Create an IPsec-VPN connection using CreateVpnConnection - VPN Gateway - Alibaba Cloud - VPN Gateway

Creates an IPsec-VPN connection by calling the CreateVpnConnection operation.

Operation description

If the VPN gateway instance supports creating IPsec-VPN connections in dual-tunnel mode, the CreateVpnConnection operation supports the following request parameters in addition to the required parameters:

ClientToken, Name, EffectImmediately, AutoConfigRoute, Tags array, TunnelOptionsSpecification array, and EnableTunnelsBgp.

For information about the regions and zones that support IPsec-VPN connections in dual-tunnel mode, see Upgrade an IPsec-VPN connection to dual-tunnel mode.

ClientToken, CustomerGatewayId, Name, EffectImmediately, IkeConfig, IpsecConfig, HealthCheckConfig, AutoConfigRoute, EnableDpd, EnableNatTraversal, BgpConfig, RemoteCaCertificate, and Tags array.
CreateVpnConnection is an asynchronous operation. After you send a request, the system returns an instance ID, but the IPsec-VPN connection has not been created yet. The creation task is still running in the background. You can call DescribeVpnGateway to query the status of the VPN gateway instance and determine the creation status of the IPsec-VPN connection:
- If the VPN gateway instance is in the updating state, the IPsec-VPN connection is being created.
- If the VPN gateway instance is in the active state, the IPsec-VPN connection has been created.
The CreateVpnConnection operation does not support concurrent creation of IPsec-VPN connections under the same VPN gateway.

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RAM authorization

The table below describes the authorization required to call this API. You can define it in a Resource Access Management (RAM) policy. The table's columns are detailed below:

Action: The actions can be used in the Action element of RAM permission policy statements to grant permissions to perform the operation.
API: The API that you can call to perform the action.
Access level: The predefined level of access granted for each API. Valid values: create, list, get, update, and delete.
Resource type: The type of the resource that supports authorization to perform the action. It indicates if the action supports resource-level permission. The specified resource must be compatible with the action. Otherwise, the policy will be ineffective.
- For APIs with resource-level permissions, required resource types are marked with an asterisk (*). Specify the corresponding Alibaba Cloud Resource Name (ARN) in the Resource element of the policy.
- For APIs without resource-level permissions, it is shown as All Resources. Use an asterisk (*) in the Resource element of the policy.
Condition key: The condition keys defined by the service. The key allows for granular control, applying to either actions alone or actions associated with specific resources. In addition to service-specific condition keys, Alibaba Cloud provides a set of common condition keys applicable across all RAM-supported services.
Dependent action: The dependent actions required to run the action. To complete the action, the RAM user or the RAM role must have the permissions to perform all dependent actions.

Action

Access level

Resource type

Condition key

Dependent action

vpc:CreateVpnConnection

create

*CustomerGateway

acs:vpc:{#regionId}:{#accountId}:customergateway/{#CustomerGatewayId}

*VpnConnection

acs:vpc:{#regionId}:{#accountId}:vpnconnection/*

*VpnGateway

acs:vpc:{#regionId}:{#accountId}:vpngateway/{#VpnGatewayId}

None

Request parameters

Parameter	Type	Required	Description	Example
RegionId	string	Yes	The region ID of the IPsec-VPN connection. You can call DescribeRegions to query the most recent region list.	cn-shanghai
ClientToken	string	No	The client token that is used to ensure the idempotence of the request. You can use the client to generate the token, but you must make sure that the token is unique among different requests. The token can contain only ASCII characters. Note If you do not specify this parameter, the system automatically uses the RequestId of the API request as the ClientToken. The RequestId of each API request is different.	02fb3da4-130e-11e9-8e44-001****
CustomerGatewayId	string	No	This parameter is supported and required when you create an IPsec-VPN connection in single-tunnel mode.	cgw-p0w2jemrcj5u61un8****
VpnGatewayId	string	Yes	The instance ID of the VPN gateway.	vpn-bp1q8bgx4xnkm****
Name	string	No	The name of the IPsec-VPN connection. The name must be 1 to 100 characters in length and cannot start with `http://` or `https://`.	IPsec
LocalSubnet	string	Yes	The CIDR block on the VPC side that needs to communicate with the on-premises data center. This is used for Phase 2 negotiation. Separate multiple CIDR blocks with commas (,). Example: 192.168.1.0/24,192.168.2.0/24. Description of the routing mode for the IPsec-VPN connection: If both LocalSubnet and RemoteSubnet are set to 0.0.0.0/0, the destination routing mode is used. If both LocalSubnet and RemoteSubnet are set to specific CIDR blocks, the protected data flow mode is used.	10.10.1.0/24,10.10.2.0/24
RemoteSubnet	string	Yes	The CIDR block of the on-premises data center that needs to communicate with the VPC. This is used for Phase 2 negotiation. Separate multiple CIDR blocks with commas (,). Example: 192.168.3.0/24,192.168.4.0/24. Description of the routing mode for the IPsec-VPN connection: If both LocalSubnet and RemoteSubnet are set to 0.0.0.0/0, the destination routing mode is used. If both LocalSubnet and RemoteSubnet are set to specific CIDR blocks, the protected data flow mode is used.	10.10.3.0/24,10.10.4.0/24
EffectImmediately	boolean	No	Specifies whether the IPsec-VPN connection configuration takes effect immediately. Valid values:	false
IkeConfig	string	No	This parameter is supported when you create an IPsec-VPN connection in single-tunnel mode. Phase 1 negotiation configuration: IkeConfig.Psk: The pre-shared key used for identity authentication between the VPN gateway and the on-premises data center. The key must be 1 to 100 characters in length and can contain digits, uppercase letters, lowercase letters, and the following characters. It cannot contain spaces. ~!\`@#$%^&()_-+={}[]\|;:',.<>/? If you do not specify a pre-shared key, the system generates a random string as the pre-shared key. You can call the DescribeVpnConnection operation to query the pre-shared key automatically generated by the system. Note* The pre-shared key on the IPsec-VPN connection side must be the same as the authentication key on the on-premises data center side. Otherwise, a connection cannot be established between the on-premises data center and the VPN gateway. IkeConfig.IkeVersion: The version of the Internet Key Exchange protocol. Valid values: ikev1 and ikev2. Default value: ikev1. Compared with IKEv1, IKEv2 simplifies the SA negotiation process and provides better support for multi-CIDR-block scenarios. IkeConfig.IkeMode: The negotiation mode of the IKE version. Valid values: main and aggressive. Default value: main. main: Main mode. This mode offers high negotiation security. aggressive: Aggressive mode. This mode supports rapid negotiation and a higher success rate. IkeConfig.IkeEncAlg: The encryption algorithm used in Phase 1 negotiation. Valid values: aes, aes192, aes256, des, and 3des. Default value: aes. IkeConfig.IkeAuthAlg: The authentication algorithm used in Phase 1 negotiation. Valid values: md5, sha1, sha256, sha384, and sha512. Default value: md5. IkeConfig.IkePfs: The Diffie-Hellman key exchange algorithm used in Phase 1 negotiation. Valid values: group1, group2, group5, and group14. Default value: group2. IkeConfig.IkeLifetime: The lifetime of the SA generated in Phase 1 negotiation. Unit: seconds. Valid values: 0 to 86400. Default value: 86400. IkeConfig.LocalId: The identifier of the VPN gateway. The value is limited to 100 characters and cannot contain spaces. Default value: the IP address of the VPN gateway. IkeConfig.RemoteId: The identifier of the customer gateway. The value is limited to 100 characters and cannot contain spaces. Default value: the IP address of the customer gateway.	{"Psk":"1234****","IkeVersion":"ikev1","IkeMode":"main","IkeEncAlg":"aes","IkeAuthAlg":"sha1","IkePfs":"group2","IkeLifetime":86400,"LocalId":"47.XX.XX.1","RemoteId":"47.XX.XX.2"}
IpsecConfig	string	No	This parameter is supported when you create an IPsec-VPN connection in single-tunnel mode. The Phase 2 negotiation configuration: IpsecConfig.IpsecEncAlg: The encryption algorithm used in Phase 2 negotiation. Valid values: aes, aes192, aes256, des, or 3des. Default value: aes. IpsecConfig.IpsecAuthAlg: The authentication algorithm used in Phase 2 negotiation. Valid values: md5, sha1, sha256, sha384, sha512. Default value: md5. IpsecConfig.IpsecPfs: The Diffie-Hellman key exchange algorithm used in Phase 2 negotiation. Valid values: disabled, group1, group2, group5, group14. Default value: group2. IpsecConfig.IpsecLifetime: The lifetime of the SA negotiated in Phase 2. Unit: seconds. Valid values: 0 to 86400. Default value: 86400.	{"IpsecEncAlg":"aes","IpsecAuthAlg":"sha1","IpsecPfs":"group2","IpsecLifetime":86400}
HealthCheckConfig	string	No	This parameter is supported when you create an IPsec-VPN connection in single-tunnel mode. Health check configuration: HealthCheckConfig.enable: Specifies whether to enable health checks. Valid values: true or false (default). HealthCheckConfig.dip: The destination IP address of the health check. HealthCheckConfig.sip: The source IP address of the health check. HealthCheckConfig.interval: The retry interval of the health check. Unit: seconds. Default value: 3. HealthCheckConfig.retry: The number of retry packets sent for the health check. Default value: 3.	{"enable":"true","dip":"192.168.10.1","sip":"10.10.1.1","interval":"3","retry":"3"}
AutoConfigRoute	boolean	No	Specifies whether to automatically configure routes. Valid values: true (default): Automatically configures routes. false: Does not automatically configure routes.	true
EnableDpd	boolean	No	This parameter is supported when you create an IPsec-VPN connection in single-tunnel mode. Specifies whether to enable the Dead Peer Detection (DPD) feature. Valid values: true (default): DPD is enabled. The IPsec initiator sends DPD packets to check whether the peer device is alive. If no correct response is received within the specified period of time, the peer is considered disconnected. The ISAKMP SA and the corresponding IPsec SA are deleted, and the security tunnel is also deleted. false: DPD is disabled. The IPsec initiator does not send DPD probe packets.	true
EnableNatTraversal	boolean	No	This parameter is supported when you create an IPsec-VPN connection in single-tunnel mode. Specifies whether to enable NAT traversal. Valid values: true (default): Enables NAT traversal. After NAT traversal is enabled, the IKE negotiation process skips UDP port number verification and can discover NAT gateway devices in the VPN tunnel. false: Disables NAT traversal.	true
BgpConfig	string	No	This parameter is supported when you create an IPsec-VPN connection in single-tunnel mode. The BGP configuration: BgpConfig.EnableBgp: specifies whether to enable BGP. Valid values: true or false (default). BgpConfig.LocalAsn: the autonomous system number (ASN) on the Alibaba Cloud side. Valid values: 1 to 4294967295. Default value: 45104. You can enter the ASN in the two-segment notation: the first 16 bits.the last 16 bits. Each segment is entered in decimal format. For example, if you enter 123.456, the ASN is 123 × 65536 + 456 = 8061384. BgpConfig.TunnelCidr: the CIDR block of the IPsec tunnel. The CIDR block must be a /30 subnet within 169.254.0.0/16 and cannot be 169.254.0.0/30, 169.254.1.0/30, 169.254.2.0/30, 169.254.3.0/30, 169.254.4.0/30, 169.254.5.0/30, 169.254.6.0/30, or 169.254.169.252/30. Note The IPsec tunnel CIDR block of each IPsec-VPN connection under a VPN gateway instance must be unique. LocalBgpIp: the BGP IP address on the Alibaba Cloud side. This address must be an IP address within the IPsec tunnel CIDR block. Note Before you configure BGP, we recommend that you learn about how BGP dynamic routing works and its limits. For more information, see Configure BGP dynamic routing. We recommend that you use a private ASN to establish a BGP connection with Alibaba Cloud. Refer to the relevant documentation for the private ASN range.	{"EnableBgp":"true","LocalAsn":"45104","TunnelCidr":"169.254.11.0/30","LocalBgpIp":"169.254.11.1"}
RemoteCaCertificate	string	No	This parameter is supported when you create an IPsec-VPN connection in single-tunnel mode.	-----BEGIN CERTIFICATE----- MIIB7zCCAZW**** -----END CERTIFICATE-----
Tags	array<object>	No	The list of tags to add to the IPsec-VPN connection.
	object	No	The tag information.
Key	string	No	The tag key. This value cannot be an empty string. The tag key can be up to 64 characters in length. It cannot start with `aliyun` or `acs:`, and cannot contain `http://` or `https://`. You can specify up to 20 tag keys at a time.	TagKey
Value	string	No	The tag value. The tag value can be up to 128 characters in length and can be an empty string. It cannot start with `aliyun` or `acs:`, and cannot contain `http://` or `https://`. Each tag key corresponds to one tag value. You can specify up to 20 tag values at a time.	TagValue
TunnelOptionsSpecification	array<object>	No	The tunnel configurations.
	array<object>	No	The tunnel configuration information.
CustomerGatewayId	string	No	The ID of the customer gateway associated with the tunnel.	cgw-p0wy363lucf1uyae8****
EnableDpd	boolean	No	Specifies whether to enable the Dead Peer Detection (DPD) feature for the tunnel. Valid values: true (default): Enables the DPD feature. The IPsec initiator sends DPD packets to check whether the peer device is alive. If no correct response is received within the specified period of time, the peer is considered disconnected. The ISAKMP SA and the corresponding IPsec SA are deleted, and the security tunnel is also deleted. false: Disables the DPD feature. The IPsec initiator does not send DPD packets.	true
EnableNatTraversal	boolean	No	Specifies whether to enable NAT traversal for the tunnel. Valid values: true (default): NAT traversal is enabled. After NAT traversal is enabled, the IKE negotiation process skips UDP port number verification and automatically discovers NAT gateway devices along the tunnel. false: NAT traversal is disabled.	true
RemoteCaCertificate	string	No	If the current VPN gateway instance is a Chinese SM-based VPN gateway, you must configure the peer CA certificate for the tunnel.	-----BEGIN CERTIFICATE----- MIIB7zCCAZW**** -----END CERTIFICATE-----
Role	string	No	The role of the tunnel. Valid values:	master
TunnelBgpConfig	object	No	The BGP configuration for the tunnel.
LocalAsn	integer	No	The autonomous system number (ASN) on the Alibaba Cloud side of the tunnel. Valid values: 1 to 4294967295. Default value: 45104. Note This parameter is required when BGP is enabled for the IPsec-VPN connection (the EnableTunnelsBgp parameter is set to true). Before you configure BGP, we recommend that you familiarize yourself with how BGP dynamic routing works and its limits. For more information, see Configure BGP dynamic routing. Use a private ASN to establish a BGP connection with Alibaba Cloud. Refer to the relevant documentation for the private ASN range.	65530
LocalBgpIp	string	No	The BGP address of the local end (Alibaba Cloud side) of the tunnel. The address is an IP address within the BGP CIDR block.	169.254.10.1
TunnelCidr	string	No	The BGP CIDR block of the tunnel. The CIDR block must be a /30 CIDR block within 169.254.0.0/16 and cannot be 169.254.0.0/30, 169.254.1.0/30, 169.254.2.0/30, 169.254.3.0/30, 169.254.4.0/30, 169.254.5.0/30, 169.254.6.0/30, or 169.254.169.252/30. Note Within a VPN gateway instance, the BGP CIDR block of each tunnel must be unique.	169.254.10.0/30
TunnelIkeConfig	object	No	The Phase 1 negotiation configuration.
IkeAuthAlg	string	No	The authentication algorithm used in Phase 1 negotiations. Valid values: md5, sha1, sha256, sha384, and sha512. Default value: md5.	md5
IkeEncAlg	string	No	The encryption algorithm used in phase 1 negotiations. Valid values: aes, aes192, aes256, des, or 3des. Default value: aes.	aes
IkeLifetime	integer	No	The lifetime of the Security Association (SA) negotiated in Phase 1. Unit: seconds. Valid values: 0 to 86400. Default value: 86400.	86400
IkeMode	string	No	The negotiation mode of the IKE version. Valid values: main or aggressive. Default value: main. main: Main mode. This mode offers high security during negotiations. aggressive: Aggressive mode. This mode offers fast negotiations with a high success rate.	main
IkePfs	string	No	The Diffie-Hellman key exchange algorithm used in the first-phase negotiation. Default value: group2. Valid values: group1, group2, group5, group14.	group2
IkeVersion	string	No	The version of the IKE protocol. Valid values: ikev1 or ikev2. Default value: ikev1. Compared with IKEv1, IKEv2 simplifies the SA negotiation process and provides better support for multi-CIDR-block scenarios.	ikev1
LocalId	string	No	The identifier of the local end (Alibaba Cloud side) of the tunnel, which is used for Phase 1 negotiation. The value can be up to 100 characters in length and cannot contain spaces. The default value is the IP address of the tunnel.	47.21.XX.XX
Psk	string	No	The pre-shared key, which is used for identity authentication between the tunnel and the tunnel peer. The key must be 1 to 100 characters in length and can contain digits, uppercase letters, lowercase letters, and the following characters. It cannot contain spaces. ~!\`@#$%^&()_-+={}[]\|;:',.<>/? If you do not specify a pre-shared key, the system randomly generates a 16-character string as the pre-shared key. You can call the DescribeVpnConnection operation to query the pre-shared key automatically generated by the system. Note* The pre-shared keys of the tunnel and the tunnel peer must be the same. Otherwise, the tunnel cannot be established.	123456****
RemoteId	string	No	The identifier of the tunnel peer, which is used for Phase 1 negotiation. The value can be up to 100 characters in length and cannot contain spaces. The default value is the IP address of the customer gateway associated with the tunnel.	47.42.XX.XX
TunnelIpsecConfig	object	No	The Phase 2 negotiation configuration.
IpsecAuthAlg	string	No	The authentication algorithm used in Phase 2 negotiations. Valid values: md5, sha1, sha256, sha384, and sha512. Default value: md5.	md5
IpsecEncAlg	string	No	The encryption algorithm used in Phase 2 negotiations. Valid values: aes, aes192, aes256, des, or 3des. Default value: aes.	aes
IpsecLifetime	integer	No	The lifetime of the SA negotiated in Phase 2. Unit: seconds. Valid values: 0 to 86400. Default value: 86400.	86400
IpsecPfs	string	No	The Diffie-Hellman key exchange algorithm used in the second phase of negotiation. Default value: group2. Valid values: disabled, group1, group2, group5, group14.	group2
EnableTunnelsBgp	boolean	No	This parameter is supported when you create a dual-tunnel IPsec-VPN connection. Specifies whether to enable BGP for the tunnel. Valid values: true or false (default).	true
DryRun	boolean	No	Specifies whether to perform a dry run. Valid values:	false

Response elements

Element	Type	Description	Example
	object	The response parameters.
RequestId	string	The request ID.	082AD562-B8DB-4BB2-861F-DA1FCA01FD76
VpnConnectionId	string	The ID of the IPsec-VPN connection.	vco-bp15oes1py4i6****
Name	string	The name of the IPsec-VPN connection.	test
CreateTime	integer	The timestamp when the IPsec-VPN connection was created. Unit: milliseconds. The timestamp is in the UNIX timestamp format, which represents the number of milliseconds that have elapsed since January 1, 1970, 00:00:00 UTC.	1544666102000

Examples

Success response

JSON format

{
  "RequestId": "082AD562-B8DB-4BB2-861F-DA1FCA01FD76",
  "VpnConnectionId": "vco-bp15oes1py4i6****",
  "Name": "test",
  "CreateTime": 1544666102000
}

Error codes

HTTP status code	Error code	Error message	Description
400	Resource.QuotaFull	The quota of resource is full
400	InvalidVpnConnection.AlreadyExists	Vpn connection already exists.
400	VpnGateway.Configuring	The specified service is configuring.
400	VpnGateway.FinancialLocked	The specified service is financial locked.
400	VpnGateway.IpsecVpnDisabled	The vpn gateway does not enable IPSec VPN.	The IPsec-VPN feature is not enabled for the VPN gateway.
400	VpnRouteEntry.AlreadyExists	The specified route entry is already exist.	The route already exists.
400	VpnRouteEntry.Conflict	The specified route entry has conflict.	Route conflicts exist.
400	NotSupportVpnConnectionParameter.IpsecPfs	The specified vpn connection ipsec Ipsec Pfs is not support.	The PFS parameter set for the IPsec-VPN connection is not supported.
400	NotSupportVpnConnectionParameter.IpsecAuthAlg	The specified vpn connection ipsec Auth Alg is not support.	The authentication algorithm specified for the IPsec-VPN connection is not supported.
400	VpnRouteEntry.ConflictSSL	The specified route entry has conflict with SSL client.	The route conflicts with the SSL client.
400	VpnRouteEntry.BackupRoute	Validate backup route entry failed.	Active/standby routes failed authentication.
400	VpnRouteEntry.InvalidWeight	Invalid route entry weight value.	The weight specified for the route is invalid.
400	InvalidParameter.VpnConnectionName	The specified vpn connection name is invalid.	The VPN connection name does not meet the requirements.
400	OperationUnsupported.SetDPD	Current version of the VPN does not support setting DPD.	The VPN gateway version does not support DPD.
400	OperationUnsupported.SetNatTraversal	Current version of the VPN does not support setting NAT traversal.	The VPN gateway version does not support NAT traversal.
400	QuotaExceeded.PolicyBasedRoute	The maximum number of policy-based routes is exceeded. Existing routes: %s. Routes to be created: %s. Maximum routes: %s.	The quota of policy-based routes is reached. Existing routes: %s. Routes to be created: %s. Quota: %s.
400	MissingParameter.TunnelCidr	The parameter TunnelCidr is mandatory when BGP is enabled.	You must specify the tunnel CIDR block when you enable BGP.
400	OperationUnsupported.EnableBgp	Current version of the VPN does not support enable BGP.	The current version of the VPN gateway does not support BGP.
400	MissingParam.CustomerGatewayAsn	Asn of customer gateway is mandatory when BGP is enabled.	The ASN of the customer gateway cannot be empty when you enable BGP.
400	IllegalParam.LocalAsn	The specified LocalAsn is invalid.	The local ASN is invalid.
400	IllegalParam.BgpConfig	The specified BgpConfig is invalid.	The BGP configuration is invalid.
400	IllegalParam.EnableBgp	VPN connection must enable BGP when VPN gateway has enabled BGP.	The error message returned because the VPN connection must use BGP if BGP is enabled for the VPN gateway.
400	IllegalParam.TunnelCidr	The specified TunnelCidr is invalid.	The TunnelCidr parameter is set to an invalid value.
400	InvalidLocalBgpIp.Malformed	The specified LocalBgpIp is malformed.	The local BGP IP address is in an abnormal state.
400	IllegalParam.LocalBgpIp	The specified LocalBgpIp is invalid.	The local BGP IP address is invalid.
400	IllegalParam.LocalSubnet	The specified "LocalSubnet" (%s) is invalid.	The specified "LocalSubnet" (%s) is invalid.
400	IllegalParam.RemoteSubnet	The specified "RemoteSubnet" (%s) is invalid.	The specified "RemoteSubnet" (%s) is invalid.
400	OperationFailed.MissCertificate	The VPN gateway has not associated any certificates.	The error message returned because the VPN gateway is not associated with a certificate.
400	MissingParam.RemoteId	The remote ID is mandatory when creating national standard VPN connection.	The error message returned because the peer ID is not specified. You must specify the peer ID when you create a VPN connection encrypted by SM.
400	CustomerGateway.ConflictRouteEntry	The specified customer gateway has conflict with route entry.	The customer gateway conflicts with the current routes.
400	VpnTask.CONFLICT	Vpn task has conflict.	The VPN operation conflicts. Try again later.
400	Forbidden.TagKey.Duplicated	The specified tag key already exists.	The tag resources are duplicate.
400	SizeLimitExceeded.TagNum	The maximum number of tags is exceeded.	The number of tags has reached the upper limit.
400	InvalidParameter.TagValue	The specified parameter TagValue is invalid.	The error message returned because the specified tag value is invalid.
400	InvalidParameter.TagKey	The specified parameter TagKey is invalid.	The error message returned because the specified tag key is invalid.
400	Duplicated.TagKey	The specified parameter TagKey is duplicated.	The error message returned because the specified tag key already exists.
400	InternalError	The request processing has failed due to some unknown error, exception or failure.
400	InvalidTunnelCidr.Malformed	The specified TunnelCidr is malformed.	The specified tunnel CIDR block is invalid.
400	VpnConnectionParamInvalid.SameVpnAndCgwDifferentIkeConfigs	IPSec connections associated with the same user gateway and VPN gateway should have the same pre-shared key and IKE configuration.	The pre-shared key and IKE parameters must be the same for IPsec-VPN connections that are associated with the same VPN gateway and customer gateway.
400	VpnConnectionParamInvalid.SameVpnAndCgwTrafficSelectorOverlap	Traffic selectors of IPSec connections associated with the same user gateway and VPN gateway should not overlap.	The protected data flows of IPsec-VPN connections that are associated with the same VPN gateway and customer gateway cannot overlap.
400	CustomerGateway.ConflictVpnIp	The customer gateway associated with the IPSec connection should not have the same IP address as the VPN gateway.	The customer gateway and VPN gateway of an IPsec-VPN connection cannot use the same IP address.
400	VpnGateway.IPsecServerAndVpnConnectionConflict	The IPSec connection and IPSec server cannot be configured on the same VPN gateway at the same time.	You cannot configure an IPsec server and an IPsec-VPN connection at the same time for one VPN gateway.
400	InvalidSslVpnServerCertId.NotFound	The parameter is incorrect. The corresponding SSL VPN server certificate cannot be found.	The parameter is incorrect. The corresponding SSL VPN server certificate cannot be found.
400	MissingParameter.TunnelOptionsSpecification	The required parameters are missing when creating a tunnel for dual-tunnel VPN.	The required parameters are missing when creating a tunnel for dual-tunnel VPN.
400	CreateDbrRoutesQuotaFull.QuotaFull	The number of created destination routes exceeds the quota limit.	The number of created destination routes exceeds the quota limit.
400	CreatePbrRoutesQuotaFull.QuotaFull	The number of policy routes exceeds the quota limit.	The number of policy routes exceeds the quota limit.
400	CreateVpnConnectionsQuotaFull.QuotaFull	The number of VPN connections exceeds the quota limit.	The number of VPN connections exceeds the quota limit.
400	DryRunOperation	Request validation has been passed with DryRun flag set.	The request passed the dry run.
400	OperationFailed.OpenCdtServiceFirst	The operation is failed because of %s.	The billing method requires CDT billing enabled. Enable CDT billing and try again.
400	EncAlgInvalid.DesIncompatible	Des/3des in IkeEncAlg and IpsecEncAlg does not support multi algorithm.	Des/3des in IkeEncAlg and IpsecEncAlg does not support multi algorithm.
400	IkeVersionInvalid.GcmIncompatible	Ikev1 does not support IkeEncAlg of gcm16.	Ikev1 does not support IkeEncAlg of gcm16.
400	CustomerGateway.AsnNotConfigured	ASN of CustomerGateway is required when enabling BGP on an IPSec connection.	When BGP is enabled for IPSec connection, ASN needs to be configured on the customer gateway.
400	OperationFailed.CenLevelNotSupport	When the VPC to which the VPN gateway belongs is attached to a FULL-mode CEN, the VPN gateway cannot enable BGP.	When the VPC to which the VPN gateway belongs is attached to a FULL-mode CEN, the VPN gateway cannot enable BGP.
403	Forbbiden.SubUser	User not authorized to operate on the specified resource as your account is created by another user.
403	Forbidden	User not authorized to operate on the specified resource.	You do not have the permissions to manage the specified resource. Apply for the permissions and try again.
404	InvalidCustomerGatewayInstanceId.NotFound	The specified customer gateway instance id does not exist.	The specified customer gateway does not exist. Check whether the ID of the customer gateway is correct.
404	InvalidVpnGatewayInstanceId.NotFound	The specified vpn gateway instance id does not exist.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.