Set that up, the n800 says connected.

Internet sharing on the mac says that I am sharing internal modem connection (as I'm on hols that is what I'm using) to computers connected by airport.

Firewall is on, the Mac laptop can surf the net fine.

Using tcpdump I can see the n800 is trying to contact the outside world, but another tcpdump that is watching the ppp connection shows no packets are passing.

I can ping 10.0.2.1, and I can ping my ISP's DNS.

But I can't get out otherwise.

tcpdump tells me the n800 is trying to get to www.yahoo.com:

11:01:38.771898 IP 10.0.2.11.evtp > f1.www.vip.sp1.yahoo.com.http: S 3257834839:3257834839(0) win 5840 <mss 1460,sackOK,timestamp 349496 0,nop,wscale 1>

but there's no equivalent packets on the ppp side, so the internet sharing isn't working.

I turn off the firewall and suddenly it all works! Turn on the firewall again, stops working.

Sigh.

at home no problem as the ADSL modem handles both wireless and firewall. No bloody idea why Apple thought firewalling off the damned internal network they are supposed to be sharing was a good idea...

Zebee

I see a reasonably obvious warning saying to disable the firewall when I try to enable Internet sharing. Do you see that?

If it's there, it is not obvious Because no, I didn't see it.

And a quick check shows that I didn't see it because it isn't there.. Not in 10.3 anyway.

Zebee

hmmm my apologies for bringing up sort of an old thread, but I'm running into a wall...

Thanks to the excellent advice in this thread I was able to join my home network (One iMac sharing an Ethernet linked router connection over airport/wifi to two other iMacs), but I can't connect to the internet. I do not have any firewalls enabled and the other iMacs on the network connect to the 'net fine, so I know it's not a computer setting. I've messed with all the settings for the access point on the tablet and nothing seems to work. Any help would be much appreciated

I'm guessing he is using the built in ethernet interface to supply the internet connection to the Mac Mini.