[Cerowrt-devel] Recommendations for cerowrt multi-ap at home?

[Dave Taht]

On Thu, Nov 14, 2013 at 9:03 PM, Kelvin Edmison <kelvin at edmison.net> wrote:
> I've been experimenting with two WNDR3800s and meshing, and I'm starting to
> wonder if meshing is the right answer for a typical residential user who
> needs multiple APs.

Well, an alternative is to bridge or use WDS.


>
> My use case is a single cable internet connection, and a footprint that
> needs 2 APs to provide sufficient high-performance coverage.  I would like
> to provide guest and internal WiFi networks at both APs, so that both will
> be reasonably fast.
>
> I initially set up mesh mode according to wiki directions, and have it
> mostly up and running.  I can ping from a machine connected to the second
> router, across the mesh, to the first router and out to the internet.
>
> The problems I am experiencing are that
> 1) the second router by default isn't set to forward DNS requests to the
> first router, so I have to configure each of the interfaces manually to
> supply the IP of the primary router as the DNS server

? that's one line

> 2) both routers try to maintain DNS for home.lan and do not exchange
> information.

That is something of a problem. The right thing here would be to use subnets

downstairs.home.lan

upstairs.home.lan

so you can have the databases be correctly separated.

> 3) the Macs in the household go a little nuts when they change networks as
> they seem to detect the mdns repeater as a conflict when trying to assume
> ownership of the hostname on the new network.  My Mac's hostname has changed
> repeatedly to avoid the conflict and is now tesla-71.local.

stuart cheshire is starting up a project to make dns-sd with a hybrid
proxy work right, so we can git rid of the klugey multicast forwarding
causing this problem (on WAY more networks than just ceros, this is a
problem on many campus's worldwide) and actually use the defined
standard for dealing with multiple mdns subnets.

http://tools.ietf.org/html/draft-cheshire-mdnsext-hybrid-02

some code already exists as fallout of the homenet wg and was
demonstrated at ietf. It works...

It will be a huge relief to have this problem resolved sometime in the
near future. developers wanted!

>
> Is mesh the right way to go here?  What are best practices for tackling
> these issues?
>
> Thanks,
>   Kelvin
>
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-- 
Dave Täht

Fixing bufferbloat with cerowrt: http://www.teklibre.com/cerowrt/subscribe.html