Management addresses on XenServers

2013-10-03 Thread David Comerford
Hi,

Why do system VM's on XenServer in a Basic networking zone require a
link-local address AND a private IP from the management range?

Best regards,
David Comerford

Tel: +353 87 1238295
Email: davest...@gmail.com
Website: http://dave.ie
GPG key: http://gpg.dave.ie


Re: Management addresses on XenServers

2013-10-03 Thread Geoff Higginbottom
David,

Link local is so that the management server can talk to them, and the private 
(management) address is so they can talk to the management server.

The Virtual Router has no private address so the standard way that CloudStack 
management servers talk to all system VMs is via link local.

SSVM and CPVM have a private address and they use this when thy initiate comms 
to the management server, using the address specified in the 'host' global 
setting' which should be a load balanced ip if you have more than one 
management server.

The exception to this is if using VMware which does not have a link local 
network, in which case the equivalent VIF on the vm is allocated a private ip 
range, but of course basic networking does not work with VMWare so we can 
ignore that for now.

Regards

Geoff Higginbottom
CTO / Cloud Architect


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On 3 Oct 2013, at 22:02, David Comerford 
davest...@gmail.commailto:davest...@gmail.com wrote:

Hi,

Why do system VM's on XenServer in a Basic networking zone require a
link-local address AND a private IP from the management range?

Best regards,
David Comerford

Tel: +353 87 1238295
Email: davest...@gmail.commailto:davest...@gmail.com
Website: http://dave.ie
GPG key: http://gpg.dave.ie
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