[Mesh] Fwd: [Commotion-discuss] Seattle Police mesh network for surveillance?

[Marc Juul]

On Mon, Nov 11, 2013 at 2:44 PM, Mitar <mitar at tnode.com> wrote:

> Hi!
>
> > Can't we just modify batman-adv to rewrite MAC addresses on the fly? We
> > would need to keep a mapping of MAC to fakeMAC for each client, but only
> > for the directly connected clients, so the lookup and packet mangling
> > should be fast.
>
> And when you roam?
>

Yes, a bit tricky without getting too complicated. One way would be to use
a one-way hash to generate fakeMAC from MAC, but maybe that's too easy to
brute-force since the salt would have to be the same for all nodes.


> So maybe it would be easier then to use L3 routing protocol? Each node
> gets its own IPv6 subnet, each client for each node is mapped to an IP
> in the subnet, we can change this IP as often as we want, this IP is the
> only thing visible beyond the direct network of the node. If we want, we
> can do IPv6 NAT on the gateway. So this is then your idea above, just
> that fakeMAC is IPv6. You do not have roaming as well.
>

Yeah. Roaming is nice though.


>
> Mitar
>
> --
> http://mitar.tnode.com/
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