Hi, We (kubernetes) are currently exploring options for port forwarding traffic that originates from localhost and is also destined for localhost, to redirect it to a different destination IP address and port [1]. We can use the route_localnet sysctl parameter, however, that does not work for IPv6. We are trying to avoid solutions that rely on eBPF or userspace proxies to reduce the maintenance load, and hoping to find a solution within the kernel's networking stack. Any guidance or suggestions you could provide would be greatly appreciated. [1]: https://github.com/kubernetes/kubernetes/issues/132955
