Fedora IPv6 testing and improvements - request for ideas

Chris Adams linux at cmadams.net
Thu Oct 29 20:30:12 UTC 2015

Once upon a time, Zach Villers <zachvatwork at gmail.com> said:
> If it helps, Sixxs (https://www.sixxs.net/main/) is a very highly
> recommended tunnel broker. I have not tried it and am not affiliated. I do
> have ipv6 capability from my isp, so could help with testing.

There's also Hurricane Electric's free IPv6 tunnels.

BTW: one issue that I have seen with IPv6 and address privacy extensions
is that, since temporary address handling moved to user-space
(NetworkManager I guess?) instead of kernel-space, temporary addresses
are expired even when they are still in use.  This affects anything that
uses long-lived sessions (such as SSH to a server) and is highly

The RFC (4941 section 3.4) says:

  "As an optional optimization, an implementation MAY remove a
   deprecated temporary address that is not in use by applications or
   upper layers as detailed in Section 6."

Chris Adams <linux at cmadams.net>

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