Client Configuration Precautions

Limitations and Constraints

• When a VPN client connects to multiple servers, ensure that the client CIDR blocks configured for the servers do not overlap with each. Otherwise, the client may be assigned the same IP address for connecting to different servers, causing connection failures.
• A client can establish only one VPN connection with a VPN gateway.
• If DNS has been configured on the operating system where the OpenVPN client is installed and DNS is also configured for a P2C VPN gateway, the later will inherit or overwrite the former. As a result, domain names in the DNS configuration of the operating system will fail to be resolved, causing access failures.

High-Risk Operation Warning

Before configuring a client, exercise caution when adding, deleting, or modifying the local subnet of a VPN gateway and the customer subnet or policy configuration of a VPN connection, because these operations may cause network interruption.

List of Supported Operating Systems