Opened 12 years ago

Closed 8 years ago

#11385 closed defect (obsolete)

No network connectivity between host and guests when using bridged adapters

Reported by: gnyers Owned by:
Component: network Version: VirtualBox 4.2.6
Keywords: Cc:
Guest type: all Host type: Linux


Using this setup:

VBox Host    |   VM1(win2008r2)      VM2(win7)        VM3(sles11sp2)
  [virbr0]   |      [net0]             [net0]            [eth0]
      |      |         |                 |                  |
   [eth0]    |
  [wlan0]    |

Problem: No connectivity between any of the VMs or host.

virbr0 is a virtual bridge.

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 12 00:20:48 dnsmasq-dhcp[28385]: DHCPDISCOVER(virbr0) 08:00:27:e2:25:11
Jan 12 00:20:48 dnsmasq-dhcp[28385]: DHCPOFFER(virbr0) 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 on openSUSE 12.2. But I had the same issue on 2 earlier versions of VBox and on openSUSE 12.1.

Change History (2)

comment:1 by kimus, 11 years ago

I have the same problem. With a Ubuntu 13.04 host (vbox 4.2.18) and a Ubuntu 12.04 guest VM. The VM never receives the DHCPOFFER from the guest dnsmasq. This was workig some time ago... not sure when :-)

Last edited 11 years ago by kimus (previous) (diff)

comment:2 by aeichner, 8 years ago

Resolution: obsolete
Status: newclosed

Please reopen if still relevant with a recent VirtualBox release.

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