Alibaba Cloud provides different IPv6 gateway editions. When you use IPv6 gateways to communicate with the Internet, take note of the following limits brought by different editions: the throughput capacity of an IPv6 gateway, the bandwidth limit of an IPv6 address, and the number of egress-only rules supported by an IPv6 gateway.

Edition Throughput capacity of an IPv6 gateway Bandwidth limit of an IPv6 address Number of egress-only rules supported by an IPv6 gateway
Pay-by-bandwidth Pay-by-data-transfer
Free Edition 10 Gbps 2 Gbps 200 Mbps 0
Enterprise Edition 20 Gbps 2 Gbps 500 Mbps 50
Enhanced Enterprise Edition 50 Gbps 2 Gbps 1 Gbps 200