Michael,

Thanks for the great diagram.

It looks to me, that if your wpa_supplicant box (small linux box: wlan0/eth0) 
NAT'ed the eth0 subnet to wlan0 then the AstLinux box would only see 
172.17.1.0/25 packets on the br1 interface, and all would be good.

Is that doable?

Some would argue that multiple subnets on the same segment is not good design.

Lonnie


On Jul 14, 2010, at 11:28 AM, Michael wrote:

> Lonnie Abelbeck wrote:
> 
>> Michael,
>> 
>> Could you provide some sort of diagram of your network configuration?
>> 
>> What interfaces have what networks attached?
>> 
> See attached diagram. I hope it is usable.
> 
> The main point is that I have a computer in another room without a LAN 
> cable. But I have a small linux box there that is connected to the astlinux 
> router via WLAN.
> 
> I connected the LAN connecter with the computer and configured a small 
> subnet here. It would have been easier to simply bridge WLAN0 and ETH0, but 
> then wpa_supplicant does not work.
> 
> So the computer gets a static IP in the subnet. Its gateway is the linux 
> computer. This one forwards all packages to the astlinux router.
> 
> This works, but the firewall on the astlinux router blocks all outgoing 
> traffic from the subnet because it only knows its local LANs.


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