On Fri, Sep 16, 2016 at 5:13 AM, Alex Elsayed eternaleye@gmail.com wrote:
Hi, I'm using Tor in transparent mode, and I'm running into a rather inconvenient behavior.
VirtualAddrNetworkIPv6 refuses to parse unless the network address given is a /40 or broader. However, IPv6 ULA, which makes it very easy to give Tor its own subnet no-strings-attached, strictly grants a /48 prefix.
As a result, I am faced with a choice between deeply suboptimal options:
1.) Use VirtualAddrNetworkIPv4, as I've done in the past. This results in _fewer_ addresses being available to Tor than an IPv6 /48, which I feel illustrates the issues with requiring a /40 quite clearly.
2.) Squat on some portion of the IPv6 address space I don't actually own. This is entirely unpalatable
This impacts with onioncat as well. I'm curious as to any /40 rationale, though I suspect a historical brainfart typo.