What does an IPv6 proxy look like?

An IPv6 proxy is a tunnel from IPv4 to IPv6. Tunnels are used to help software receive proxies correctly. The site doesn't see the tunnel, only IPv6 hidden on the tunnel port. Each tunnel has a unique individual IPv6 address on its port. Example for IPv4 - 164.0.32.25:3229 Example of IPv6 hidden behind ports - fabc:de12:3456:7890:ABCD:EF98:7654:3210.