Re: [Xen-users] Xen 3: Functional NAT Possible?

[Jeff Utter <jeffutter.lists@xxxxxxxxx>]

Ian Pratt wrote:
>  
>
> > 	I have been trying for days now to get a working nat 
> > setup with my domU's using the default nat scripts.
> Just look at what the demo CD does for a nice example of how to set up
> NAT.
>
> Ian
>  
	Ok, i checked that out, and it seemed to help me figure it out a lot. 
It looks like the key i was missing was having dhcp=dhcp in my xend 
config. Now each time a vm starts up it edits my dhcpd config and sets 
it up for that VM and the vm gets an ip and is setup to connect to the 
Internet. Wonderful.
	The problem still remains though, that each new VM i setup... or even 
if i stop a vm and start it, it ends up with a different ip. This makes 
the vm's pretty useless if i want to forward ports to the vms. I always 
specify mac id's for my vms:
vif = [ 'mac=00:50:22:22:22:02']

if i specify an ip aswell:

vif = [ 'mac=00:50:22:22:22:02, ip=10.0.1.2']

when i try to start that vm it complains something about vif 0 not being 
able to start
if i try to write my own host rule in my dhcpd config specifying an ip 
for that vm by mac id... if the vm starts on vif 15.0, on dom0 the ip 
will be 10.0.15.1 the domU would get 10.0.1.2 from the dhcp server, 
however the domU won't be able to access the Internet at all.
so.. i'm getting close, any more ideas?

Thanks,
Jeff

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