Virtual machine cannot be connected

mithras · Post by **mithras** » 3. Oct 2008, 21:27

I have a Kubuntu Intrepid installation with Virtualbox 2.0.2 OSE installed. I created a vm with Ubuntu server.

I set up a bridge in /etc/network/interfaces, restarted the network and added the vbox0 interface. Because I have a laptop with almost every time a wlan0 up, the bridge is connected to wlan0. In the settings of the vm I set up a network interface connected to vbox0.

Output of ifconfig -a of my host system gives:

Code: Select all

jurian@karolina:~$ ifconfig -a
br0       Link encap:Ethernet  HWaddr 00:21:5c:51:8d:e1  
          inet addr:192.168.1.72  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::221:5cff:fe51:8de1/64 Scope:Link             
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1             
          RX packets:1528 errors:0 dropped:0 overruns:0 frame:0          
          TX packets:1316 errors:0 dropped:0 overruns:0 carrier:0        
          collisions:0 txqueuelen:0                                      
          RX bytes:1141257 (1.1 MB)  TX bytes:283861 (283.8 KB)          

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:184 errors:0 dropped:0 overruns:0 frame:0
          TX packets:184 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0                             
          RX bytes:12088 (12.0 KB)  TX bytes:12088 (12.0 KB)    

vbox0     Link encap:Ethernet  HWaddr 00:ff:3e:cf:0f:a6  
          inet6 addr: fe80::2ff:3eff:fecf:fa6/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:13 errors:0 dropped:0 overruns:0 frame:0
          TX packets:50 errors:0 dropped:25 overruns:0 carrier:0
          collisions:0 txqueuelen:500
          RX bytes:2862 (2.8 KB)  TX bytes:2134 (2.1 KB)

wlan0     Link encap:Ethernet  HWaddr 00:21:5c:51:8d:e1
          inet6 addr: fe80::221:5cff:fe51:8de1/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:8745 errors:0 dropped:0 overruns:0 frame:0
          TX packets:6578 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:9338891 (9.3 MB)  TX bytes:1105120 (1.1 MB)

wmaster0  Link encap:UNSPEC  HWaddr 00-21-5C-51-8D-E1-64-65-00-00-00-00-00-00-00-00
          UP BROADCAST RUNNING 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)

Typing 192.168.1.72 into Firefox gives a Page Load Error.

How can I connect from my host to my server? I'm quite a noob in virtual machines and networking, but I followed the manual as good as possible.

Did I do something wrong or did I forget something? Thanks for any help

Post by **Sasquatch** » 3. Oct 2008, 21:53

See the VirtualBox FAQ. Wifi + bridge won't work. Limitation of Bridge-utils.

mithras · Post by **mithras** » 3. Oct 2008, 22:10

Do you mean it is because of the bridge failure impossible to connect to the virtual machine if you own a laptop, or is it possible but not with bridging?

I have looked at FAQ, but it says nothing how to do it without bridging. Is there a workaround?
/edit. Ok, sorry for the quick reply. I found after some searching a guide to set it up. I have not tested it yet, but http://www.savvyadmin.com/virtualbox-wi ... with-dhcp/ seems to explain in detail how to get it to work.

Post by **Sasquatch** » 4. Oct 2008, 03:23

Yeah, that is a 'work-around' using parprouted. We didn't mention that specifically, because it involves some advanced setup and even I don't have experience with that. Why would be include something, if you can't properly support it, or can have major issues setting it up?

Good luck.

mithras · Post by **mithras** » 4. Oct 2008, 19:34

Ok, the solution worked. Maybe it's a good idea to mention it in the FAQ though. Ubuntu does it at their wiki: https://help.ubuntu.com/community/VirtualBox.
But thanks for your help. Is it ok I ask another one?

I have now connection to my virtual machine, e.g. i can enter the ip address of my vm and get the default apache page. My vm has unfortunately no internet connection. I have enabled a second network adapter with NAT, but that doesn't work. Is there a solution?

Post by **Sasquatch** » 5. Oct 2008, 02:02

If you can access your network using the parprouted method, and the whole network can access your VM, I don't see why it wouldn't work. You have to have the correct settings for DNS and Gateway for it to work

.

Setting up NAT should not give you any problems, though. And what doesn't work? You can't access http://www.google.com? Can you access http://66.249.91.147? If you can access the latter but not the first, your primary DNS of the Host doesn't work.