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Will a VPN Connection Be Reestablished After Its Configuration Is Modified?
Updated on 2023-06-16 GMT+08:00
Will a VPN Connection Be Reestablished After Its Configuration Is Modified?
A VPN connection consists of local subnets, remote subnets, remote gateway, pre-shared key, IKE negotiation policies, and IPsec negotiation policies. A VPN connection is modified if any of the following happens:
- If the local and remote subnets are modified, the connection ID will remain unchanged. If not all subnets are updated, the established tunnel between subnets will not be re-established.
- If the IP address of the remote gateway is changed, even the connection ID will remain unchanged, the remote end has changed. Therefore, the VPN connection needs to be reestablished.
- If only the pre-shared keys of the connection are changed, the connection ID and status will remain unchanged. The keys will be checked again during renegotiation. If the keys do not match, the renegotiation fails.
- If the negotiation policy is modified (pre-shared key authentication is required), the connection ID will be changed and the connection needs to be re-established.
Parent topic: VPN Negotiation and Interconnection
VPN Negotiation and Interconnection FAQs
- What Devices Can Be Connected to Huawei Cloud Through a VPN?
- What Are VPN Negotiation Parameters? What Are Their Default Values?
- Will an IPsec VPN Connection Be Established Automatically?
- How Do I Configure a VPN on an On-premises Device? (Configuring the VPN on a Huawei USG6600 Series Firewall)
- How Should I Configure an On-premises Gateway When I Use a VPN to Connect to the Cloud?
- Can Huawei Cloud VPN Connect to a Remote Gateway Through a Domain Name?
- How Many Tunnels Does My VPN Connection Have?
- How Do I Allow Specific Servers to Access a VPC Subnet Through a Created VPN Connection?
- Do Huawei Cloud VPNs Have the DPD Mechanism Enabled?
- How Can I Use Security Groups to Prevent ECSs in a VPC From Being Accessed Through a VPN to Implement Security Isolation?
- Will a VPN Connection Be Reestablished After Its Configuration Is Modified?
- Why Cannot I Initiate Negotiation from Amazon Web Services to Huawei Cloud After They Are Interconnected?
- How Do I Configure DPD for Interconnecting with Huawei Cloud?
- What Should I Do If My Firewall Cannot Receive Response Packets from the Huawei Cloud VPN Gateway in the IKE Phase?
- What Should I Do If My Firewall Cannot Receive Response Packets from the Huawei Cloud VPN Subnet?
- What Are the Bits of the DH Groups Used by Huawei Cloud VPN?
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