Re: [xcat-user] how to handle multiple subnets

Tue, 06 Oct 2015 02:53:41 -0700

Thank you Russell and Nick. Your suggestions worked.
 
I also had to specify tftpserver in the networks table.
 
Thank you,
John Keenleyside
 
----- Original message -----
From: Nick Evans <[email protected]>
To: xCAT Users Mailing list <[email protected]>
Cc:
Subject: Re: [xcat-user] how to handle multiple subnets
Date: Sun, Oct 4, 2015 11:06 PM
 
In the networks table where you define the network range the mgtifname value needs to be set to '!remote!'
Make you you have the routes define properly in the route table
 
and finally your dhchpinterfaces in the site table needs to include !remote! in the list.
 
Try that and see if it makes a difference
 
Nick
 
On 5 October 2015 at 13:31, Russell Auld <[email protected]> wrote:

Did you try “dhcpinterfaces” in the site table?

See my thread from this past July 27 entitled:

“Is there a way to add outside subnets to dhcpd.conf?”

 

 

From: John Keenleyside [mailto:[email protected]]
Sent: Sunday, October 4, 2015 9:48 PM
To: [email protected]
Subject: [xcat-user] how to handle multiple subnets

 

In my environment, each rack of machines is in its own subnet. I have xCAT management node installed in rack 1 which uses subnet 1. I can install machines in this rack with no problem. Now I am trying to install machines in a second rack with subnet 2 using the xCAT management node located in rack1/subnet1.

 

The networks table has both subnets defined in it. However, makedhcp -n is only generating a definition for subnet1 in the dhcpd.conf file. The dhcp server gives an unknown network segment error when a dhcpdiscover comes in from rack2. So I need to have subnet2 defined as well in the dhcpd.conf file. How do I do this?

 

Is it possible for the xCAT management node to install servers in multiple subnets?

Does anyone have a working example they could describe or share ?

 

Thanks,
John Keenleyside

 


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