Can't access internet from my LAN. Any clues please ?

[Andrew Lord]

Hi Tim,

> One part of your setup you didn't provide is firewall settings on the
> computer doing the dialup.

The dialup computer has a firewall and I've always had it set to allow Echo 
request (ping) as the only service that the internet can connect to, so that 
this machine can maintain an internet connection.

On the firewall, I have not enabled internet connection to the Domain Name 
Server: I understand this affects only connections from the internet to my 
computer, not from other computers on my LAN.

> You mentioned that you couldn't ping the dialup machine internally,
> which suggests a firewall rule blocking this, 

Yes, ip_forwarding is now enabled (see other post) and ping to ip numbers is 
now bringing about the expected response.

And so too now is pinging a domain name fromt he NSLU2: I had overlooked the 
Domain Name Servers on the NSLU2.  They're now pointing to the isp and so 
everything is now the go!

> also you will probably 
> need to set up IP Masquerading (or whatever it's called in Linux these
> days) to handle the network address translation (NAT).
>
> Good luck with it
>
> Cheers
>
> Tim