[GRLUG] DD-WRT DHCP/IP address problem

[Dave Chiodo]

It sounds like you just have two wireless AP's (even they are both on the
same hardware) that are on the same LAN, and the two DHCP networks are
stepping on each other - both receive requests, and the client takes the
assignment from whichever reply it gets first.

I found this which describes how to make it work - the "separate bridge" is
an essential part. If you didn't do that, that's the problem. If it worked
before, it was out of random luck:

http://www.alexlaird.com/2013/03/dd-wrt-guest-wireless/

On Sun, Apr 17, 2016 at 2:07 PM, John-Thomas Richards <jtr at jrichards.org>
wrote:

> On Sun, Apr 17, 2016 at 12:35:59PM -0400, Dave Chiodo wrote:
> > Are you sure the two virtual wireless networks are associated with
> separate
> > VLANS with broadcast domains fully isolated from each other?
>
> I'm not sure what that means fully. I added a virtual interface that
> worked fine for months, then stopped working.
>
> > What you describe sounds like what would happen with two DHCP servers on
> > the same LAN, where its essentially a race which one responds first when
> a
> > client makes a request.
>
> I'm not really sure of much, except this: it was working then suddenly
> it stopped working all the time. Sometimes disconnecting and
> reconnecting would result in a right address. Nothing changed on the
> router (no configuration changes); it just stopped working properly. The
> virtual interface does not have a separate configuration for IP address
> range (and subnet).
> --
> J-T
> -----
> Absurdity, n.: A statement or belief manifestly inconsistent with one's
> own opinion.
> Ambrose Bierce, (1842-1914) "The Devil's Dictionary"
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