diff --git a/modules/core/04-channel/v2/types/codec.go b/modules/core/04-channel/v2/types/codec.go
new file mode 100644
index 00000000000..a040c437472
--- /dev/null
+++ b/modules/core/04-channel/v2/types/codec.go
@@ -0,0 +1,15 @@
+package types
+
+import (
+	codectypes "github.com/cosmos/cosmos-sdk/codec/types"
+	sdk "github.com/cosmos/cosmos-sdk/types"
+)
+
+// RegisterInterfaces register the ibc channel submodule interfaces to protobuf
+// Any.
+func RegisterInterfaces(registry codectypes.InterfaceRegistry) {
+	registry.RegisterImplementations(
+		(*sdk.Msg)(nil),
+		&MsgSendPacket{},
+	)
+}
diff --git a/modules/core/04-channel/v2/types/tx.pb.go b/modules/core/04-channel/v2/types/tx.pb.go
new file mode 100644
index 00000000000..331825c0dff
--- /dev/null
+++ b/modules/core/04-channel/v2/types/tx.pb.go
@@ -0,0 +1,687 @@
+// Code generated by protoc-gen-gogo. DO NOT EDIT.
+// source: ibc/core/channel/v2/tx.proto
+
+package types
+
+import (
+	context "context"
+	fmt "fmt"
+	_ "github.com/cosmos/cosmos-sdk/types/msgservice"
+	_ "github.com/cosmos/gogoproto/gogoproto"
+	grpc1 "github.com/cosmos/gogoproto/grpc"
+	proto "github.com/cosmos/gogoproto/proto"
+	grpc "google.golang.org/grpc"
+	codes "google.golang.org/grpc/codes"
+	status "google.golang.org/grpc/status"
+	io "io"
+	math "math"
+	math_bits "math/bits"
+)
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the proto package it is being compiled against.
+// A compilation error at this line likely means your copy of the
+// proto package needs to be updated.
+const _ = proto.GoGoProtoPackageIsVersion3 // please upgrade the proto package
+
+// MsgSendPacket sends an outgoing IBC packet.
+type MsgSendPacket struct {
+	SourceId         string       `protobuf:"bytes,1,opt,name=source_id,json=sourceId,proto3" json:"source_id,omitempty"`
+	TimeoutTimestamp uint64       `protobuf:"varint,2,opt,name=timeout_timestamp,json=timeoutTimestamp,proto3" json:"timeout_timestamp,omitempty"`
+	PacketData       []PacketData `protobuf:"bytes,3,rep,name=packet_data,json=packetData,proto3" json:"packet_data"`
+	Signer           string       `protobuf:"bytes,4,opt,name=signer,proto3" json:"signer,omitempty"`
+}
+
+func (m *MsgSendPacket) Reset()         { *m = MsgSendPacket{} }
+func (m *MsgSendPacket) String() string { return proto.CompactTextString(m) }
+func (*MsgSendPacket) ProtoMessage()    {}
+func (*MsgSendPacket) Descriptor() ([]byte, []int) {
+	return fileDescriptor_d421c7119e969b99, []int{0}
+}
+func (m *MsgSendPacket) XXX_Unmarshal(b []byte) error {
+	return m.Unmarshal(b)
+}
+func (m *MsgSendPacket) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	if deterministic {
+		return xxx_messageInfo_MsgSendPacket.Marshal(b, m, deterministic)
+	} else {
+		b = b[:cap(b)]
+		n, err := m.MarshalToSizedBuffer(b)
+		if err != nil {
+			return nil, err
+		}
+		return b[:n], nil
+	}
+}
+func (m *MsgSendPacket) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_MsgSendPacket.Merge(m, src)
+}
+func (m *MsgSendPacket) XXX_Size() int {
+	return m.Size()
+}
+func (m *MsgSendPacket) XXX_DiscardUnknown() {
+	xxx_messageInfo_MsgSendPacket.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_MsgSendPacket proto.InternalMessageInfo
+
+// MsgSendPacketResponse defines the Msg/SendPacket response type.
+type MsgSendPacketResponse struct {
+	Sequence uint64 `protobuf:"varint,1,opt,name=sequence,proto3" json:"sequence,omitempty"`
+}
+
+func (m *MsgSendPacketResponse) Reset()         { *m = MsgSendPacketResponse{} }
+func (m *MsgSendPacketResponse) String() string { return proto.CompactTextString(m) }
+func (*MsgSendPacketResponse) ProtoMessage()    {}
+func (*MsgSendPacketResponse) Descriptor() ([]byte, []int) {
+	return fileDescriptor_d421c7119e969b99, []int{1}
+}
+func (m *MsgSendPacketResponse) XXX_Unmarshal(b []byte) error {
+	return m.Unmarshal(b)
+}
+func (m *MsgSendPacketResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	if deterministic {
+		return xxx_messageInfo_MsgSendPacketResponse.Marshal(b, m, deterministic)
+	} else {
+		b = b[:cap(b)]
+		n, err := m.MarshalToSizedBuffer(b)
+		if err != nil {
+			return nil, err
+		}
+		return b[:n], nil
+	}
+}
+func (m *MsgSendPacketResponse) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_MsgSendPacketResponse.Merge(m, src)
+}
+func (m *MsgSendPacketResponse) XXX_Size() int {
+	return m.Size()
+}
+func (m *MsgSendPacketResponse) XXX_DiscardUnknown() {
+	xxx_messageInfo_MsgSendPacketResponse.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_MsgSendPacketResponse proto.InternalMessageInfo
+
+func init() {
+	proto.RegisterType((*MsgSendPacket)(nil), "ibc.core.channel.v2.MsgSendPacket")
+	proto.RegisterType((*MsgSendPacketResponse)(nil), "ibc.core.channel.v2.MsgSendPacketResponse")
+}
+
+func init() { proto.RegisterFile("ibc/core/channel/v2/tx.proto", fileDescriptor_d421c7119e969b99) }
+
+var fileDescriptor_d421c7119e969b99 = []byte{
+	// 400 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xe2, 0x92, 0xc9, 0x4c, 0x4a, 0xd6,
+	0x4f, 0xce, 0x2f, 0x4a, 0xd5, 0x4f, 0xce, 0x48, 0xcc, 0xcb, 0x4b, 0xcd, 0xd1, 0x2f, 0x33, 0xd2,
+	0x2f, 0xa9, 0xd0, 0x2b, 0x28, 0xca, 0x2f, 0xc9, 0x17, 0x12, 0xce, 0x4c, 0x4a, 0xd6, 0x03, 0xc9,
+	0xea, 0x41, 0x65, 0xf5, 0xca, 0x8c, 0xa4, 0x44, 0xd2, 0xf3, 0xd3, 0xf3, 0xc1, 0xf2, 0xfa, 0x20,
+	0x16, 0x44, 0xa9, 0x94, 0x78, 0x72, 0x7e, 0x71, 0x6e, 0x7e, 0xb1, 0x7e, 0x6e, 0x71, 0xba, 0x7e,
+	0x99, 0x21, 0x88, 0x82, 0x4a, 0x28, 0x62, 0xb3, 0x01, 0x66, 0x1c, 0x58, 0x89, 0xd2, 0x29, 0x46,
+	0x2e, 0x5e, 0xdf, 0xe2, 0xf4, 0xe0, 0xd4, 0xbc, 0x94, 0x80, 0xc4, 0xe4, 0xec, 0xd4, 0x12, 0x21,
+	0x69, 0x2e, 0xce, 0xe2, 0xfc, 0xd2, 0xa2, 0xe4, 0xd4, 0xf8, 0xcc, 0x14, 0x09, 0x46, 0x05, 0x46,
+	0x0d, 0xce, 0x20, 0x0e, 0x88, 0x80, 0x67, 0x8a, 0x90, 0x36, 0x97, 0x60, 0x49, 0x66, 0x6e, 0x6a,
+	0x7e, 0x69, 0x49, 0x3c, 0x88, 0x2e, 0x2e, 0x49, 0xcc, 0x2d, 0x90, 0x60, 0x52, 0x60, 0xd4, 0x60,
+	0x09, 0x12, 0x80, 0x4a, 0x84, 0xc0, 0xc4, 0x85, 0xdc, 0xb8, 0xb8, 0x0b, 0xc0, 0x66, 0xc6, 0xa7,
+	0x24, 0x96, 0x24, 0x4a, 0x30, 0x2b, 0x30, 0x6b, 0x70, 0x1b, 0xc9, 0xeb, 0x61, 0xf1, 0x98, 0x1e,
+	0xc4, 0x6e, 0x97, 0xc4, 0x92, 0x44, 0x27, 0x96, 0x13, 0xf7, 0xe4, 0x19, 0x82, 0xb8, 0x0a, 0xe0,
+	0x22, 0x42, 0x62, 0x5c, 0x6c, 0xc5, 0x99, 0xe9, 0x79, 0xa9, 0x45, 0x12, 0x2c, 0x60, 0xe7, 0x40,
+	0x79, 0x56, 0xfc, 0x1d, 0x0b, 0xe4, 0x19, 0x9a, 0x9e, 0x6f, 0xd0, 0x82, 0x0a, 0x28, 0x59, 0x72,
+	0x89, 0xa2, 0xf8, 0x25, 0x28, 0xb5, 0xb8, 0x20, 0x3f, 0xaf, 0x38, 0x55, 0x48, 0x8a, 0x8b, 0xa3,
+	0x38, 0xb5, 0xb0, 0x34, 0x35, 0x2f, 0x39, 0x15, 0xec, 0x25, 0x96, 0x20, 0x38, 0xdf, 0x8a, 0x05,
+	0x64, 0x8a, 0x51, 0x01, 0x17, 0x27, 0x44, 0x8f, 0x6f, 0x71, 0xba, 0x50, 0x0c, 0x17, 0x17, 0x52,
+	0x80, 0x28, 0x61, 0x75, 0x31, 0x8a, 0x45, 0x52, 0x5a, 0x84, 0xd5, 0xc0, 0x1c, 0x23, 0xc5, 0xda,
+	0xf0, 0x7c, 0x83, 0x16, 0xa3, 0x53, 0xd8, 0x89, 0x47, 0x72, 0x8c, 0x17, 0x1e, 0xc9, 0x31, 0x3e,
+	0x78, 0x24, 0xc7, 0x38, 0xe1, 0xb1, 0x1c, 0xc3, 0x85, 0xc7, 0x72, 0x0c, 0x37, 0x1e, 0xcb, 0x31,
+	0x44, 0xd9, 0xa4, 0x67, 0x96, 0x64, 0x94, 0x26, 0xe9, 0x25, 0xe7, 0xe7, 0xea, 0x43, 0xa3, 0x36,
+	0x33, 0x29, 0x59, 0x37, 0x3d, 0x5f, 0xbf, 0xcc, 0x52, 0x3f, 0x37, 0x3f, 0xa5, 0x34, 0x27, 0xb5,
+	0x18, 0x12, 0xad, 0x06, 0x26, 0xba, 0xc8, 0x69, 0xa7, 0xb2, 0x20, 0xb5, 0x38, 0x89, 0x0d, 0x1c,
+	0xb1, 0xc6, 0x80, 0x00, 0x00, 0x00, 0xff, 0xff, 0x42, 0x5d, 0x9d, 0x69, 0x5f, 0x02, 0x00, 0x00,
+}
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ context.Context
+var _ grpc.ClientConn
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the grpc package it is being compiled against.
+const _ = grpc.SupportPackageIsVersion4
+
+// PacketMsgClient is the client API for PacketMsg service.
+//
+// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://godoc.org/google.golang.org/grpc#ClientConn.NewStream.
+type PacketMsgClient interface {
+	// SendPacket defines a rpc handler method for MsgSendPacket.
+	SendPacket(ctx context.Context, in *MsgSendPacket, opts ...grpc.CallOption) (*MsgSendPacketResponse, error)
+}
+
+type packetMsgClient struct {
+	cc grpc1.ClientConn
+}
+
+func NewPacketMsgClient(cc grpc1.ClientConn) PacketMsgClient {
+	return &packetMsgClient{cc}
+}
+
+func (c *packetMsgClient) SendPacket(ctx context.Context, in *MsgSendPacket, opts ...grpc.CallOption) (*MsgSendPacketResponse, error) {
+	out := new(MsgSendPacketResponse)
+	err := c.cc.Invoke(ctx, "/ibc.core.channel.v2.PacketMsg/SendPacket", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+// PacketMsgServer is the server API for PacketMsg service.
+type PacketMsgServer interface {
+	// SendPacket defines a rpc handler method for MsgSendPacket.
+	SendPacket(context.Context, *MsgSendPacket) (*MsgSendPacketResponse, error)
+}
+
+// UnimplementedPacketMsgServer can be embedded to have forward compatible implementations.
+type UnimplementedPacketMsgServer struct {
+}
+
+func (*UnimplementedPacketMsgServer) SendPacket(ctx context.Context, req *MsgSendPacket) (*MsgSendPacketResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method SendPacket not implemented")
+}
+
+func RegisterPacketMsgServer(s grpc1.Server, srv PacketMsgServer) {
+	s.RegisterService(&_PacketMsg_serviceDesc, srv)
+}
+
+func _PacketMsg_SendPacket_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(MsgSendPacket)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(PacketMsgServer).SendPacket(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/ibc.core.channel.v2.PacketMsg/SendPacket",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(PacketMsgServer).SendPacket(ctx, req.(*MsgSendPacket))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+var _PacketMsg_serviceDesc = grpc.ServiceDesc{
+	ServiceName: "ibc.core.channel.v2.PacketMsg",
+	HandlerType: (*PacketMsgServer)(nil),
+	Methods: []grpc.MethodDesc{
+		{
+			MethodName: "SendPacket",
+			Handler:    _PacketMsg_SendPacket_Handler,
+		},
+	},
+	Streams:  []grpc.StreamDesc{},
+	Metadata: "ibc/core/channel/v2/tx.proto",
+}
+
+func (m *MsgSendPacket) Marshal() (dAtA []byte, err error) {
+	size := m.Size()
+	dAtA = make([]byte, size)
+	n, err := m.MarshalToSizedBuffer(dAtA[:size])
+	if err != nil {
+		return nil, err
+	}
+	return dAtA[:n], nil
+}
+
+func (m *MsgSendPacket) MarshalTo(dAtA []byte) (int, error) {
+	size := m.Size()
+	return m.MarshalToSizedBuffer(dAtA[:size])
+}
+
+func (m *MsgSendPacket) MarshalToSizedBuffer(dAtA []byte) (int, error) {
+	i := len(dAtA)
+	_ = i
+	var l int
+	_ = l
+	if len(m.Signer) > 0 {
+		i -= len(m.Signer)
+		copy(dAtA[i:], m.Signer)
+		i = encodeVarintTx(dAtA, i, uint64(len(m.Signer)))
+		i--
+		dAtA[i] = 0x22
+	}
+	if len(m.PacketData) > 0 {
+		for iNdEx := len(m.PacketData) - 1; iNdEx >= 0; iNdEx-- {
+			{
+				size, err := m.PacketData[iNdEx].MarshalToSizedBuffer(dAtA[:i])
+				if err != nil {
+					return 0, err
+				}
+				i -= size
+				i = encodeVarintTx(dAtA, i, uint64(size))
+			}
+			i--
+			dAtA[i] = 0x1a
+		}
+	}
+	if m.TimeoutTimestamp != 0 {
+		i = encodeVarintTx(dAtA, i, uint64(m.TimeoutTimestamp))
+		i--
+		dAtA[i] = 0x10
+	}
+	if len(m.SourceId) > 0 {
+		i -= len(m.SourceId)
+		copy(dAtA[i:], m.SourceId)
+		i = encodeVarintTx(dAtA, i, uint64(len(m.SourceId)))
+		i--
+		dAtA[i] = 0xa
+	}
+	return len(dAtA) - i, nil
+}
+
+func (m *MsgSendPacketResponse) Marshal() (dAtA []byte, err error) {
+	size := m.Size()
+	dAtA = make([]byte, size)
+	n, err := m.MarshalToSizedBuffer(dAtA[:size])
+	if err != nil {
+		return nil, err
+	}
+	return dAtA[:n], nil
+}
+
+func (m *MsgSendPacketResponse) MarshalTo(dAtA []byte) (int, error) {
+	size := m.Size()
+	return m.MarshalToSizedBuffer(dAtA[:size])
+}
+
+func (m *MsgSendPacketResponse) MarshalToSizedBuffer(dAtA []byte) (int, error) {
+	i := len(dAtA)
+	_ = i
+	var l int
+	_ = l
+	if m.Sequence != 0 {
+		i = encodeVarintTx(dAtA, i, uint64(m.Sequence))
+		i--
+		dAtA[i] = 0x8
+	}
+	return len(dAtA) - i, nil
+}
+
+func encodeVarintTx(dAtA []byte, offset int, v uint64) int {
+	offset -= sovTx(v)
+	base := offset
+	for v >= 1<<7 {
+		dAtA[offset] = uint8(v&0x7f | 0x80)
+		v >>= 7
+		offset++
+	}
+	dAtA[offset] = uint8(v)
+	return base
+}
+func (m *MsgSendPacket) Size() (n int) {
+	if m == nil {
+		return 0
+	}
+	var l int
+	_ = l
+	l = len(m.SourceId)
+	if l > 0 {
+		n += 1 + l + sovTx(uint64(l))
+	}
+	if m.TimeoutTimestamp != 0 {
+		n += 1 + sovTx(uint64(m.TimeoutTimestamp))
+	}
+	if len(m.PacketData) > 0 {
+		for _, e := range m.PacketData {
+			l = e.Size()
+			n += 1 + l + sovTx(uint64(l))
+		}
+	}
+	l = len(m.Signer)
+	if l > 0 {
+		n += 1 + l + sovTx(uint64(l))
+	}
+	return n
+}
+
+func (m *MsgSendPacketResponse) Size() (n int) {
+	if m == nil {
+		return 0
+	}
+	var l int
+	_ = l
+	if m.Sequence != 0 {
+		n += 1 + sovTx(uint64(m.Sequence))
+	}
+	return n
+}
+
+func sovTx(x uint64) (n int) {
+	return (math_bits.Len64(x|1) + 6) / 7
+}
+func sozTx(x uint64) (n int) {
+	return sovTx(uint64((x << 1) ^ uint64((int64(x) >> 63))))
+}
+func (m *MsgSendPacket) Unmarshal(dAtA []byte) error {
+	l := len(dAtA)
+	iNdEx := 0
+	for iNdEx < l {
+		preIndex := iNdEx
+		var wire uint64
+		for shift := uint(0); ; shift += 7 {
+			if shift >= 64 {
+				return ErrIntOverflowTx
+			}
+			if iNdEx >= l {
+				return io.ErrUnexpectedEOF
+			}
+			b := dAtA[iNdEx]
+			iNdEx++
+			wire |= uint64(b&0x7F) << shift
+			if b < 0x80 {
+				break
+			}
+		}
+		fieldNum := int32(wire >> 3)
+		wireType := int(wire & 0x7)
+		if wireType == 4 {
+			return fmt.Errorf("proto: MsgSendPacket: wiretype end group for non-group")
+		}
+		if fieldNum <= 0 {
+			return fmt.Errorf("proto: MsgSendPacket: illegal tag %d (wire type %d)", fieldNum, wire)
+		}
+		switch fieldNum {
+		case 1:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field SourceId", wireType)
+			}
+			var stringLen uint64
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowTx
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				stringLen |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			intStringLen := int(stringLen)
+			if intStringLen < 0 {
+				return ErrInvalidLengthTx
+			}
+			postIndex := iNdEx + intStringLen
+			if postIndex < 0 {
+				return ErrInvalidLengthTx
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.SourceId = string(dAtA[iNdEx:postIndex])
+			iNdEx = postIndex
+		case 2:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field TimeoutTimestamp", wireType)
+			}
+			m.TimeoutTimestamp = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowTx
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.TimeoutTimestamp |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 3:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field PacketData", wireType)
+			}
+			var msglen int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowTx
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				msglen |= int(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if msglen < 0 {
+				return ErrInvalidLengthTx
+			}
+			postIndex := iNdEx + msglen
+			if postIndex < 0 {
+				return ErrInvalidLengthTx
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.PacketData = append(m.PacketData, PacketData{})
+			if err := m.PacketData[len(m.PacketData)-1].Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
+				return err
+			}
+			iNdEx = postIndex
+		case 4:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Signer", wireType)
+			}
+			var stringLen uint64
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowTx
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				stringLen |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			intStringLen := int(stringLen)
+			if intStringLen < 0 {
+				return ErrInvalidLengthTx
+			}
+			postIndex := iNdEx + intStringLen
+			if postIndex < 0 {
+				return ErrInvalidLengthTx
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.Signer = string(dAtA[iNdEx:postIndex])
+			iNdEx = postIndex
+		default:
+			iNdEx = preIndex
+			skippy, err := skipTx(dAtA[iNdEx:])
+			if err != nil {
+				return err
+			}
+			if (skippy < 0) || (iNdEx+skippy) < 0 {
+				return ErrInvalidLengthTx
+			}
+			if (iNdEx + skippy) > l {
+				return io.ErrUnexpectedEOF
+			}
+			iNdEx += skippy
+		}
+	}
+
+	if iNdEx > l {
+		return io.ErrUnexpectedEOF
+	}
+	return nil
+}
+func (m *MsgSendPacketResponse) Unmarshal(dAtA []byte) error {
+	l := len(dAtA)
+	iNdEx := 0
+	for iNdEx < l {
+		preIndex := iNdEx
+		var wire uint64
+		for shift := uint(0); ; shift += 7 {
+			if shift >= 64 {
+				return ErrIntOverflowTx
+			}
+			if iNdEx >= l {
+				return io.ErrUnexpectedEOF
+			}
+			b := dAtA[iNdEx]
+			iNdEx++
+			wire |= uint64(b&0x7F) << shift
+			if b < 0x80 {
+				break
+			}
+		}
+		fieldNum := int32(wire >> 3)
+		wireType := int(wire & 0x7)
+		if wireType == 4 {
+			return fmt.Errorf("proto: MsgSendPacketResponse: wiretype end group for non-group")
+		}
+		if fieldNum <= 0 {
+			return fmt.Errorf("proto: MsgSendPacketResponse: illegal tag %d (wire type %d)", fieldNum, wire)
+		}
+		switch fieldNum {
+		case 1:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Sequence", wireType)
+			}
+			m.Sequence = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowTx
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.Sequence |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		default:
+			iNdEx = preIndex
+			skippy, err := skipTx(dAtA[iNdEx:])
+			if err != nil {
+				return err
+			}
+			if (skippy < 0) || (iNdEx+skippy) < 0 {
+				return ErrInvalidLengthTx
+			}
+			if (iNdEx + skippy) > l {
+				return io.ErrUnexpectedEOF
+			}
+			iNdEx += skippy
+		}
+	}
+
+	if iNdEx > l {
+		return io.ErrUnexpectedEOF
+	}
+	return nil
+}
+func skipTx(dAtA []byte) (n int, err error) {
+	l := len(dAtA)
+	iNdEx := 0
+	depth := 0
+	for iNdEx < l {
+		var wire uint64
+		for shift := uint(0); ; shift += 7 {
+			if shift >= 64 {
+				return 0, ErrIntOverflowTx
+			}
+			if iNdEx >= l {
+				return 0, io.ErrUnexpectedEOF
+			}
+			b := dAtA[iNdEx]
+			iNdEx++
+			wire |= (uint64(b) & 0x7F) << shift
+			if b < 0x80 {
+				break
+			}
+		}
+		wireType := int(wire & 0x7)
+		switch wireType {
+		case 0:
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return 0, ErrIntOverflowTx
+				}
+				if iNdEx >= l {
+					return 0, io.ErrUnexpectedEOF
+				}
+				iNdEx++
+				if dAtA[iNdEx-1] < 0x80 {
+					break
+				}
+			}
+		case 1:
+			iNdEx += 8
+		case 2:
+			var length int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return 0, ErrIntOverflowTx
+				}
+				if iNdEx >= l {
+					return 0, io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				length |= (int(b) & 0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if length < 0 {
+				return 0, ErrInvalidLengthTx
+			}
+			iNdEx += length
+		case 3:
+			depth++
+		case 4:
+			if depth == 0 {
+				return 0, ErrUnexpectedEndOfGroupTx
+			}
+			depth--
+		case 5:
+			iNdEx += 4
+		default:
+			return 0, fmt.Errorf("proto: illegal wireType %d", wireType)
+		}
+		if iNdEx < 0 {
+			return 0, ErrInvalidLengthTx
+		}
+		if depth == 0 {
+			return iNdEx, nil
+		}
+	}
+	return 0, io.ErrUnexpectedEOF
+}
+
+var (
+	ErrInvalidLengthTx        = fmt.Errorf("proto: negative length found during unmarshaling")
+	ErrIntOverflowTx          = fmt.Errorf("proto: integer overflow")
+	ErrUnexpectedEndOfGroupTx = fmt.Errorf("proto: unexpected end of group")
+)
diff --git a/modules/core/types/codec.go b/modules/core/types/codec.go
index 28b008ce3f6..d805413f912 100644
--- a/modules/core/types/codec.go
+++ b/modules/core/types/codec.go
@@ -6,6 +6,7 @@ import (
 	clienttypes "github.com/cosmos/ibc-go/v9/modules/core/02-client/types"
 	connectiontypes "github.com/cosmos/ibc-go/v9/modules/core/03-connection/types"
 	channeltypes "github.com/cosmos/ibc-go/v9/modules/core/04-channel/types"
+	channeltypesv2 "github.com/cosmos/ibc-go/v9/modules/core/04-channel/v2/types"
 	commitmenttypes "github.com/cosmos/ibc-go/v9/modules/core/23-commitment/types"
 	packetservertypes "github.com/cosmos/ibc-go/v9/modules/core/packet-server/types"
 )
@@ -18,4 +19,6 @@ func RegisterInterfaces(registry codectypes.InterfaceRegistry) {
 	channeltypes.RegisterInterfaces(registry)
 	packetservertypes.RegisterInterfaces(registry)
 	commitmenttypes.RegisterInterfaces(registry)
+
+	channeltypesv2.RegisterInterfaces(registry)
 }
diff --git a/proto/ibc/core/channel/v2/tx.proto b/proto/ibc/core/channel/v2/tx.proto
new file mode 100644
index 00000000000..f6537b16aaf
--- /dev/null
+++ b/proto/ibc/core/channel/v2/tx.proto
@@ -0,0 +1,35 @@
+syntax = "proto3";
+
+package ibc.core.channel.v2;
+
+option go_package = "github.com/cosmos/ibc-go/v9/modules/core/04-channel/v2/types";
+
+import "gogoproto/gogo.proto";
+import "cosmos/msg/v1/msg.proto";
+import "ibc/core/channel/v2/channel.proto";
+
+// PacketMsg defines the ibc/channel PacketMsg service.
+service PacketMsg {
+  option (cosmos.msg.v1.service) = true;
+
+  // SendPacket defines a rpc handler method for MsgSendPacket.
+  rpc SendPacket(MsgSendPacket) returns (MsgSendPacketResponse);
+}
+
+// MsgSendPacket sends an outgoing IBC packet.
+message MsgSendPacket {
+  option (cosmos.msg.v1.signer)      = "signer";
+  option (gogoproto.goproto_getters) = false;
+
+  string              source_id         = 1;
+  uint64              timeout_timestamp = 2;
+  repeated PacketData packet_data       = 3 [(gogoproto.nullable) = false];
+  string              signer            = 4;
+}
+
+// MsgSendPacketResponse defines the Msg/SendPacket response type.
+message MsgSendPacketResponse {
+  option (gogoproto.goproto_getters) = false;
+
+  uint64 sequence = 1;
+}