Infrastructure Software

Hi, Experts,

I am really stuck up for the last week trying to sort out the network connectivity issue between Host And VIrtualBox.machines. Both have RHEL 6 installed.

I 've faced the same Issue few weeks back on the same Host machine where VIrtualBox wasn't able to established network connection. The Issue get resolved by disbling the xen Interface
suggested in this http://www.cyberciti.biz/faq/rhel-fedora-centos-linux-remove-network-interface-virbr0/ .
and The network connection between the Host and VirtualBox was establised. and It worked perfectly fine i 've even clone the Host EBS r12 DB to that VirtualBox.

I 'd to delete that VirtualBox machine as it was of 400GB size and created another machine of 200GB size. Installed the same OS which installed earlier i.e RHEL 6
also kept the same network configuration like IPs..
Now it failed to establish network connection to host machine.
I tried with AND Without disabling the xen enterface i .e
virsh # net-destroy default
on both Host machine and VIrtualBox. but when it didn’t work Than i remove yum groupremove “Virtualization” as well without any success.
Also i tried this too rpm -ev libvirt* on both Host & VirtualBox and removed that libvirt* rpm as well.

Both the machine can self ping itself but not to each other Also Firewall & iptable on both is disabled and stoped as well

Please see the following configuration of both the machines

The Host IP configuration:
root@ebs Desktop]# ifconfig
eth0 Link encap:Ethernet HWaddr 00:1E:67:22:2D:6E
inet addr:192.168.122.6 Bcast:192.168.122.255 Mask:255.255.255.0
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
Memory:d0100000-d0120000

eth1 Link encap:Ethernet HWaddr 00:1E:67:22:2D:6F
inet addr:192.168.122.3 Bcast:192.168.122.255 Mask:255.255.255.0
inet6 addr: fe80::21e:67ff:fe22:2d6f/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:12343 errors:0 dropped:0 overruns:0 frame:0
TX packets:12451 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:10079134 (9.6 MiB) TX bytes:2473157 (2.3 MiB)
Memory:d0000000-d0020000

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:65 errors:0 dropped:0 overruns:0 frame:0
TX packets:65 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:4920 (4.8 KiB) TX bytes:4920 (4.8 KiB)

vboxnet0 Link encap:Ethernet HWaddr 0A:00:27:00:00:00
inet addr:192.168.122.13 Bcast:192.168.122.255 Mask:255.255.255.0
inet6 addr: fe80::800:27ff:fe00:0/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:146 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 b) TX bytes:20710 (20.2 KiB)

THE VIRTUALBOX IP Configuration: VirtualBox configured with Host-only-Adapter.

*[root@idmebs Desktop]# ifconfig*
eth0 Link encap:Ethernet HWaddr 08:00:27:47:43:66
inet addr:192.168.122.10 Bcast:192.168.122.255 Mask:255.255.255.0
inet6 addr: fe80::a00:27ff:fe47:4366/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:3 errors:0 dropped:0 overruns:0 frame:0
TX packets:44 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:246 (246.0 b) TX bytes:5297 (5.1 KiB)

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:25 errors:0 dropped:0 overruns:0 frame:0
TX packets:25 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:1828 (1.7 KiB) TX bytes:1828 (1.7 KiB)


The /etc/hosts & /etc/resolv.conf files of both the machines are also in sync.

Really Apprecaite any suggestion on the Issue. Kindly suggest.



Thanks & Regards
Priya