[Server-devel] xs-activation: why no IPv6 yet?

[John Watlington]

IPv6 was supported in earlier builds.

It was taken out last December, as there was no clear way to
support IPv6 when multiple school servers are providing
network access through the school mesh.[1]

As we don't support multiple school servers with a school mesh
(and probably will never), this can be restored.

wad

[1] The reason is that the mesh firmware supports a level 2
anycast MAC address.   Only one of the responding DHCP
servers is listened to for an address assignment.   IPv6 RADVD
includes unsolicited route advertisements, which would be
picked up by all laptops in a school, causing them to be very
confused about which gateway they should be using (in IPv4
the firmware selects the DHCP response from the "closest" gateway.)

On Sep 2, 2008, at 1:21 AM, Douglas Bagnall wrote:

> To preempt this FAQ, the F7 school server is quite inconsistent in its
> IPv6 support, and some work would have been necessary to get it to a
> state where I could test it.  With the immanent jump to F9, and a new
> networking setup, this didn't seem very worthwhile.  I'll revisit it
> again when IPv6 is working on the school server in general.
>
> The activation server hides behind xinetd, so it doesn't deal directly
> with networking.  Getting it to work with IPv6 shouldn't be more
> difficult than it is for anything else in that situation.
>
>
> Douglas
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