Tor TransparentProxy documentation: add IPv6 support / port to nftables

changed milestone to %Tor: unspecified in legacy/trac

added component::core tor/tor in Legacy / Trac ipv6 in Legacy / Trac milestone::Tor: unspecified in Legacy / Trac nftables in Legacy / Trac priority::medium in Legacy / Trac severity::normal in Legacy / Trac status::new in Legacy / Trac tor-client in Legacy / Trac tor-doc in Legacy / Trac transproxy in Legacy / Trac type::enhancement in Legacy / Trac wiki in Legacy / Trac labels

Please say more about nftables and the lack of ipv6 support?

Trac:
Milestone: N/A to Tor: unspecified

The wiki page https://trac.torproject.org/projects/tor/wiki/doc/TransparentProxy as of version https://trac.torproject.org/projects/tor/wiki/doc/TransparentProxy?version=111 is only using iptables. It does not cover IPv6 yet (then it would have to also use at minimum ip6tables). Therefore transparent proxying IPv6 traffic won't work. Also it's only using IPv4 torrc options, nothing about IPv6. Due to that wiki page being outdated, in best case, it just won't work, in worst case, IPv6 leaks.

nftables replaces iptables, ip6tables etc. While modernizing that page, it might be a great idea to port it to nftables.

Trac:
Keywords: N/A deleted, doc wiki added

I'd take a patch for this if there are issues in the code or shipped documentation; but in the meantime, somebody who uses transproxy and ipv6 a lot should revise that wiki page.

Trac:
Keywords: doc wiki deleted, tor-doc wiki nftables ipv6 transproxy tor-client added