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The SNAT function provides agent service to access Internet to virtual machine instance without the Public IP in VPC. Meanwhile, it prevents Internet from actively connecting these virtual machine instances, playing a specific role of security and protection. Meanwhile, multiple intranet instances have access to the public network via one NAT Gateway Public IP to share the bandwidth.
The monitoring page provides multi-dimensional data such as public network access in and out rate speed (bps), concurrent connections, created connections, NAT Gateway package loss number, source port exhaustion and packet loss number, facilitating users to monitoring NAT Gateway traffic health status in real time
If the user has several VMs necessary for public access, the function of self-build SNAT can be used to share the IP bandwidth.
Several NAT Gateways can be created by one VPC and different NAT Gateways are used by different subnets, to isolate traffics and isolate error domains