Hi All,
I'm hoping for some useful suggestion on how to troubleshot these problems on VirtualBox:
- No VM is able to reach the VBOx host and
- No VM can reach any other VMs
- No VMs can be reached from the VBox host
By "reach" I mean: no ping or any TCP connection.
Also: this problem only occurs when the VM network interfaces are in Bridged mode. When using e.g. NAT or internal network, there is no problem at all.
The network adapters of the VMs are connected to the VBox host's virb0 bridge adapter:
Code:
|
VBox Host | VM1(win2008r2) VM2(win7) VM3(sles11sp2)
[virbr0] | [net0] [net0] [eth0]
| | | | |
+----------------+-----------------+------------------'
|
[eth0] |
|
[wlan0] |
|
However: strangely enough, dnsmasq (running on the VBox host's virbr0 adapter) is seeing DHCPDISCOVER requests coming in on the bridge interface and sends DHCPOFFERS:
Jan 8 00:20:48 dnsmasq-dhcp[28385]: DHCPDISCOVER(virbr0) 08:00:27:e2:25:11
Jan 8 00:20:48 dnsmasq-dhcp[28385]: DHCPOFFER(virbr0) 192.168.110.136 08:00:27:e2:25:11 Those DHCPOFFERs are not seen by the VMs, since all of them remain unconnected.
I'm currently running VirtualBox 4.2.6 (vanilla download from
http://dlc.sun.com.edgesuite.net/vir...4-1.x86_64.rpm)
on openSUSE 12.2. But I had the same issue on 2 earlier versions of VBox and on
openSUSE 12.1.
Some diagnostics:
- the vboxdrv service is running, but:
Code:
# /etc/init.d/vboxdrv status
redrecting to systemctl
vboxdrv.service - LSB: VirtualBox Linux kernel module
Loaded: loaded (/etc/init.d/vboxdrv)
Active: active (exited) since Tue, 08 Jan 2013 00:35:10 +0100; 10min ago
CGroup: name=systemd:/system/vboxdrv.service
I've tried to restart this service, but that's all it is giving me... Btw, when restarting, this is what I see in
/var/log/messages:
Code:
# /etc/init.d/vboxdrv restart
redirecting to systemctl
Jan 8 00:48:19 lupus vboxdrv[1114]: Stopping VirtualBox kernel modules..failed
Jan 8 00:48:19 lupus vboxdrv[1114]: (Cannot unload module vboxnetflt)
Jan 8 00:48:19 lupus kernel: [97673.171219] vboxpci: IOMMU not found (not registered)
Jan 8 00:48:19 lupus vboxdrv[1143]: Starting VirtualBox kernel modules..done
Is this the problem here? How to solve it?
Btw: these VirtualBox processes are running:
[CODE]# ps -ef|grep -i vbox
root 23967 9298 0 13:11 pts/2 00:00:00 grep --color=auto -i vbox
root 31932 1 0 Jan07 ? 00:00:16 /usr/lib/virtualbox/VBoxXPCOMIPCD
root 31938 1 0 Jan07 ? 00:00:37 /usr/lib/virtualbox/VBoxSVC --auto-shutdown[CODE]
Code:
# lsmod | grep -i vbox
vboxpci 27253 0
vboxnetadp 25670 0
vboxnetflt 23442 2
vboxdrv 336800 5 vboxpci,vboxnetadp,vboxnetflt
Code:
# brctl show
bridge name bridge id STP enabled interfaces
virbr0 8000.0021cc634e9a no eth0
Code:
# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.1.1 0.0.0.0 UG 0 0 0 wlan0
192.168.110.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0
192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 wlan
- finally, no firewall rules are active:
Code:
# iptables -L
Chain INPUT (policy ACCEPT)
target prot opt source destination
Chain FORWARD (policy ACCEPT)
target prot opt source destination
Chain OUTPUT (policy ACCEPT)
target prot opt source destination
Thanks,
Gábor
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