VPN FAQs

What scenarios does VPN support?

The VPN gateway on Baidu AI Cloud allows users to create site-to-site VPN tunnel connections. It establishes secure public tunnels between Baidu AI Cloud networks and user IDC networks, enabling users to build hybrid cloud environments and promote resource sharing between enterprise data centers and the cloud. Additionally, users can rely on the VPN gateway for enterprise data backup and remote disaster recovery, ensuring the high availability of data and services.

What are the advantages of Baidu AI Cloud VPN?

VPN supports up to 1G bandwidth and achieves high reliability through automatic failover and recovery based on HA.

After configuring multiple segments for a VPN tunnel, the tunnel status shows as Available, but only one segment can communicate. Why?

This could be due to differences in multi-segment implementation between Baidu AI Cloud and peers such as strongSwan. You may consider merging multiple segments or using 0.0.0.0/0.

Can a VPC establish connections with multiple user IDCs via VPN?

Yes, the private VPC currently supports establishing multiple VPN gateways, with each gateway providing one VPN tunnel, which allows connecting to multiple user IDCs.

What is the network quality like over a VPN connection?

Communication between the virtual private cloud and IDC relies on the public network, which may be subject to latency, packet loss, or jitter. For more stable communication quality, it is recommended to use the Express Tunnel service. The VPN backend monitors network quality 24/7, including keepalive and network latency. If any network anomalies occur, operations personnel will promptly address them. Users can also monitor the traffic status of VPN Gateways and tunnels in real-time via the console and contact us promptly if anomalies are detected.

Which encryption protocols does VPN support?

Currently, VPN connections support the IPSec encryption protocol, which meets the requirements of most VPN connections.

How to enable some cloud servers in a VPC to access via VPN?

The Baidu AI Cloud VPN gateway is part of the Virtual Private Cloud service, enabling VPN tunnel integration at the subnet level. Users can assign Baidu Cloud Compute instances connected via VPN to a specific subnet, and configure the source segment in the VPN gateway’s local network and route table to specify this subnet, ensuring that only designated Baidu Cloud Compute instances within the VPC's chosen subnet are accessible via VPN.

Can VPN interconnect two VPCs?

Yes, users need to purchase and configure VPN gateways in both VPCs, but the process can be relatively complex. It is recommended to use peering connections instead, which connect two VPCs through Baidu AI Cloud's backbone network to ensure higher communication quality.

Does Baidu AI Cloud VPN gateway support SSL VPN?

Supported. Users can purchase it on the console. For specific usage, refer to the SSL VPN operation guide.