[LCtalk] Configure Mac for LanBox LCE and Airport Simultaneously

[James Nevin]

I am having difficulty getting the LanBox LCE to "talk" to my MacBook 
Pro (OS-X, 10.5) at the sametime I have an Airport connect to the 
Internet.

If I configure the Mac via Network Preferences to use Airport (DHCP 
automatic IP address), the Mac is assigned a local IP address in the 
198.168.1.X range.  My understanding was that this would be enough -- 
that I could then address the LanBox LCE on its default address of 
198.168.1.77

The above does not work, however. To "talk" to the LanBox LCE 
successfully, I find that I have to manually assign an IP address to 
the  Built-In Ethernet connection, say something like 198.168.1.2. 
Then I can address the LanBox LCE interface on its default address 
successfully. However, now the Airport connection no longer works.

Is there a way to have my Airport connection to the Internet and my 
connection to the LanBox LCE working simultaneously.  FYI, I am 
connecting the LanBox LCE directly to my Mac on the supplied Ethernet 
cable -- I am not using an intervening hub.

Thanks for any help!

James Nevin