I may be looking at something that isn't expected to work in this set-up at all, but still:
traceroute to my workstation back home in "default" command-line does not work, it comes back with "network is unreachable". Adding -6 flag to force using the AAAA DNS response makes it work. According to the man page it should select the version automatically. Requesting TCP mode fails completely to come back with answers, even when forcing -6 Linux Mint Quiana, 32bit, Modern traceroute for Linux, version 2.0.20, Aug 19 2014 Copyright (c) 2008 Dmitry Butskoy, License: GPL v2 or any later Fwiw, Wilfried
