ICS confusion (OS X)

[jetpilot]

Hi there,

First post...

I have a question as I'm slightly confused :)

I'm using my Mark IV Pineapple (v3.0.0) with OS X Lion. There are many instructions on the Internet on how to configure the Ethernet adapter and enable connection sharing.

My setup is such that on my Mac I connect to the Internet via WiFi. Then I use the Ethernet cable to connect the Pineapple from the LAN/PoE port to the Mac's Ethernet port. I have configured the Mac's Ethernet port with the fixed IP address 172.16.42.42 etc and have enabled ICS from WiFi to Ethernet.

It is also a known problem that Internet Connection Sharing (ICS) does not quite work with the Pineapple on OS X. Indeed I cannot access the Internet from the Pineapple when I SSH into the Pineapple and for example try to ping www.google.com. I also cannot download any infusions in this way through the Web interface (I can connect to the web interface from the Mac by browsing to 172.16.42.1:1471.

However, I can connect with a 3rd device (iPhone) to the Pineapple's WiFi and for example browse the Internet from the iPhone.

Why am I able to connect from my iPhone via the Pineapple to the Internet, but not directly from the Pineapple using the same configuration?

Any info greatly appreciated as I am a bit puzzled :)

Many thanks!