I downloaded the Hansoon 40GB NC VM from here:
I unzipped the download to get the .ova which I then tar -xvf to yield the two disk files.
I converted these to .qcow2 via qemu-utils to get two files suitable for KVM QEMU (on a CentOS host).
The VM booted but I cannot get networking to work. The interface ens3 does not have an IP address and the link is down. I attached an IPv4 address and brought the interface up. This allows me to ping the local network and to use nslookup to resolve addresses. I can log in to the VM via SSH no problem. I suspected a firewall problem but service ufw stop does not help. Anything like curl or wget just results in ‘network unreachable’ despite the fact that it isn’t. I have tried macvtap, bridged, NAT and all flavours of NIC emulation/routing including E1000/RTL8139/Hypervisor default.
In desperation, I suspected that not using the OVF file to create the machine was the problem so I repeated the above with a VirtualBox Oracle setup on Windows 7 x64 which is native for OVF, but this has an identical problem.
I run a lot of VMs and none of them have problems accessing the web.
What is the problem? TIA