Re: [ntp:questions] NTP to multiple networks via one interface.

2013-12-15 Thread sc0tt . v3rn0n
On Friday, 13 December 2013 15:08:43 UTC+11, sc0tt@gmail.com  wrote:
 Hi,
 
 
 
 We have a xenserver host.  We manage it via an interface on x.x.75.x which is 
 the only network that is actually plumbed in on the host.  It has other 
 interfaces but they are virtualised by xen and don't have IP's.
 
 
 
 We have several VM's on this host on the same x.x.75.x network so we have set 
 the xenserver to broadcast ntp (it syncs from network switches) and the VM's 
 to be broadcast clients .  NTP is working ok in this scenario.
 
 
 
 However we've added a new network to xenserver on x.x.69.x but VM's on this 
 network don't receive the NTP broadcast packets as they don't have an 
 interface on the x.x.75 network.
 
 
 
 Is there any way to get the NTP packets to all VM's without dual homing 
 either the xenserver or the VM's.
 
 
 
 Thanks in advance,
 
 
 
 Scott

Thank you all for your replies.  I just attempted to add a new broadcast 
address to the ntp.conf of Dom0 but that highlighted a loop somewhere in our 
test network that caused a broadcast storm.

I need to fix that before i move any further with ntp.

Thanks again,

Scott

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[ntp:questions] NTP to multiple networks via one interface.

2013-12-12 Thread sc0tt . v3rn0n
Hi,

We have a xenserver host.  We manage it via an interface on x.x.75.x which is 
the only network that is actually plumbed in on the host.  It has other 
interfaces but they are virtualised by xen and don't have IP's.

We have several VM's on this host on the same x.x.75.x network so we have set 
the xenserver to broadcast ntp (it syncs from network switches) and the VM's to 
be broadcast clients .  NTP is working ok in this scenario.

However we've added a new network to xenserver on x.x.69.x but VM's on this 
network don't receive the NTP broadcast packets as they don't have an interface 
on the x.x.75 network.

Is there any way to get the NTP packets to all VM's without dual homing either 
the xenserver or the VM's.

Thanks in advance,

Scott

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