+	sbx_add "$t" || return $?
+	ovs_add_dp "$t" icmpv6 || return 1
+
+	info "create namespaces"
+	for ns in client server; do
+		ovs_add_netns_and_veths "$t" "icmpv6" \
+		    "$ns" "${ns:0:1}0" "${ns:0:1}1" || return 1
+	done
+
+	ip netns exec client ip addr add fd00::1/64 dev c1 nodad
+	ip netns exec client ip link set c1 up
+	ip netns exec server ip addr add fd00::2/64 dev s1 nodad
+	ip netns exec server ip link set s1 up
+
+	local cl_mac sl_mac
+	cl_mac=$(ip netns exec client ip link show c1 \
+	    | awk '/link\/ether/ {print $2}')
+	[ -z "$cl_mac" ] && \
+	    { info "failed to get c1 hwaddr"; return 1; }
+	sl_mac=$(ip netns exec server ip link show s1 \
+	    | awk '/link\/ether/ {print $2}')
+	[ -z "$sl_mac" ] && \
+	    { info "failed to get s1 hwaddr"; return 1; }
+	ip netns exec client ip -6 neigh add fd00::2 \
+	    lladdr "$sl_mac" nud permanent dev c1 || return 1
+	ip netns exec server ip -6 neigh add fd00::1 \
+	    lladdr "$cl_mac" nud permanent dev s1 || return 1
+
+	# Probe: check if kernel supports icmpv6 flow key.
+	ovs_add_flow "$t" icmpv6 \
+	    "in_port(1),eth(),$v6,icmpv6(type=128)" \
+	    '2' &>/dev/null
+	if [ $? -ne 0 ]; then
+		info "no support for icmpv6 key - skipping"
+		ovs_exit_sig
+		return $ksft_skip
+	fi
+	ovs_del_flows "$t" icmpv6
+
+	ovs_add_flow "$t" icmpv6 \
+	    "in_port(1),eth(),$v6,icmpv6(type=128)" \
+	    '2' || return 1
+	ovs_add_flow "$t" icmpv6 \
+	    "in_port(2),eth(),$v6,icmpv6(type=129)" \
+	    '1' || return 1
+
+	info "verify ICMPv6 echo with type-specific flows"
+	ovs_sbx "$t" ip netns exec client \
+	    ping -6 -c 1 -W 2 fd00::2 || return 1
+
+	ovs_del_flows "$t" icmpv6
+
+	info "verify ping fails without echo flows"
+	ovs_sbx "$t" ip netns exec client \
+	    ping -6 -c 1 -W 2 fd00::2 >/dev/null 2>&1 \
+	    && { info "ping should fail without flows"
+	         return 1; }
+
+	ovs_add_flow "$t" icmpv6 \
+	    "in_port(1),eth(),$v6,icmpv6(type=128)" \
+	    '2' || return 1
+	ovs_add_flow "$t" icmpv6 \
+	    "in_port(2),eth(),$v6,icmpv6(type=129)" \
+	    '1' || return 1
+
+	info "verify connectivity restored"
+	ovs_sbx "$t" ip netns exec client \
+	    ping -6 -c 1 -W 2 fd00::2 || return 1
+
+	return 0
+}
+
 # psample test
 # - use psample to observe packets
 test_psample() {
diff --git a/tools/testing/selftests/net/openvswitch/ovs-dpctl.py b/tools/testing/selftests/net/openvswitch/ovs-dpctl.py
index e1ecfad2c03e..f3edd198223f 100644
--- a/tools/testing/selftests/net/openvswitch/ovs-dpctl.py
+++ b/tools/testing/selftests/net/openvswitch/ovs-dpctl.py
@@ -1255,11 +1255,16 @@ class ovskey(nla):
                 lambda x: ipaddress.IPv6Address(x).packed if x else 0,
                 convert_ipv6,
             ),
-            ("label", "label", "%d", lambda x: int(x) if x else 0),
-            ("proto", "proto", "%d", lambda x: int(x) if x else 0),
-            ("tclass", "tclass", "%d", lambda x: int(x) if x else 0),
-            ("hlimit", "hlimit", "%d", lambda x: int(x) if x else 0),
-            ("frag", "frag", "%d", lambda x: int(x) if x else 0),
+            ("label", "label", "%d", lambda x: int(x) if x else 0,
+                convert_int(20)),
+            ("proto", "proto", "%d", lambda x: int(x) if x else 0,
+                convert_int(8)),
+            ("tclass", "tclass", "%d", lambda x: int(x) if x else 0,
+                convert_int(8)),
+            ("hlimit", "hlimit", "%d", lambda x: int(x) if x else 0,
+                convert_int(8)),
+            ("frag", "frag", "%d", lambda x: int(x) if x else 0,
+                convert_int(8)),
         )
 
         def __init__(
@@ -1344,8 +1349,10 @@ class ovskey(nla):
         )
 
         fields_map = (
-            ("type", "type", "%d", lambda x: int(x) if x else 0),
-            ("code", "code", "%d", lambda x: int(x) if x else 0),
+            ("type", "type", "%d", lambda x: int(x) if x else 0,
+                convert_int(8)),
+            ("code", "code", "%d", lambda x: int(x) if x else 0,
+                convert_int(8)),
         )
 
         def __init__(
@@ -1982,6 +1989,11 @@ class ovskey(nla):
                 "icmp",
                 ovskey.ovs_key_icmp,
             ),
+            (
+                "OVS_KEY_ATTR_ICMPV6",
+                "icmpv6",
+                ovskey.ovs_key_icmpv6,
+            ),
             (
                 "OVS_KEY_ATTR_TCP_FLAGS",
                 "tcp_flags",