diff --git a/pkg/agent/agent.go b/pkg/agent/agent.go
index 7553e20fffe4a6abd039a67d0651c58274e882d4..cfab9ffce7ae8b157b271d7e381b5395fc88181f 100644
--- a/pkg/agent/agent.go
+++ b/pkg/agent/agent.go
@@ -422,7 +422,7 @@ func (f *Flows) buildAndStartPipeline(ctx context.Context) (*node.Terminal[[]*fl
 	rbTracer.SendsTo(accounter)
 
 	if f.cfg.Deduper == DeduperFirstCome {
-		deduper := node.AsMiddle(flow.Dedupe(f.cfg.DeduperFCExpiry, f.cfg.DeduperJustMark),
+		deduper := node.AsMiddle(flow.Dedupe(f.cfg.DeduperFCExpiry, f.cfg.DeduperJustMark, f.cfg.DeduperMerge),
 			node.ChannelBufferLen(f.cfg.BuffersLength))
 		mapTracer.SendsTo(deduper)
 		accounter.SendsTo(deduper)
diff --git a/pkg/agent/config.go b/pkg/agent/config.go
index 80d28bd53731ae481850fb9e030ab6e10ae64518..63edce4d3a4bfb03916ba430f0b3e39ff1c72a79 100644
--- a/pkg/agent/config.go
+++ b/pkg/agent/config.go
@@ -86,6 +86,8 @@ type Config struct {
 	DeduperFCExpiry time.Duration `env:"DEDUPER_FC_EXPIRY"`
 	// DeduperJustMark will just mark duplicates (boolean field) instead of dropping them.
 	DeduperJustMark bool `env:"DEDUPER_JUST_MARK"`
+	// DeduperMerge will merge duplicated flows and generate list of interfaces and direction pairs
+	DeduperMerge bool `env:"DEDUPER_MERGE" envDefault:"false"`
 	// Direction allows selecting which flows to trace according to its direction. Accepted values
 	// are "ingress", "egress" or "both" (default).
 	Direction string `env:"DIRECTION" envDefault:"both"`
diff --git a/pkg/decode/decode_protobuf.go b/pkg/decode/decode_protobuf.go
index 5a6bb15f44621900ca27c4d99888c77fb8b329c9..b3b05b5765d36c87dad3e4347dfb02d2d027f4ae 100644
--- a/pkg/decode/decode_protobuf.go
+++ b/pkg/decode/decode_protobuf.go
@@ -65,7 +65,12 @@ func PBFlowToMap(flow *pbflow.Record) config.GenericMap {
 	if flow.Packets != 0 {
 		out["Packets"] = flow.Packets
 	}
-
+	var interfaces []interface{}
+	var directions []interface{}
+	for _, entry := range flow.GetDupList() {
+		out["Interfaces"] = append([]interface{}{entry.Interface}, interfaces...)
+		out["FlowDirections"] = append([]interface{}{int(entry.Direction.Number())}, directions...)
+	}
 	ethType := ethernet.EtherType(flow.EthProtocol)
 	if ethType == ethernet.EtherTypeIPv4 || ethType == ethernet.EtherTypeIPv6 {
 		out["SrcAddr"] = ipToStr(flow.Network.GetSrcAddr())
diff --git a/pkg/decode/decode_protobuf_test.go b/pkg/decode/decode_protobuf_test.go
index 4c4aa4b6d8933a59d72f5f8ddb5a78d6eb5a8b57..8867d03fae878f0c669cdb2fd28907ca1ded1a9d 100644
--- a/pkg/decode/decode_protobuf_test.go
+++ b/pkg/decode/decode_protobuf_test.go
@@ -17,7 +17,13 @@ func TestPBFlowToMap(t *testing.T) {
 	someTime := time.Now()
 	var someDuration time.Duration = 10000000 // 10ms
 	flow := &pbflow.Record{
-		Interface:     "eth0",
+		Interface: "eth0",
+		DupList: []*pbflow.DupMapEntry{
+			{
+				Interface: "eth0",
+				Direction: pbflow.Direction_EGRESS,
+			},
+		},
 		EthProtocol:   2048,
 		Bytes:         456,
 		Packets:       123,
@@ -64,6 +70,7 @@ func TestPBFlowToMap(t *testing.T) {
 	delete(out, "TimeReceived")
 	assert.Equal(t, config.GenericMap{
 		"FlowDirection":          1,
+		"FlowDirections":         []interface{}{1},
 		"Bytes":                  uint64(456),
 		"SrcAddr":                "1.2.3.4",
 		"DstAddr":                "5.6.7.8",
@@ -78,6 +85,7 @@ func TestPBFlowToMap(t *testing.T) {
 		"Proto":                  uint32(6),
 		"TimeFlowStartMs":        someTime.UnixMilli(),
 		"TimeFlowEndMs":          someTime.UnixMilli(),
+		"Interfaces":             []interface{}{"eth0"},
 		"Interface":              "eth0",
 		"AgentIP":                "10.9.8.7",
 		"Flags":                  uint32(0x100),
diff --git a/pkg/exporter/kafka_proto_test.go b/pkg/exporter/kafka_proto_test.go
index 9bdb0b2b81fa97675ccf16254283c9f82783804f..00c8b65ffa567d0c676e3839acefdbec952af189 100644
--- a/pkg/exporter/kafka_proto_test.go
+++ b/pkg/exporter/kafka_proto_test.go
@@ -57,7 +57,10 @@ func TestProtoConversion(t *testing.T) {
 	var r pbflow.Record
 	require.NoError(t, proto.Unmarshal(wc.messages[0].Value, &r))
 	assert.EqualValues(t, 3, r.EthProtocol)
-	assert.EqualValues(t, 1, r.Direction)
+	for _, e := range r.DupList {
+		assert.EqualValues(t, 1, e.Direction)
+		assert.Equal(t, "veth0", e.Interface)
+	}
 	assert.EqualValues(t, uint64(0xaabbccddeeff), r.DataLink.SrcMac)
 	assert.EqualValues(t, uint64(0x112233445566), r.DataLink.DstMac)
 	assert.EqualValues(t, uint64(0xC0010203) /* 192.1.2.3 */, r.Network.SrcAddr.GetIpv4())
@@ -71,7 +74,6 @@ func TestProtoConversion(t *testing.T) {
 	assert.EqualValues(t, 789, r.Bytes)
 	assert.EqualValues(t, 987, r.Packets)
 	assert.EqualValues(t, uint16(1), r.Flags)
-	assert.Equal(t, "veth0", r.Interface)
 	assert.Equal(t, ByteArrayFromNetIP(net.ParseIP("127.3.2.1")), wc.messages[0].Key[0:16])
 	assert.Equal(t, ByteArrayFromNetIP(net.ParseIP("192.1.2.3")), wc.messages[0].Key[16:])
 }
diff --git a/pkg/exporter/proto.go b/pkg/exporter/proto.go
index 800971dc61db0704a80010d63b22ba69def71acc..4da92eab1998913c6b5a76be9aa6c8040a04b8a9 100644
--- a/pkg/exporter/proto.go
+++ b/pkg/exporter/proto.go
@@ -71,7 +71,7 @@ func v4FlowToPB(fr *flow.Record) *pbflow.Record {
 		Duplicate:              fr.Duplicate,
 		AgentIp:                agentIP(fr.AgentIP),
 		Flags:                  uint32(fr.Metrics.Flags),
-		Interface:              string(fr.Interface),
+		Interface:              fr.Interface,
 		PktDropBytes:           fr.Metrics.PktDrops.Bytes,
 		PktDropPackets:         uint64(fr.Metrics.PktDrops.Packets),
 		PktDropLatestFlags:     uint32(fr.Metrics.PktDrops.LatestFlags),
@@ -85,6 +85,13 @@ func v4FlowToPB(fr *flow.Record) *pbflow.Record {
 	if fr.Metrics.DnsRecord.Latency != 0 {
 		pbflowRecord.DnsLatency = durationpb.New(fr.DNSLatency)
 	}
+	pbflowRecord.DupList = make([]*pbflow.DupMapEntry, 0)
+	for _, m := range fr.DupList {
+		pbflowRecord.DupList = append(pbflowRecord.DupList, &pbflow.DupMapEntry{
+			Interface: fr.Interface,
+			Direction: pbflow.Direction(m[fr.Interface]),
+		})
+	}
 	return &pbflowRecord
 }
 
@@ -135,6 +142,13 @@ func v6FlowToPB(fr *flow.Record) *pbflow.Record {
 	if fr.Metrics.DnsRecord.Latency != 0 {
 		pbflowRecord.DnsLatency = durationpb.New(fr.DNSLatency)
 	}
+	pbflowRecord.DupList = make([]*pbflow.DupMapEntry, 0)
+	for _, m := range fr.DupList {
+		pbflowRecord.DupList = append(pbflowRecord.DupList, &pbflow.DupMapEntry{
+			Interface: fr.Interface,
+			Direction: pbflow.Direction(m[fr.Interface]),
+		})
+	}
 	return &pbflowRecord
 }
 
diff --git a/pkg/flow/account_test.go b/pkg/flow/account_test.go
index 1600549320e242b1dedfc1b3282a036a4ab8bed0..d275f914a76e89d6d398d2184687a0e800a26b62 100644
--- a/pkg/flow/account_test.go
+++ b/pkg/flow/account_test.go
@@ -109,6 +109,7 @@ func TestEvict_MaxEntries(t *testing.T) {
 			},
 			TimeFlowStart: now.Add(-(1000 - 123) * time.Nanosecond),
 			TimeFlowEnd:   now.Add(-(1000 - 789) * time.Nanosecond),
+			DupList:       make([]map[string]uint8, 0),
 		},
 		k2: {
 			RawRecord: RawRecord{
@@ -119,6 +120,7 @@ func TestEvict_MaxEntries(t *testing.T) {
 			},
 			TimeFlowStart: now.Add(-(1000 - 456) * time.Nanosecond),
 			TimeFlowEnd:   now.Add(-(1000 - 456) * time.Nanosecond),
+			DupList:       make([]map[string]uint8, 0),
 		},
 	}, received)
 }
@@ -187,6 +189,7 @@ func TestEvict_Period(t *testing.T) {
 		},
 		TimeFlowStart: now.Add(-1000 + 123),
 		TimeFlowEnd:   now.Add(-1000 + 789),
+		DupList:       make([]map[string]uint8, 0),
 	}, *records[0])
 	records = receiveTimeout(t, evictor)
 	require.Len(t, records, 1)
@@ -203,6 +206,7 @@ func TestEvict_Period(t *testing.T) {
 		},
 		TimeFlowStart: now.Add(-1000 + 1123),
 		TimeFlowEnd:   now.Add(-1000 + 1456),
+		DupList:       make([]map[string]uint8, 0),
 	}, *records[0])
 
 	// no more flows are evicted
diff --git a/pkg/flow/deduper.go b/pkg/flow/deduper.go
index cb1cca38f2808a8e8cc292d44bcb849aa2ab3955..bf48e58c57b370f9fa81fb07852f248912b0ed74 100644
--- a/pkg/flow/deduper.go
+++ b/pkg/flow/deduper.go
@@ -29,6 +29,7 @@ type entry struct {
 	dnsRecord  *ebpf.BpfDnsRecordT
 	ifIndex    uint32
 	expiryTime time.Time
+	dupList    *[]map[string]uint8
 }
 
 // Dedupe receives flows and filters these belonging to duplicate interfaces. It will forward
@@ -36,7 +37,7 @@ type entry struct {
 // (no activity for it during the expiration time)
 // The justMark argument tells that the deduper should not drop the duplicate flows but
 // set their Duplicate field.
-func Dedupe(expireTime time.Duration, justMark bool) func(in <-chan []*Record, out chan<- []*Record) {
+func Dedupe(expireTime time.Duration, justMark, mergeDup bool) func(in <-chan []*Record, out chan<- []*Record) {
 	cache := &deduperCache{
 		expire:  expireTime,
 		entries: list.New(),
@@ -47,7 +48,7 @@ func Dedupe(expireTime time.Duration, justMark bool) func(in <-chan []*Record, o
 			cache.removeExpired()
 			fwd := make([]*Record, 0, len(records))
 			for _, record := range records {
-				cache.checkDupe(record, justMark, &fwd)
+				cache.checkDupe(record, justMark, mergeDup, &fwd)
 			}
 			if len(fwd) > 0 {
 				out <- fwd
@@ -57,7 +58,8 @@ func Dedupe(expireTime time.Duration, justMark bool) func(in <-chan []*Record, o
 }
 
 // checkDupe check current record if its already available nad if not added to fwd records list
-func (c *deduperCache) checkDupe(r *Record, justMark bool, fwd *[]*Record) {
+func (c *deduperCache) checkDupe(r *Record, justMark, mergeDup bool, fwd *[]*Record) {
+	mergeEntry := make(map[string]uint8)
 	rk := r.Id
 	// zeroes fields from key that should be ignored from the flow comparison
 	rk.IfIndex = 0
@@ -86,6 +88,10 @@ func (c *deduperCache) checkDupe(r *Record, justMark bool, fwd *[]*Record) {
 				r.Duplicate = true
 				*fwd = append(*fwd, r)
 			}
+			if mergeDup {
+				mergeEntry[r.Interface] = r.Id.Direction
+				*fEntry.dupList = append(*fEntry.dupList, mergeEntry)
+			}
 			return
 		}
 		*fwd = append(*fwd, r)
@@ -99,6 +105,11 @@ func (c *deduperCache) checkDupe(r *Record, justMark bool, fwd *[]*Record) {
 		ifIndex:    r.Id.IfIndex,
 		expiryTime: timeNow().Add(c.expire),
 	}
+	if mergeDup {
+		mergeEntry[r.Interface] = r.Id.Direction
+		r.DupList = append(r.DupList, mergeEntry)
+		e.dupList = &r.DupList
+	}
 	c.ifaces[rk] = c.entries.PushFront(&e)
 	*fwd = append(*fwd, r)
 }
diff --git a/pkg/flow/deduper_test.go b/pkg/flow/deduper_test.go
index 7d6cf6cb2053a47a57d3da5db8dc06f854b91e0e..dfa51665ac2a85bad3d3132f1ee88b2e286a586b 100644
--- a/pkg/flow/deduper_test.go
+++ b/pkg/flow/deduper_test.go
@@ -56,7 +56,7 @@ func TestDedupe(t *testing.T) {
 	input := make(chan []*Record, 100)
 	output := make(chan []*Record, 100)
 
-	go Dedupe(time.Minute, false)(input, output)
+	go Dedupe(time.Minute, false, false)(input, output)
 
 	input <- []*Record{
 		oneIf2,   // record 1 at interface 2: should be accepted
@@ -89,7 +89,7 @@ func TestDedupe_EvictFlows(t *testing.T) {
 	input := make(chan []*Record, 100)
 	output := make(chan []*Record, 100)
 
-	go Dedupe(15*time.Second, false)(input, output)
+	go Dedupe(15*time.Second, false, false)(input, output)
 
 	// Should only accept records 1 and 2, at interface 1
 	input <- []*Record{oneIf1, twoIf1, oneIf2}
@@ -120,6 +120,21 @@ func TestDedupe_EvictFlows(t *testing.T) {
 		receiveTimeout(t, output))
 }
 
+func TestDedupeMerge(t *testing.T) {
+	input := make(chan []*Record, 100)
+	output := make(chan []*Record, 100)
+
+	go Dedupe(time.Minute, false, true)(input, output)
+
+	input <- []*Record{
+		oneIf2, // record 1 at interface 2: should be accepted
+		oneIf1,
+	}
+	deduped := receiveTimeout(t, output)
+	assert.Equal(t, []*Record{oneIf2}, deduped)
+	assert.Equal(t, 2, len(oneIf2.DupList))
+}
+
 type timerMock struct {
 	now time.Time
 }
diff --git a/pkg/flow/record.go b/pkg/flow/record.go
index 3be0b0d83ce1983e750a8ca62fe9149ad745ea97..8fc92138d46c9f7cb9de6ddbb14d8ad6e9bcb8e7 100644
--- a/pkg/flow/record.go
+++ b/pkg/flow/record.go
@@ -53,6 +53,7 @@ type Record struct {
 	AgentIP net.IP
 	// Calculated RTT which is set when record is created by calling NewRecord
 	TimeFlowRtt time.Duration
+	DupList     []map[string]uint8
 }
 
 func NewRecord(
@@ -78,6 +79,7 @@ func NewRecord(
 	if metrics.DnsRecord.Latency != 0 {
 		record.DNSLatency = time.Duration(metrics.DnsRecord.Latency)
 	}
+	record.DupList = make([]map[string]uint8, 0)
 	return &record
 }
 
diff --git a/pkg/grpc/grpc_test.go b/pkg/grpc/grpc_test.go
index d43af6db70ed54887510125d22d7bdd9215e8ed1..ff3824ca3c6df375dc320e70eaa61ef3c8fd5413 100644
--- a/pkg/grpc/grpc_test.go
+++ b/pkg/grpc/grpc_test.go
@@ -142,8 +142,12 @@ func BenchmarkIPv4GRPCCommunication(b *testing.B) {
 		EthProtocol: 2048,
 		Bytes:       456,
 		Flags:       1,
-
-		Direction:     pbflow.Direction_EGRESS,
+		DupList: []*pbflow.DupMapEntry{
+			{
+				Interface: "eth0",
+				Direction: pbflow.Direction_EGRESS,
+			},
+		},
 		TimeFlowStart: timestamppb.Now(),
 		TimeFlowEnd:   timestamppb.Now(),
 		Network: &pbflow.Network{
@@ -196,10 +200,15 @@ func BenchmarkIPv6GRPCCommunication(b *testing.B) {
 	client := cc.Client()
 
 	f := &pbflow.Record{
-		EthProtocol:   2048,
-		Bytes:         456,
-		Flags:         1,
-		Direction:     pbflow.Direction_EGRESS,
+		EthProtocol: 2048,
+		Bytes:       456,
+		Flags:       1,
+		DupList: []*pbflow.DupMapEntry{
+			{
+				Interface: "eth0",
+				Direction: pbflow.Direction_EGRESS,
+			},
+		},
 		TimeFlowStart: timestamppb.Now(),
 		TimeFlowEnd:   timestamppb.Now(),
 		Network: &pbflow.Network{
diff --git a/pkg/pbflow/flow.pb.go b/pkg/pbflow/flow.pb.go
index a0ed4ddcd1d9f1c9f0e09c7888ea9ee18a5614bb..7b51fab47961d77d99963c850536d61970322bea 100644
--- a/pkg/pbflow/flow.pb.go
+++ b/pkg/pbflow/flow.pb.go
@@ -156,6 +156,61 @@ func (x *Records) GetEntries() []*Record {
 	return nil
 }
 
+type DupMapEntry struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Interface string    `protobuf:"bytes,1,opt,name=interface,proto3" json:"interface,omitempty"`
+	Direction Direction `protobuf:"varint,2,opt,name=direction,proto3,enum=pbflow.Direction" json:"direction,omitempty"`
+}
+
+func (x *DupMapEntry) Reset() {
+	*x = DupMapEntry{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_proto_flow_proto_msgTypes[2]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *DupMapEntry) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*DupMapEntry) ProtoMessage() {}
+
+func (x *DupMapEntry) ProtoReflect() protoreflect.Message {
+	mi := &file_proto_flow_proto_msgTypes[2]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use DupMapEntry.ProtoReflect.Descriptor instead.
+func (*DupMapEntry) Descriptor() ([]byte, []int) {
+	return file_proto_flow_proto_rawDescGZIP(), []int{2}
+}
+
+func (x *DupMapEntry) GetInterface() string {
+	if x != nil {
+		return x.Interface
+	}
+	return ""
+}
+
+func (x *DupMapEntry) GetDirection() Direction {
+	if x != nil {
+		return x.Direction
+	}
+	return Direction_INGRESS
+}
+
 type Record struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -192,12 +247,13 @@ type Record struct {
 	DnsLatency             *durationpb.Duration `protobuf:"bytes,23,opt,name=dns_latency,json=dnsLatency,proto3" json:"dns_latency,omitempty"`
 	TimeFlowRtt            *durationpb.Duration `protobuf:"bytes,24,opt,name=time_flow_rtt,json=timeFlowRtt,proto3" json:"time_flow_rtt,omitempty"`
 	DnsErrno               uint32               `protobuf:"varint,25,opt,name=dns_errno,json=dnsErrno,proto3" json:"dns_errno,omitempty"`
+	DupList                []*DupMapEntry       `protobuf:"bytes,26,rep,name=dup_list,json=dupList,proto3" json:"dup_list,omitempty"`
 }
 
 func (x *Record) Reset() {
 	*x = Record{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_proto_flow_proto_msgTypes[2]
+		mi := &file_proto_flow_proto_msgTypes[3]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -210,7 +266,7 @@ func (x *Record) String() string {
 func (*Record) ProtoMessage() {}
 
 func (x *Record) ProtoReflect() protoreflect.Message {
-	mi := &file_proto_flow_proto_msgTypes[2]
+	mi := &file_proto_flow_proto_msgTypes[3]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -223,7 +279,7 @@ func (x *Record) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use Record.ProtoReflect.Descriptor instead.
 func (*Record) Descriptor() ([]byte, []int) {
-	return file_proto_flow_proto_rawDescGZIP(), []int{2}
+	return file_proto_flow_proto_rawDescGZIP(), []int{3}
 }
 
 func (x *Record) GetEthProtocol() uint32 {
@@ -401,6 +457,13 @@ func (x *Record) GetDnsErrno() uint32 {
 	return 0
 }
 
+func (x *Record) GetDupList() []*DupMapEntry {
+	if x != nil {
+		return x.DupList
+	}
+	return nil
+}
+
 type DataLink struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -413,7 +476,7 @@ type DataLink struct {
 func (x *DataLink) Reset() {
 	*x = DataLink{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_proto_flow_proto_msgTypes[3]
+		mi := &file_proto_flow_proto_msgTypes[4]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -426,7 +489,7 @@ func (x *DataLink) String() string {
 func (*DataLink) ProtoMessage() {}
 
 func (x *DataLink) ProtoReflect() protoreflect.Message {
-	mi := &file_proto_flow_proto_msgTypes[3]
+	mi := &file_proto_flow_proto_msgTypes[4]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -439,7 +502,7 @@ func (x *DataLink) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use DataLink.ProtoReflect.Descriptor instead.
 func (*DataLink) Descriptor() ([]byte, []int) {
-	return file_proto_flow_proto_rawDescGZIP(), []int{3}
+	return file_proto_flow_proto_rawDescGZIP(), []int{4}
 }
 
 func (x *DataLink) GetSrcMac() uint64 {
@@ -469,7 +532,7 @@ type Network struct {
 func (x *Network) Reset() {
 	*x = Network{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_proto_flow_proto_msgTypes[4]
+		mi := &file_proto_flow_proto_msgTypes[5]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -482,7 +545,7 @@ func (x *Network) String() string {
 func (*Network) ProtoMessage() {}
 
 func (x *Network) ProtoReflect() protoreflect.Message {
-	mi := &file_proto_flow_proto_msgTypes[4]
+	mi := &file_proto_flow_proto_msgTypes[5]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -495,7 +558,7 @@ func (x *Network) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use Network.ProtoReflect.Descriptor instead.
 func (*Network) Descriptor() ([]byte, []int) {
-	return file_proto_flow_proto_rawDescGZIP(), []int{4}
+	return file_proto_flow_proto_rawDescGZIP(), []int{5}
 }
 
 func (x *Network) GetSrcAddr() *IP {
@@ -534,7 +597,7 @@ type IP struct {
 func (x *IP) Reset() {
 	*x = IP{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_proto_flow_proto_msgTypes[5]
+		mi := &file_proto_flow_proto_msgTypes[6]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -547,7 +610,7 @@ func (x *IP) String() string {
 func (*IP) ProtoMessage() {}
 
 func (x *IP) ProtoReflect() protoreflect.Message {
-	mi := &file_proto_flow_proto_msgTypes[5]
+	mi := &file_proto_flow_proto_msgTypes[6]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -560,7 +623,7 @@ func (x *IP) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use IP.ProtoReflect.Descriptor instead.
 func (*IP) Descriptor() ([]byte, []int) {
-	return file_proto_flow_proto_rawDescGZIP(), []int{5}
+	return file_proto_flow_proto_rawDescGZIP(), []int{6}
 }
 
 func (m *IP) GetIpFamily() isIP_IpFamily {
@@ -615,7 +678,7 @@ type Transport struct {
 func (x *Transport) Reset() {
 	*x = Transport{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_proto_flow_proto_msgTypes[6]
+		mi := &file_proto_flow_proto_msgTypes[7]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -628,7 +691,7 @@ func (x *Transport) String() string {
 func (*Transport) ProtoMessage() {}
 
 func (x *Transport) ProtoReflect() protoreflect.Message {
-	mi := &file_proto_flow_proto_msgTypes[6]
+	mi := &file_proto_flow_proto_msgTypes[7]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -641,7 +704,7 @@ func (x *Transport) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use Transport.ProtoReflect.Descriptor instead.
 func (*Transport) Descriptor() ([]byte, []int) {
-	return file_proto_flow_proto_rawDescGZIP(), []int{6}
+	return file_proto_flow_proto_rawDescGZIP(), []int{7}
 }
 
 func (x *Transport) GetSrcPort() uint32 {
@@ -678,100 +741,109 @@ var file_proto_flow_proto_rawDesc = []byte{
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 }
 
 var (
@@ -787,39 +859,42 @@ func file_proto_flow_proto_rawDescGZIP() []byte {
 }
 
 var file_proto_flow_proto_enumTypes = make([]protoimpl.EnumInfo, 1)
-var file_proto_flow_proto_msgTypes = make([]protoimpl.MessageInfo, 7)
+var file_proto_flow_proto_msgTypes = make([]protoimpl.MessageInfo, 8)
 var file_proto_flow_proto_goTypes = []interface{}{
 	(Direction)(0),                // 0: pbflow.Direction
 	(*CollectorReply)(nil),        // 1: pbflow.CollectorReply
 	(*Records)(nil),               // 2: pbflow.Records
-	(*Record)(nil),                // 3: pbflow.Record
-	(*DataLink)(nil),              // 4: pbflow.DataLink
-	(*Network)(nil),               // 5: pbflow.Network
-	(*IP)(nil),                    // 6: pbflow.IP
-	(*Transport)(nil),             // 7: pbflow.Transport
-	(*timestamppb.Timestamp)(nil), // 8: google.protobuf.Timestamp
-	(*durationpb.Duration)(nil),   // 9: google.protobuf.Duration
+	(*DupMapEntry)(nil),           // 3: pbflow.DupMapEntry
+	(*Record)(nil),                // 4: pbflow.Record
+	(*DataLink)(nil),              // 5: pbflow.DataLink
+	(*Network)(nil),               // 6: pbflow.Network
+	(*IP)(nil),                    // 7: pbflow.IP
+	(*Transport)(nil),             // 8: pbflow.Transport
+	(*timestamppb.Timestamp)(nil), // 9: google.protobuf.Timestamp
+	(*durationpb.Duration)(nil),   // 10: google.protobuf.Duration
 }
 var file_proto_flow_proto_depIdxs = []int32{
-	3,  // 0: pbflow.Records.entries:type_name -> pbflow.Record
-	0,  // 1: pbflow.Record.direction:type_name -> pbflow.Direction
-	8,  // 2: pbflow.Record.time_flow_start:type_name -> google.protobuf.Timestamp
-	8,  // 3: pbflow.Record.time_flow_end:type_name -> google.protobuf.Timestamp
-	4,  // 4: pbflow.Record.data_link:type_name -> pbflow.DataLink
-	5,  // 5: pbflow.Record.network:type_name -> pbflow.Network
-	7,  // 6: pbflow.Record.transport:type_name -> pbflow.Transport
-	6,  // 7: pbflow.Record.agent_ip:type_name -> pbflow.IP
-	9,  // 8: pbflow.Record.dns_latency:type_name -> google.protobuf.Duration
-	9,  // 9: pbflow.Record.time_flow_rtt:type_name -> google.protobuf.Duration
-	6,  // 10: pbflow.Network.src_addr:type_name -> pbflow.IP
-	6,  // 11: pbflow.Network.dst_addr:type_name -> pbflow.IP
-	2,  // 12: pbflow.Collector.Send:input_type -> pbflow.Records
-	1,  // 13: pbflow.Collector.Send:output_type -> pbflow.CollectorReply
-	13, // [13:14] is the sub-list for method output_type
-	12, // [12:13] is the sub-list for method input_type
-	12, // [12:12] is the sub-list for extension type_name
-	12, // [12:12] is the sub-list for extension extendee
-	0,  // [0:12] is the sub-list for field type_name
+	4,  // 0: pbflow.Records.entries:type_name -> pbflow.Record
+	0,  // 1: pbflow.DupMapEntry.direction:type_name -> pbflow.Direction
+	0,  // 2: pbflow.Record.direction:type_name -> pbflow.Direction
+	9,  // 3: pbflow.Record.time_flow_start:type_name -> google.protobuf.Timestamp
+	9,  // 4: pbflow.Record.time_flow_end:type_name -> google.protobuf.Timestamp
+	5,  // 5: pbflow.Record.data_link:type_name -> pbflow.DataLink
+	6,  // 6: pbflow.Record.network:type_name -> pbflow.Network
+	8,  // 7: pbflow.Record.transport:type_name -> pbflow.Transport
+	7,  // 8: pbflow.Record.agent_ip:type_name -> pbflow.IP
+	10, // 9: pbflow.Record.dns_latency:type_name -> google.protobuf.Duration
+	10, // 10: pbflow.Record.time_flow_rtt:type_name -> google.protobuf.Duration
+	3,  // 11: pbflow.Record.dup_list:type_name -> pbflow.DupMapEntry
+	7,  // 12: pbflow.Network.src_addr:type_name -> pbflow.IP
+	7,  // 13: pbflow.Network.dst_addr:type_name -> pbflow.IP
+	2,  // 14: pbflow.Collector.Send:input_type -> pbflow.Records
+	1,  // 15: pbflow.Collector.Send:output_type -> pbflow.CollectorReply
+	15, // [15:16] is the sub-list for method output_type
+	14, // [14:15] is the sub-list for method input_type
+	14, // [14:14] is the sub-list for extension type_name
+	14, // [14:14] is the sub-list for extension extendee
+	0,  // [0:14] is the sub-list for field type_name
 }
 
 func init() { file_proto_flow_proto_init() }
@@ -853,7 +928,7 @@ func file_proto_flow_proto_init() {
 			}
 		}
 		file_proto_flow_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*Record); i {
+			switch v := v.(*DupMapEntry); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -865,7 +940,7 @@ func file_proto_flow_proto_init() {
 			}
 		}
 		file_proto_flow_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*DataLink); i {
+			switch v := v.(*Record); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -877,7 +952,7 @@ func file_proto_flow_proto_init() {
 			}
 		}
 		file_proto_flow_proto_msgTypes[4].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*Network); i {
+			switch v := v.(*DataLink); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -889,7 +964,7 @@ func file_proto_flow_proto_init() {
 			}
 		}
 		file_proto_flow_proto_msgTypes[5].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*IP); i {
+			switch v := v.(*Network); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -901,6 +976,18 @@ func file_proto_flow_proto_init() {
 			}
 		}
 		file_proto_flow_proto_msgTypes[6].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*IP); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_proto_flow_proto_msgTypes[7].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*Transport); i {
 			case 0:
 				return &v.state
@@ -913,7 +1000,7 @@ func file_proto_flow_proto_init() {
 			}
 		}
 	}
-	file_proto_flow_proto_msgTypes[5].OneofWrappers = []interface{}{
+	file_proto_flow_proto_msgTypes[6].OneofWrappers = []interface{}{
 		(*IP_Ipv4)(nil),
 		(*IP_Ipv6)(nil),
 	}
@@ -923,7 +1010,7 @@ func file_proto_flow_proto_init() {
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_proto_flow_proto_rawDesc,
 			NumEnums:      1,
-			NumMessages:   7,
+			NumMessages:   8,
 			NumExtensions: 0,
 			NumServices:   1,
 		},
diff --git a/proto/flow.proto b/proto/flow.proto
index bf3209caf69e4dba21578d578fcf17d7e5341e88..6c758c2228a7e5580108150620f028d83b861743 100644
--- a/proto/flow.proto
+++ b/proto/flow.proto
@@ -18,6 +18,10 @@ message Records {
   repeated Record entries = 1;
 }
 
+message DupMapEntry {
+  string interface = 1;
+  Direction direction = 2;
+}
 message Record {
   // protocol as defined by ETH_P_* in linux/if_ether.h
   // https://github.com/torvalds/linux/blob/master/include/uapi/linux/if_ether.h
@@ -34,7 +38,7 @@ message Record {
   uint64 bytes = 8;
   uint64 packets = 9;
   string interface = 10;
-
+  
   // if true, the same flow has been recorded via another interface.
   // From all the duplicate flows, one will set this value to false and the rest will be true.
   bool duplicate = 11;
@@ -54,6 +58,7 @@ message Record {
   google.protobuf.Duration dns_latency = 23;
   google.protobuf.Duration time_flow_rtt = 24;
   uint32 dns_errno = 25;
+  repeated DupMapEntry dup_list = 26;
 }
 
 message DataLink {