VirtualBox network bridge anomaly
I have VirtualBox installed on two machines. On the one machine the virtual machines have access to the internet. On the other they don't. I didn't configure a network bridge on either machine. The only significant things that are different are the motherboards and the kernels. The one that has access has a later version of 2.6.27. Any ideas why the one just automagically works?
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There's a dozen different reasons that could cause this. When you say it doesn't have access to the internet -- does it get a virtual ip (usually 10.0.0.0/8 netblock) from the host? Can you resolve IPs with dig or host? Are there any firewall rules in place on either box? Is either box multi-homed (multiple network connections)? What guest OSes are you using? Are you using NAT for networking on both?
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That's kind of jumbled, I guess. Sorry. But it does pretty much describe what's going on. I have no compelling reason that these need to work. It's just a toy to play with for a few days till I get bored with it. |
Matir, in case you see this, the problem went away. Now the guests on both hosts have internet access, and I didn't change anything that I can see, other than a kernel recompile. This is Lenny, though, so maybe it was some update that one got and the other didn't till later? I dunno.
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And, now, the system doesn't have access to the net again. I have no idea on this one. Any ideas would be really appreciated.
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vbox
This is perhaps beyond my ken but if vbox intermitant in it's web conection then maybe those details were being placed in the RAM and not on the 'hardrive'? Virtualisation does appear to be heavy on ram and however clumsy this may appear, anything to help.
Fred. |
Hi Fred. Sorry not to respond. I think I've traced the what down, but not the why. On the one that had been intermittent and then just stopped working: after trying a tap hooked to my wireless to no success (https://help.ubuntu.com/community/Vi...s%20Networking), I went back to NAT and manually set the gateway IP in the Windows Guest. It's been working reliably since. Why the other host machine didn't need that step is beyond me. I had tried this before but had mistakenly though I needed to have an IP in the Guest on the same subnet as the Host. When I left the Guest IP at discover automatically and set the gateway IP manually it worked fine.
cheers! |
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