Dual-NIC Support on the VA
In the Alibaba Cloud elastic network interfaces (ENIs) are logical networking components that represent virtual NICs, providing network connectivity and IP addresses for Elastic Compute Service (ECS) instances deployed in virtual private clouds (VPCs).
The Secure Access VA supports a dual-NIC configuration. This dual-NIC configuration is intended to enable DMZ deployment of a VA for traffic segregation with one network interface being used for outbound communication and the other network interface used for internal communication.
There is no change to existing behavior if the VA is deployed with a single NIC. Configuring more than two NICs on the VA is not supported.
For more information about Secure Access Dual-NIC support and how to configure Alibaba ENIs, see the following:
Note: Do not connect more than one ENI the same VSwitch. Network issues will result.