[Mesh] Changing your MAC address

[Steve Berl]

It makes a lot of sense that a network with MAC hopping devices would need
a DHCP server with short lease times.

How do short lease times impact devices that are not changing their MAC
addresses?

-steve


On Wed, Nov 20, 2013 at 12:18 PM, Yardena Cohen <yardenack at gmail.com> wrote:

> Inspired by last week's conversation, I experimented with MAC
> randomization on my laptop. And I DoS'd my own network by exhausting
> its DHCP pool.
>
> My very naive script reset the MAC after every network hiccup, so the
> router kept seeing an entirely new device and giving it a new IP
> address. Slowly. Until they were all gone. I "solved" my problem the
> stupid way by rebooting the router and lowering the DHCP timeout from
> 24 to 3 hours.
>
> A production script would be clever about resetting it only on new
> associations, and not on every brief reassociation. However, still
> something to keep in mind when deploying networks that encourage this
> sort of thing. ;)
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-- 
-steve
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