[Bug 865515] Re: virtual machines should not have nat on servers

[Ian Jackson]

Dave Walker writes ("[Bug 865515] Re: virtual machines should not have nat on servers"):
> @Ian, If i understand the bug report correctly, this would seem to be a
> generic bug regarding the default networking option setup as part of
> libvirt.  If this is the case, I agree it's not a great ideal for
> servers - but also not an unreasonable default for the platform as a
> whole use case.

I agree with this.  But the default should be different for servers
and desktops/laptops.

> I haven't checked for other virtulisation methods, but I imagine it is
> similar.  It is easy enough to provide a chosen networking model, so I'm
> not fully convinced this is a valid bug.

The existence of virbr0 convinces the Xen startup script, in the
default configuration, not to do its own networking arrangements.
Instead, since there is already a bridge, it causes all the VMs to use
it, on the principle that if there is a bridge it should probably be
used.

Ian.

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https://bugs.launchpad.net/bugs/865515

Title:
  virtual machines should not have nat on servers

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