CreateSslVpnServer - Virtual Private Cloud - Alibaba Cloud Documentation Center

Creates an SSL server.

Operation description

CreateSslVpnServer is an asynchronous operation. After a request is sent, the system returns a request ID and runs the task in the background. You can call the DescribeVpnGateway operation to query the status of the task.
- If the VPN gateway is in the updating state, the SSL server is being created.
- If the VPN gateway is in the active state, the SSL server is created.
You cannot repeatedly call the CreateSslVpnServer operation within the specified period of time.

Prerequisite

A VPN gateway is created, and the SSL-VPN feature is enabled for the VPN gateway. For more information, see CreateVpnGateway .
If you want to enable two-factor authentication for the SSL server, make sure that the VPN gateway supports two-factor authentication. You may need to upgrade the VPN gateway. For more information, see Two-factor authentication supports IDaaS EIAM 2.0.

Debugging

You can run this interface directly in OpenAPI Explorer, saving you the trouble of calculating signatures. After running successfully, OpenAPI Explorer can automatically generate SDK code samples.

Debug

Authorization information

The following table shows the authorization information corresponding to the API. The authorization information can be used in the Action policy element to grant a RAM user or RAM role the permissions to call this API operation. Description:

Operation: the value that you can use in the Action element to specify the operation on a resource.
Access level: the access level of each operation. The levels are read, write, and list.
Resource type: the type of the resource on which you can authorize the RAM user or the RAM role to perform the operation. Take note of the following items:
- The required resource types are displayed in bold characters.
- If the permissions cannot be granted at the resource level, All Resources is used in the Resource type column of the operation.
Condition Key: the condition key that is defined by the cloud service.
Associated operation: other operations that the RAM user or the RAM role must have permissions to perform to complete the operation. To complete the operation, the RAM user or the RAM role must have the permissions to perform the associated operations.

Operation	Access level	Resource type	Condition key	Associated operation
vpc:CreateSslVpnServer	create	SslVpnServer `acs:vpc:{#regionId}:{#accountId}:sslvpnserver/` *VpnGateway `acs:vpc:{#regionId}:{#accountId}:vpngateway/{#VpnGatewayId}`	none	none

Request parameters

Parameter	Type	Required	Description	Example
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 request ID as the client token. The request ID may be different for each request.	02fb3da4-130e-11e9-8e44-0016e04115b
RegionId	string	Yes	The region ID of the VPN gateway. You can call the DescribeRegions operation to query the most recent region list.	cn-shanghai
VpnGatewayId	string	Yes	The ID of the VPN gateway.	vpn-bp1hgim8by0kc9nga****
Name	string	No	The SSL server name. The name must be 1 to 100 characters in length and cannot start with `http://` or `https://`.	sslvpnname
ClientIpPool	string	Yes	The client CIDR block. It is the CIDR block from which an IP address is allocated to the virtual network interface controller (NIC) of the client. It is not the private CIDR block of the client. If the client accesses the SSL server over an SSL-VPN connection, the VPN gateway assigns an IP address from the specified client CIDR block to the client. The client uses the assigned IP address to access cloud resources. Make sure that the number of IP addresses in the client CIDR block is at least four times the maximum number of SSL-VPN connections supported by the VPN gateway. Click to view the reason. For example, if you specify 192.168.0.0/24 as the client CIDR block, the system first divides a subnet CIDR block with a subnet mask of 30 from 192.168.0.0/24, such as 192.168.0.4/30. This subnet provides up to four IP addresses. Then, the system allocates an IP address from 192.168.0.4/30 to the client and uses the other three IP addresses to ensure network communication. In this case, one client consumes four IP addresses. Therefore, to ensure that an IP address is assigned to your client, you must make sure that the number of IP addresses in the client CIDR block is at least four times the maximum number of SSL-VPN connections supported by the VPN gateway with which the SSL server is associated. Click to view the CIDR blocks that are not supported. 100.64.0.0~100.127.255.255 127.0.0.0~127.255.255.255 169.254.0.0~169.254.255.255 224.0.0.0~239.255.255.255 255.0.0.0~255.255.255.255 Click to view the recommended client CIDR blocks for different numbers of SSL-VPN connections. If the number of SSL-VPN connections is 5, we recommend that you specify a client CIDR block with a subnet mask that is less than or equal to 27 bits in length. Examples: 10.0.0.0/27 and 10.0.0.0/26. If the number of SSL-VPN connections is 10, we recommend that you specify a client CIDR block with a subnet mask that is less than or equal to 26 bits in length. Examples: 10.0.0.0/26 and 10.0.0.0/25. If the number of SSL-VPN connections is 20, we recommend that you specify a client CIDR block with a subnet mask that is less than or equal to 25 bits in length. Examples: 10.0.0.0/25 and 10.0.0.0/24. If the number of SSL-VPN connections is 50, we recommend that you specify a client CIDR block with a subnet mask that is less than or equal to 24 bits in length. Examples: 10.0.0.0/24 and 10.0.0.0/23. If the number of SSL-VPN connections is 100, we recommend that you specify a client CIDR block with a subnet mask that is less than or equal to 23 bits in length. Examples: 10.0.0.0/23 and 10.0.0.0/22. If the number of SSL-VPN connections is 200, we recommend that you specify a client CIDR block with a subnet mask that is less than or equal to 22 bits in length. Examples: 10.0.0.0/22 and 10.0.0.0/21. If the number of SSL-VPN connections is 500, we recommend that you specify a client CIDR block with a subnet mask that is less than or equal to 21 bits in length. Examples: 10.0.0.0/21 and 10.0.0.0/20. If the number of SSL-VPN connections is 1,000, we recommend that you specify a client CIDR block with a subnet mask that is less than or equal to 20 bits in length. Examples: 10.0.0.0/20 and 10.0.0.0/19. Note The subnet mask of the client CIDR block must be 16 to 29 bits in length. Make sure that the local CIDR block and the client CIDR block do not overlap with each other. We recommend that you use 10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16, or one of their subnets as the client CIDR block. If you want to specify a public CIDR block as the client CIDR block, you must specify the public CIDR block as the user CIDR block of the virtual private cloud (VPC). This way, the VPC can access the public CIDR block. For more information, see VPC FAQ. After you create an SSL server, the system automatically adds routes that point to the client CIDR block to the VPC route table, which is not displayed in the console by default. Do not add routes that point to the client CIDR block to the VPC route table again. Otherwise, SSL-VPN connections cannot work as expected.	192.168.1.0/24
LocalSubnet	string	Yes	The local CIDR block. It is the CIDR block that your client needs to access by using the SSL-VPN connection. This value can be the CIDR block of a VPC, a vSwitch, a data center that is connected to a VPC by using an Express Connect circuit, or an Alibaba Cloud service such as Object Storage Service (OSS). The subnet mask of the specified local CIDR block must be 8 to 32 bits in length. You cannot specify the following CIDR blocks as the local CIDR blocks: 100.64.0.0~100.127.255.255 127.0.0.0~127.255.255.255 169.254.0.0~169.254.255.255 224.0.0.0~239.255.255.255 255.0.0.0~255.255.255.255	10.0.0.0/8
Proto	string	No	The protocol that is used by the SSL server. Valid values: TCP (default) UDP	UDP
Cipher	string	No	The encryption algorithm that is used by the SSL-VPN connection. If the client uses Tunnelblick or OpenVPN 2.4.0 or later, the SSL server dynamically negotiates with the client about the encryption algorithm and uses the most secure encryption algorithm that is supported by the SSL server and the client. The encryption algorithm that you specify for the SSL server does not take effect. If the client uses OpenVPN of a version that is earlier than 2.4.0, the SSL server and the client use the encryption algorithm that you specify for the SSL server. You can specify one of the following encryption algorithms for the SSL server: AES-128-CBC (default) AES-192-CBC AES-256-CBC none	AES-128-CBC
Port	integer	No	The port that is used by the SSL server. Valid values of port numbers: 1 to 65535. Default value: 1194. The following ports are not supported: 22, 2222, 22222, 9000, 9001, 9002, 7505, 80, 443, 53, 68, 123, 4510, 4560, 500, and 4500.	1194
Compress	boolean	No	Specifies whether to enable data compression. Valid values: true false (default)	false
EnableMultiFactorAuth	boolean	No	Specifies whether to enable two-factor authentication. To enable two-factor authentication, you need to specify `IDaaSInstanceId`, `IDaaSRegionId`, and `IDaaSApplicationId`. Valid values: true false (default) Note If you use two-factor authentication for the first time, you need to complete authorization before you create an SSL server. IDaaS EIAM 1.0 instances are no longer available for purchase. If your Alibaba Cloud account has IDaaS EIAM 1.0 instances, IDaaS EIAM 1.0 instances can be associated after two-factor authentication is enabled. If your Alibaba Cloud account does not have IDaaS EIAM 1.0 instances, only IDaaS EIAM 2.0 instances can be associated after two-factor authentication is enabled.	false
IDaaSInstanceId	string	No	The ID of the IDaaS EIAM instance.	idaas-cn-hangzhou-p****
IDaaSRegionId	string	No	The region ID of the IDaaS EIAM instance.	cn-hangzhou
IDaaSApplicationId	string	No	The ID of the IDaaS application. If an IDaaS EIAM 2.0 instance is associated, you need to specify an IDaaS application ID. If an IDaaS EIAM 1.0 instance is associated, you do not need to specify an IDaaS application ID.	app_my6g4qmvnwxzj2f****

Response parameters

Parameter	Type	Description	Example
	object
SslVpnServerId	string	The ID of the SSL server.	vss-bp18q7hzj6largv4v****
RequestId	string	The request ID.	E98A9651-7098-40C7-8F85-C818D1EBBA85
Name	string	The SSL server name.	test

Examples

Sample success responses

JSONformat

{
  "SslVpnServerId": "vss-bp18q7hzj6largv4v****",
  "RequestId": "E98A9651-7098-40C7-8F85-C818D1EBBA85",
  "Name": "test"
}

Error codes

HTTP status code	Error code	Error message	Description
400	Resource.QuotaFull	The quota of resource is full	The resource quota is exhausted.
400	InvalidName	The name is not valid	The name format is invalid.
400	VpnGateway.Configuring	The specified service is configuring.	The service is being configured. Try again later.
400	VpnGateway.FinancialLocked	The specified service is financial locked.	The service is suspended due to overdue payments. Top up your account first.
400	SslVpnServer.AlreadyExist	The SSL VPN server of specified vpn gateway already exists.	The specified SSL server already exists on the VPN gateway.
400	VpnRouteEntry.Conflict	The specified route entry has conflict.	Route conflicts exist.
400	IpConflict	Client IP pool conflict with local IP range.	The client IP pool conflicts with the local IP range.
400	IpConflict	Client IP pool conflict with other SSL VPN server in the same VPC.	The client IP address pool conflicts with SSL servers in the same VPC.
400	SslVpnServer.AddRouteError	Add route error whose destination is client IP pool, please check vpc route entry and relevant quota.	The system failed to add the route that points to the client CIDR block. View the VPC route and quota.
400	ClientIpPool.NetmaskInvalid	The netmask length of client IP pool must be greater than or equal to 16 and less than or equal to 29.	The subnet mask of the client IP pool must range from 16 to 29.
400	ClientIpPool.SubnetInvalid	The specified client IP pool cannot be used.	The client CIDR block is unavailable.
400	MissingParameter.IDaaSInstanceId	The input parameter IDaaSInstanceId is mandatory when enable multi-factor authentication.	You must set the IDaaSInstanceId parameter when you enable two-factor authentication.
400	OperationFailed.NoRamPermission	Vpn Service has no permission to operate your IDaaS instances.	The VPN service does not have the permissions to manage your IDaaS instance.
400	OperationUnsupported.NotSupportMultiFactorAuth	Current version of the VPN does not support multi-factor authentication.	-
400	QuotaExceeded.VpnRouteEntry	The number of route entries to the VPN gateway in the VPC routing table has reached the quota limit.	The number of route entries to the VPN gateway in the VPC routing table has reached the quota limit.
400	SystemBusy	The system is busy. Please try again later.	The system is busy. Please try again later.
400	SslVpnServerPort.Illegal	The server port is not in the range of [1-65535].	The port of the SSL-VPN server must be from 1 to 65535.
400	EnableHaCheck.SslVpnServerClientCidrContainsVpcRouteDest	Ssl vpn client cidr contains vpc route prefix. The vpc route prefix is %s.	The prefix %s in the VPC route table falls within the CIDR block of the SSL client.
400	VpnGateway.SslVpnDisabled	The VPN gateway has not enabled SSL VPN.	The SSL-VPN feature is disabled for the VPN gateway.
400	IllegalParam.LocalSubnet	The specified "LocalSubnet" (%s) is invalid.	The specified "LocalSubnet" (%s) is invalid.
400	IllegalParam.IDaaSApplicationId	The specified IDaaS application Id is not illegal, the application instance needs to be created based on the dedicated SSL VPN template.	The specified IDaaS application instance ID is invalid. The application instance must be created based on the dedicated SSL VPN template.
400	SslVpnIDaaS2.NotSupport	Current version of the VPN does not support IDaaS2.0.	The current version of the VPN instance does not support IDaaS2.0.
400	MissingParam.IDaaSApplicationId	The input parameter IDaaSApplicationId is mandatory when enable multi-factor authentication.	Enter the IDaaSApplicationId parameters when starting two-factor authentication.
400	MissingParam.IDaaSRegionId	The input parameter IDaaSRegionId is mandatory when enable multi-factor authentication.	Enter the IDaaSRegionId parameters when starting two-factor authentication.
403	Forbbiden.SubUser	User not authorized to operate on the specified resource as your account is created by another user.	You are unauthorized to perform this operation on the specified resource. Acquire the required permissions and try again.
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	InvalidRegionId.NotFound	The specified region is not found during access authentication.	The specified area is not found during authentication.
404	InvalidVpnGatewayInstanceId.NotFound	The specified vpn gateway instance id does not exist.	The specified VPN gateway does not exist. Check whether the specified VPN gateway is valid.
404	InvalidIDaaSInstanceId.NotFound	The specified IDaaS instance ID does not exist.	The specified IDaaS instance does not exist.
404	InvalidIDaaSApplicationId.NotFound	The specified IDaaS application Id does not exist.	The ID of the specified IDaaS application instance does not exist.

For a list of error codes, visit the Service error codes.

Change history

Change time	Summary of changes	Operation
2024-05-10	The Error code has changed. The request parameters of the API has changed	View Change Details
2023-10-19	API Description Update. The API operation is not deprecated.. The Error code has changed	View Change Details
2023-05-30	The Error code has changed	View Change Details