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Create a secure Linux-based wireless access point

Posted by: Anonymous [ip: 198.168.30.15] on March 07, 2008 12:44 AM
Pardon my Linux newbee question...

I would like to know if the solution presented above can be extended to this:

LAN side WAN side
__________
[pc a]------ ethernet -------| |
|cell modem|------cellular network wan------[host]
[pc b]------- wifi -------------|__________|

The cell modem would be a self-contained device, not an aircard plugged into a PC.
It would use MadWIFI, an Atheros WiFi chipset and Timesys Linux 2.6.19

I would only need to forward traffic between [pc a]<--->[host] and [pc b]<--->[host];
[pc a]<--->[pc b] would be a bonus but would not be required.

I would also like to have the cell modem DHCP server provide addresses to both
the ethernet and the WiFi segments.

Is this possible on Timesys Linux 2.6.19 / MadWifi ?
does it require bridging the ethernet and WiFi interfaces as described above ?

Optionally, I could handle the wifi segment as a distinct user-assigned subnet,
just like the user-assigned ethernet subnet and carrier-assigned cell subnet.
In this case, can the DHCP server assign addresses to both LAN subnets ?

Thanks !

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