[one-users] opennebula 3.0 virtual networks assign IPs out of allocated RANGE

[Carlos Martín Sánchez]

Hi,

The ranged network definition in OpenNebula 3.0 can be a bit confusing,
because the NETWORK_ADDRESS is not the first IP, but rather the base
address to use for the range.

In your case, for 96 addresses the base address is 10.206.223.0, giving you
the range 10.206.223.1 to 10.206.223.96. You can see a similar question
here [1].


This has been improved in OpenNebula 3.2, see [2] for the complete syntax.
For example, you can set the first IP of the range:

NETWORK_ADDRESS = 10.206.223.0/24
IP_START        = 10.206.223.96

Regards.

[1]
http://lists.opennebula.org/htdig.cgi/users-opennebula.org/2011-April/005021.html
[2]
http://opennebula.org/documentation:rel3.2:vnet_template#ranged_virtual_networks




--
 Carlos Martín, MSc
Project Engineer
OpenNebula - The Open Source Toolkit for Data Center Virtualization
www.OpenNebula.org | cmartin at opennebula.org |
@OpenNebula<http://twitter.com/opennebula><cmartin at opennebula.org>


On Mon, Jan 9, 2012 at 2:12 PM, Chris Picton <chris at ecntelecoms.com> wrote:

> Hi
>
> I have the following vnet:
>
> oneadmin at one-mgr ~ $ onevnet show 16
> VIRTUAL NETWORK 16
> INFORMATION
> ID             : 16
> USER           : oneadmin
> GROUP          : oneadmin
> PUBLIC         : No
> USED LEASES    : 1
>
> VIRTUAL NETWORK
> TEMPLATE
> BRIDGE=vbr0
> NAME="VLAN 3223 Dynamic"
> NETWORK_ADDRESS=10.206.223.96
> NETWORK_SIZE=96
> NET_DNS="10.202.3.110,10.202.3.111"
> NET_GW=10.206.223.1
> NET_NM=255.255.255.0
> NET_NW=10.206.223.0
> TYPE=RANGED
> VLAN_ID=3223
>
> LEASES
> INFORMATION
> LEASE=[ IP=10.206.223.1, MAC=02:00:0a:ce:df:01, USED=1, VID=166 ]
>
> As you can see, a lease was assigned outside of the specified range:
>
> NETWORK_ADDRESS=10.206.223.96
> NETWORK_SIZE=96
>
> I understand NETWORK_SIZE to be the number of addresses I want to
> allocate. Is this correct, or should it me a prefix-style mask (/26 for
> example)?
>
> Thanks
> Chris
>
>
> _______________________________________________
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> Users at lists.opennebula.org
> http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
>
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