I was trying to tether my iPhone 3G with iOS 4.1. I installed the ipheth-utils and managed to see the iphone attached message with "dmesg | grep iPhone" although device notifier never sees the phone. Also I was able to get the eth1 listed under ifconfig and I get the blue tethering visuals on my phone.
However I get no IP from the phone for my eth1 interface and static IPs don't work. Any ideas on how to get it working?