Public NAT Gateway Overview¶
A public NAT gateway enables cloud and on-premises servers in a private subnet to access the Internet or provide services accessible from the Internet. Cloud servers are in a VPC. On-premises servers are servers in on-premises data centers that connect to a VPC through Direct Connect or VPN. A public NAT gateway supports up to 20 Gbit/s of bandwidth.
The process of using a public NAT gateway is as follows.
Figure 1 Process of using a public NAT gateway¶
Note
An SNAT rule and a DNAT rule cannot share the same EIP. If you need to create an SNAT rule and a DNAT rule, assign two EIPs.