Feature: Dual-stack works with --p2p-port-ipv6 set to --p2p-port

[yorickdowne]

Description

Currently, with --p2p-interface 0.0.0.0,::, the --p2p-port and --p2p-port-ipv6 options need to be distinct.

This means additional configuration steps for users, whether for ufw or host-mapped docker ports.

From a networking perspective, the ports could be the same and a program could listen on v4 and v6. This is the standard behavior for dual-stack applications.

Versions (Add all that apply)

• Software version: 24.8.0
• Java version: 21

[rolfyone]

Hey - thanks for raising this, we'll have a look at what's going on.