Hi,
+cc back to the list
Mark Steckel <m...@fix.net> writes:
> Hi Derek,
>
> I solved the first networking issue by changing how Hetzner config'ed
> the /32 on the host. (They were scoping the IP to the gateway which
> was confusing OVirt.)
>
> So now I'm trying to get the /29 working for the VMs... continue below.
Okay..
[snip]
> In the case of Hetzner, they provide the /29 and expect that the gw, the
> first usable IP of the /29, will be on the host and not the router. At least
> this is what I get from their docs. Effectively.
>
> /32 /32
> router ----------- host ---- VMs
> /29 /29
>
> To test things I manually created an alias on the ovirtmgmt dev for the /29
> gw IP and can ping it from the outside world. So basic routing seems to route
> for the /29.
>
> Since OVirt seems to be constrained on the network configs it can deal with,
> my question is how should I permanently config the /29 gw IP (ie on eth0 or
> ovirtmgmt) and what do I need to do to set up the /29 IPs for the VMs?
I've never tried setting multiple IPs on my ovirtmgmt bridge on the
host. But you shouldn't have to do that. It's a bridge, after all, so
all systems that sit on that bridge (which include your VMs) will be
equivalent.
In my case I have an external router that gets used for both of my
networks (I have a 192.168 network as well as a full class-C but they
share physical infrastructure). So my host only has a 192.168 address,
my engine is on the class-C, and they talk to each other over the
standard network.
In your case it *SOUNDS* like you need to set up an internal router for
the /29. The way I would do it would be:
/32 /32 /29 bridge +--- host (/29)
ISP-Router ------- internal-router ----------+--- VM (/29)
+--- VM (/29)
I don't know if you can actually do this. If not, your other option
would be:
/32 bridge +--- host (/32)
router -----------+--- VM Router (/29) (pfsense?)
+--- VM (/29)
This may not work for you, either, depending.
WORST case you may need to manually configure a second IP on the
ovirtmgmt bridge on your host:
/32 bridge +--- host (/32 + /29)
router -----------+--- VM (/29)
+--- VM (/29)
I would do this by manually creating the config file on your host:
/etc/sysconfig/network-scripts/ifcfg-ovirtmgmt:0
> Thanks
> Mark
-derek
--
Derek Atkins 617-623-3745
de...@ihtfp.com www.ihtfp.com
Computer and Internet Security Consultant
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