RE: Internet Connection Sharing

[Dan Williams <dcbw redhat com>]

On Wed, 2009-12-09 at 03:36 +0000, Joseph L. Casale wrote:
> >Basically, you need an existing connection to the internet.  Then you create another "shared" connection that your other computers will access.  When you have both of those, >then NM will start dnsmasq and everything and NAT the "shared" connection to the main internet connection.
> >
> >If you've already got an internet connection, then just choose "Create new wireless network..." from the menu, type in the details, and it should set that new network up.  You >can then connect to that adhoc wifi network from other computers, and they will get IP addresses via DHCP from your machine.
> 
> Dan,
> Just to clarify, does nm actually instantiate a dhcp server, and create the subnet etc?
> I don't have a dhcp server installed, but I do have dnsmasq installed.

Yes, NM will do all these things.  dnsmasq is both a caching DNS server
and a lightweight DHCP server.  So NM just uses it for both functions.

> I have a wired connection that has internet access through a firewall behind it, yet
> nothing I do is making this connection sharing work:)

Can you grab logs from /var/log/messages or /var/log/daemon.log for me
that show the issue?  That will help isolate things.

Dan