I've been casually working on this for a few months but I'm finally getting frustrated enough to post about it.
I was wondering if it was possible to share the tethered internet connection that comes stock on Android phones with 2.2 with an additional laptop? To be clear, I want to have a laptop receiving a tethered internet connection from a 2.2 Android phone and I want to share that with another laptop connected through Ethernet. Specifically, I'm trying to do this on Ubuntu Linux 10.10.
I have gotten this to work on Windows 7 using EasyTether and the Windows ICS but unfortunately I need this to work on Ubuntu Linux. Note, this really doesn't help me because I would really like this to work as a legitimate network, when I use EasyTether to share the connection, I cannot ping the other laptop, which makes me think they are connected in a different manner besides routes. Also note, The EasyTether and Ubuntu's ICS through Network Manager does not work.
The latest thing I have tried is to set up a bridge between the phone's network interface and the 2nd laptop's interface. This allows me to ping to the phone from the second laptop. However, this disables the internet the laptop the phone is connected to and I certainly can't get on the internet on the second laptop.
So, I guess what I'm asking is: is this sort of thing even possible? If anyone has any suggestions, advice, or links, I would be glad to listen.