Can I Configure the Origin Server Address to an IPv6 Address in WAF?

Yes. The origin server address configured in WAF can be an IPv4 or IPv6 address. If you have configured an IPv4 address, change it to an IPv6 address of the origin server at any time you want.

WAF supports the IPv6/IPv4 dual stack mode and NAT64 mechanism. The details are as follows:

• WAF can inspect requests that use both IPv4 and IPv6 addresses for the same domain name.
• For web services that still use the IPv4 protocol stack, WAF supports the NAT64 mechanism. NAT64 is an IPv6 conversion mechanism that enables communication between the IPv6 and IPv4 hosts using network address translation (NAT). WAF can convert an IPv4 source site to an IPv6 website and converts external IPv6 access traffic to internal IPv4 traffic.