[Users] no VM network connection

[Assaf Muller]

Hi Will,

Do these new faulty VMs get IP from the DHCP server on subnet1? If so, can they ping their default gateway?

If you SSH into the hypervisor that hosts the new VM, do you see a new 'vnetX' device for it? If you type brctl showmacs <name of VM bridge>, do you see the MAC of the NIC of the VM that is connected to the VM network?

If you tcpdump bond1, do you see any outgoing VM traffic?

Assaf Muller, Cloud Networking Engineer 
Red Hat 


----- Original Message -----
From: "William Kwan" <potatok at yahoo.com>
To: users at ovirt.org
Sent: Wednesday, January 8, 2014 8:47:51 PM
Subject: [Users] no VM network connection

Hi all, 

Need some pointers here. I created one VM successfully with network connection. New VMs and clone can't seem to get network connections. 

I have ovirt 3.3.2-1.el6 on CentOS6.5. Two virtualization nodes are on 6.5 with GlusterFS. 
Both nodes have bond0 on management subnet and bond1 on subnet1. 
bond0 has an IP assigned and bond1 has no IP assigned (just link up) 

I created a VM with two NICs attached to two the logical networks. This VM1 works fine with both network connections. This VM can be started on either node fine with network connections. 

When I tried to build a new VM or build one from the template of VM1, I can't seem to get another network connection working on these new VMs. Yes, they have logical network attached to them. 

Thanks in advance, 

Will 



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