I have followed the various guides on the internet relating to this, but cannot get any connectivity.

I have a 2.4GHz Macbook running Leopard fully patched, and a brand new iPod Touch (2.2.1 out of the box I think) - not jailbroken or anything (in fact, zero modifications - just synced with iTunes for Music/Movies/Photos.

I have a good working internet connection via bluetooth on the Macbook.

I can share the bluetooth connection to the Airport Express.

I can find the new Airport Express based 'access point', and connect, either openly, or with WEP (yuk), depending on the security settings I choose.

But I dont get any connectivity through to the internet on the iPod Touch.

I think it may be to do with IP addressing? If sharing from the ethernet port, I guess the Ipod would get DHCP from the router the Macbook is connected to, but in this case, there is no router - just an OKTA Touch connected via bluetooth.

I understand IP networking, and have tried all combinations of DHCP/Static addressing, DNS servers, and gateways (and netmask). The WiFi side connects just fine, but I just cant connect to internet, mail, appstore, ITMS etc.

I am totally confident that it would work through ethernet+router, but yet to prove that.

Anyone else using a bluetooth connection on their Apple Mac to give WiFi connectivity to their iPod Touch or iPhone?