dynamic Node Usage while NAT64 (without Forwarding Server)

Hello,

I have some issues at Customer Side, because we have some special environment.

My problem is, that we have here 2 environments. The main environment is the IPv4. This is the old one and will later get dualstack IPv4/IPv6.

The second environment is the temporary IPv6. There we will provide IPv6 and will NAT to IPv4 and connect to the IPv4 environment. The IPv4 IP is in the IPv6 IP (last 32Bits).

This will work with Forwarding (IP) and NAT64 enabled and no Pools/Nodes perfectly. But we have to insert XFF and therefore I have to use Performance (HTTP) with Client Protocol (fasthttp) or Standard Virtual Server with HTTP Profile and there I need Pools and Nodes.

XFF iRule is not working for a Forwarding Server, because the HTTP_REQUEST require full-proxy Virtual Server

when HTTP_REQUEST {
HTTP::header insert X-Forwarded-For [IP::remote_addr]
}

I thought, I maybe can use an iRule to solve this issue. Is it possible to use in an iRule Nodes, that are not existing in the config and are created dynamically?

Thank you and kind regards,