Re: dnsmasq-base does work for connection sharing

[Dan Williams <dcbw redhat com>]

On Tue, 2009-03-10 at 09:30 +0900, Jacobs Shannon wrote:
> > Not sure what I did differently this last time, but
> > dnsmasq-base (alone) is working properly for the 
> > connection sharing. I've noticed a few minor behavioral 
> > differences, but I think that's probably just
> > some differences in the security settings.
> > 
> > The other problems I mentioned are minor, and I can just live
> > with them for now. I'll work with this configuration for a 
> > few weeks and see how things go. 
> > 
> > Thanks again for your encouragement.
> 
> And sometimes it doesn't... Presumably whatever I saw last night was
> whatever was going on the first time when it didn't seem to be
> working. I don't know what state it is in, but various lesser
> solutions such as tweaking the configuration settings (in various
> orders) and restarting the network don't fix it. Nothing short of a
> full reboot seems to do the trick.
> 
> Whatever state it is in, the DHCP part seems to be working, and the
> gateway computer is connected normally, but none of the guest
> computers can reach the external network, though they can ping the
> gateway machine. I now realize that I didn't do quite enough testing
> to pin it to the DNS, but I'll check with an external IP address the
> next time I see it...

So that sounds more like iptables rules than anything to do with
dnsmasq.  dnsmasq will only provide DHCP and DNS, so you should still be
able to ping external addresses as long as dnsmasq is returning the
correct gateway to machines that perform DHCP requests.  What's the
routing table on a machine you're sharing to?

Dan