On the IPv6 NAT panel, you can set source and destination IPv6 NAT. Source NAT involves translating the source IP addresses of data that meets the conditions and is forwarded by the device. Destination NAT involves translating the destination IP addresses of data meeting the conditions.

You can manage source IPv6 NAT rules, including adding and deleting rules. See the following figure.

Example 1: The customer has obtained an IP address prefixed 2000::/64 from carrier A and assigned this IP address to a PC on the intranet. The customer then switches to carrier B and is assigned an IP address prefixed 3000::/64. The customer does not want to modify the internal IP address structure. IPv6 NAT is therefore required.

1. Click Add and select Source NAT. See the following figure.

Name: Enter the rule name.

Description: Enter the description of this rule.

Source: Select an internal network interface of the source zone from Interface and enter the prefix of an internal IPv6 address in IP Addr/Prefix, for example, 2000::/64.

Destination: Select a network interface of the destination zone for data forwarding.

Source NAT: Set the range of IPv6 addresses to which source IP addresses of data meeting the conditions are translated. In this example, source IP addresses will be translated to 3000::/64.

2. Click Add and select Destination NAT. See the following figure.

Name: Enter the rule name.

Description: Enter the description of this rule.

Source: Select a WAN interface of the source zone from Interface and enter the prefix of an internal IPv6 address in IP Addr/Prefix, for example, 3000::/64.

Destination: Enter the IP Addr/Prefix of the destination address.

Destination NAT: Set the range of IPv6 addresses to which destination IP addresses of data meeting the conditions are translated. In this example, destination IP addresses will be translated to 2000::/64. See the following figure.