Re: [9fans] [GSOC] port forwarding

[Charles Forsyth <charles.forsyth@gmail.com>]

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>
> The qemu instance needs to boot from the auth+fs server.


Note that qemu instance loads from an elf file, so it doesn't need to PXE
boot, which might make it a little simpler.
"Boot from" here means "root from ...".


On 12 June 2014 08:29, Nick Owens <mischief@9.offblast.org> wrote:

> yan,
>
> you need to set up some kind of bridge. there's a few options. in my
> setup, i use libvirt. with libvirt, i configured one vm with two NICs,
> one for the 'internet' and one for a private network between my
> cpu/auth/fs and a pxe booted vm for testing. i put ether0 on /net
> (private lan) and ether1 on /net.alt. in this way, i can pxe boot a vm
> from the first one, and it has internet access by importing /net.alt.
>
> in this way, i can change code, recompile on vm 1, and then boot vm 2
> over pxe to test, so i don't lose any state in vm 1 through reboots or
> crashes.
>
> http://www.linux-kvm.org/page/Networking describes various ways to
> configure networking in kvm.
> libvirt removes some of the manual work here required for configuring
> the bridges and interfaces of the vms.
>
> it's not very coherent but http://9.offblast.org/9front/guide/PXE_boot
> talks a little bit about my setup, except in the doc i say that i used
> /net for the NAT side and /net.alt for the private side. now i use the
> opposite.
>
> good luck.
>
> On Thu, Jun 12, 2014 at 12:52:33AM -0400, yan cui wrote:
> > Hi all,
> >
> >     I run into a situation that may need to setup the port forwarding
> rule,
> > but not quite sure. Hope you guys can provide some suggestions. Thanks in
> > advance!
> >
> > Basically, I have a virtual machine (KVM) working as plan9's fs+auth
> > server.
> > The auth+fs server listens the port 564 and uses NAT (network address
> > translation) to connect to the Internet.
> >
> > The virtual machine runs on a Linux box. On the same Linux machine,
> > I use qemu to execute an enhanced plan9 cpu server (with new features
> > included). The qemu instance needs to boot from the auth+fs server.
> > My question is, to make the boot successful, do I need to set any port
> > forwarding rules? If so, how to do that?
> >
> >
> > --
> > Think big; Dream impossible; Make it happen.
>

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