Developer IPv6 Ports, Protocols, & Firewall Reference

25 essential port/protocol pairings and conceptual firewall rules for IPv6 development environments.

Local Host & Syntax

Loopback Address (LAN)

::1

Web Protocol URL Example


                            http://[::1]:8080/

Brackets `[]` are mandatory in URLs when including a port.

Documentation Prefix


                            2001:db8::/32

Used for all IPv6 documentation and examples.

25 Ports, Protocols, and Conceptual Forwarding Rules

Service Port Proto Conceptual IPv6 Firewall Rule (`ip6tables`)

Note on Port Forwarding & Firewall Rules

Unlike IPv4, IPv6 often uses `ip6tables` or similar native firewall tools, as Network Address Translation (NAT) is usually not required. The conceptual rules above use `ip6tables` syntax to illustrate how ports are opened (`-j ACCEPT`) for incoming traffic. For actual port forwarding to a different machine, you would typically use a **reverse proxy** or a **routing table** rule, as IPv6 nodes are designed to be directly addressable.