Converge Cloud NAT Gateway offers various packages based on product features and specifications. It is classified into:
- Public NAT Gateway
- Private NAT Gateway
Public NAT Gateway
Public NAT Gateway allows multiple CVMs without public IPs in the VPC to:
- Actively access the public network.
- Map EIPs and ports to CVM private IPs and ports so that CVMs can be accessed from the public network.
Public NAT Gateway is further divided into:
- Traditional NAT Gateway
- Standard NAT Gateway
Standard NAT Gateway is currently in beta testing in the Philippines. To use it, please submit a request ticket. Traditional NAT Gateway includes the original Small, Medium, and Large NAT Gateways. After activating Standard NAT Gateway, the original NAT Gateway types are automatically renamed: - Traditional NAT Gateway – Small - Traditional NAT Gateway – Medium - Traditional NAT Gateway – Large If Standard NAT Gateway is not activated, the console experience remains unchanged.
Comparison: Standard NAT Gateway vs Traditional NAT Gateway
| Comparison Item | Standard NAT Gateway | Traditional NAT Gateway |
|---|---|---|
| High availability | Natively supports multi-AZ disaster recovery | Achieves cross-availability zone disaster recovery via rapid migration |
| Gateway specification | Supports 2,000,000 concurrent connections, 100,000 new connections/sec, 5 Gbps BW cap | Supports Small (up to 1,000,000 connections), Medium (up to 3,000,000), Large (up to 10,000,000). Peak outbound BW options: 10, 20, 50, 100, 200, 500, 1,000, 2,000, 5,000 Mbps. Max inbound BW: 5,000 Mbps by default |
| Gateway fee | Instance fee + CU (Capacity Unit) fee: • Instance fee: charged hourly • CU fee: based on actual performance |
Same calculation method as Standard NAT Gateway |
| ECMP | Supported | Supported |
| Gateway traffic control | Not yet supported | Supported |
| Gateway traffic logs | Not yet supported | Supported |
- Public NAT Gateway supports binding up to 10 EIPs. - For SNAT, max connections for the same protocol/destination IP/port = number of bound EIPs × 55,000. Bind new EIPs or adjust destination IP/port to increase connections. - Hybrid ECMP between Standard and Traditional NAT Gateways is not supported. - For other specifications or feature requests, submit a ticket.
Private NAT Gateway
Private NAT Gateway enables CVMs in the VPC to:
- Access other VPCs (public or private).
- Be accessed from public VPCs.
Private NAT Gateway is currently in beta testing in the Philippines. To use it, please submit a request ticket.