Network Address Translation
Network Address Translation (NAT) enables cloud servers in a VPC to access the Internet. NAT supports multi-node hot standby, automatic failover, a maximum bandwidth of 15 Gbit/s for a single IP address, at most 20 IP addresses, and over 100 million concurrent connections.
Benefits
Large Egress
Support a maximum bandwidth of 15 Gbit/s for a single IP address.
Multiple IP Addresses
Support at most 20 IP addresses per NAT instance.
High Availability
Support multi-node hot standby and automatic failover.
Monitoring and Alarm
Provide visualized multidimensional monitoring and alarm to ensure timely adjustment in case of traffic bursts.
Features
SNAT Forwarding
Provide a proxy for Internet access for VPC servers that are not configured with public IP addresses and prevent the security risks caused by exposing the public IP addresses of the servers.
High Performance
Support 100 million active connections to meet your demand for massive connections.
Automatic Disaster Recovery
Support multi-node hot standby and automatic failover to ensure stable business operation.
Monitoring and Alarm
Provide multidimensional monitoring data in graphics and support custom monitoring alarms for free to help you recognize risks in advance.
Product Updates
1
NAT released
NAT for public networks and private networks is implemented.
2015-07-16
New Features
2
Available for purchase
NAT can be purchased for public networks and private networks.
2016-07-21
New Features
3
More IP addresses supported
NAT can be configured with more IP addresses (in all VPC regions).
2018-05-17
New Features
4
Enhanced 95th Percentile billing mode supported
NAT supports the Enhanced 95th Percentile billing mode.
2019-05-14
New Features
Scenarios
Public network access
Public network access
Public network access
An NAT gateway is located at the border of the Internet and the VPC and connected to a router of the VPC. When VPC resources such as KEC instances send data packets through the NAT gateway, the data will first be sent to a router and then routed based on the routing policies. Then, the NAT gateway sends the data to the Internet by using the NAT IP address as the source IP address.