[BlueOnyx:01955] Re: IP Addressing on sites

[Chris Gebhardt - VIRTBIZ Internet]

Chuck Tetlow wrote:
> Hi BlueOnyx experts.  Maybe one of you know a resolution to a IP 
> Addressing problem.
> 
> One of the companies has a bunch of BlueQuartz servers that they've got 
> me converting to BlueOnyx.  But BlueOnyx has the IP addressing issue 
> BlueQuartz had.  Specifically, whatever IP address you put on the box 
> (eth0) - it copies that same netmask to the IPs for the sites.
> 
> Since this company wants to keep all the "box" addresses in a similar 
> network, they have a /28 network for their virtual servers.  Then they 
> assign a class-C  /24 block to the sites on each server.  The problem is 
> the BlueOnyx keeps the same /28 subnet mask on the subinterfaces for the 
> sites.  And that means that we loose the ability to use two IPs out of 
> every 16 (its considering one of them a network identifier and one a 
> broadcast).

That sounds pretty strange.   Why don't they just assign you your own 
subnet?  That's the way it ought to be done.

> So, what I'm looking for is a way to set the netmask on the 
> subinterfaces for the sites.  In the past, I've spent a lot of time 
> going through each ifcfg-eth0:xx with VI correcting the mask and 
> broadcast IPs.  Then to prevent the system modifing those interfaces 
> again the next time a site was added - I had to set the immutable bit on 
> them.  Which of course means that I'm the only one that can delete a 
> site - because I have to turn that off first.  Not a good fix.  But I 
> don't know any other method.
> 
> Does anyone know how to change the netmask and broadcast on all the 
> subinterfaces - and get the management GUI to use something other than 
> what is assigned to eth0 (when creating new sites)??

Sounds like so long as you're set with a goofy network config from your 
upstream, that's the way it's going to have to roll.

That said, I think I've had customers put boxes on different networks 
(ie: we'll assign a customer a /28 and a /27) and they'll pick various 
IP's to put on eht box(es).  So long as one of the GW's is functional, 
it's all good.   I'm going from memory on that one, though, and I'm off 
on vacation, so... YMMV!  :)

-- 
Chris Gebhardt
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