Re: [lxc-users] What is the state of the art for lxd and wifi ?

[john]

On 07/23/2018 06:47 AM, Pierre Couderc wrote:


On 07/23/2018 12:37 PM, Fajar A. Nugraha wrote:
On Mon, Jul 23, 2018 at 5:33 PM, Pierre Couderc > wrote:



On 07/23/2018 12:12 PM, Fajar A. Nugraha wrote:

Relevant to all VM-like in general (including lxd, kvm and
virtualbox):
- with the default bridged setup (on lxd this is lxdbr0),
VMs/containers can access internet
(...)
- bridges (including macvlan) does not work on wifi



Sorry, it is not clear for me how default bridges "can access
internet",  if simultaneously "bridges (including macvlan) does
not work on wifi" ?



My bad for not being clear :)

I meant, the default setup uses bridge + NAT (i.e. lxdbr0). The NAT 
is automatically setup by LXD. That works. If your PC can access the 
internet, then anything on your container (e.g. wget, firefox, etc) 
can access the internet as well.



Bridge setups WITHOUT nat (those that bridge containers interface 
directly to your host interface, e.g. eth0 or wlan), on the other 
hand, will only work for wired, and will not work for wireless.




Mmm, do you mean that there is no known solution to use LXD with wifi ?

Based on what has been indicated here and my own understanding there are 
two high level ways you can access the network:  1) bridge + NAT and 2) 
containers directly access the host interface.


With option 1 the container can access the network via the host even if 
that host interface is wifi based.   You will configure the wifi on the 
host.



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Re: [lxc-users] What is the state of the art for lxd and wifi ?

[Pierre Couderc]

On 07/23/2018 12:37 PM, Fajar A. Nugraha wrote:
On Mon, Jul 23, 2018 at 5:33 PM, Pierre Couderc > wrote:



On 07/23/2018 12:12 PM, Fajar A. Nugraha wrote:

Relevant to all VM-like in general (including lxd, kvm and
virtualbox):
- with the default bridged setup (on lxd this is lxdbr0),
VMs/containers can access internet
(...)
- bridges (including macvlan) does not work on wifi



Sorry, it is not clear for me how default bridges "can access
internet",  if simultaneously "bridges (including macvlan) does
not work on wifi" ?



My bad for not being clear :)

I meant, the default setup uses bridge + NAT (i.e. lxdbr0). The NAT is 
automatically setup by LXD. That works. If your PC can access the 
internet, then anything on your container (e.g. wget, firefox, etc) 
can access the internet as well.



Bridge setups WITHOUT nat (those that bridge containers interface 
directly to your host interface, e.g. eth0 or wlan), on the other 
hand, will only work for wired, and will not work for wireless.




Mmm, do you mean that there is no known solution to use LXD with wifi ?
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Re: [lxc-users] What is the state of the art for lxd and wifi ?

[Fajar A. Nugraha]

On Mon, Jul 23, 2018 at 5:33 PM, Pierre Couderc  wrote:

>
> On 07/23/2018 12:12 PM, Fajar A. Nugraha wrote:
>
> Relevant to all VM-like in general (including lxd, kvm and virtualbox):
> - with the default bridged setup (on lxd this is lxdbr0), VMs/containers
> can access internet
> (...)
> - bridges (including macvlan) does not work on wifi
>
>
> Sorry, it is not clear for me how default bridges "can access internet",
> if simultaneously "bridges (including macvlan) does not work on wifi" ?
>
>

My bad for not being clear :)

I meant, the default setup uses bridge + NAT (i.e. lxdbr0). The NAT is
automatically setup by LXD. That works. If your PC can access the internet,
then anything on your container (e.g. wget, firefox, etc) can access the
internet as well.


Bridge setups WITHOUT nat (those that bridge containers interface directly
to your host interface, e.g. eth0 or wlan), on the other hand, will only
work for wired, and will not work for wireless.

-- 
Fajar
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Re: [lxc-users] What is the state of the art for lxd and wifi ?

[Pierre Couderc]

On 07/23/2018 12:12 PM, Fajar A. Nugraha wrote:

Relevant to all VM-like in general (including lxd, kvm and virtualbox):
- with the default bridged setup (on lxd this is lxdbr0), 
VMs/containers can access internet

(...)
- bridges (including macvlan) does not work on wifi


Sorry, it is not clear for me how default bridges "can access 
internet",  if simultaneously "bridges (including macvlan) does not work 
on wifi" ?


My PC has no ethernet only wifi.

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Re: [lxc-users] What is the state of the art for lxd and wifi ?

[Christian Brauner]

On Mon, Jul 23, 2018 at 05:12:09PM +0700, Fajar A. Nugraha wrote:
> On Mon, Jul 23, 2018 at 5:08 PM, Pierre Couderc  wrote:
> 
> > Where can I find a howto for lxd on a an ultramobile with wifi only ?
> >
> > I find some posts aged 2014 and more modern posts saying it is not
> > possible with wifi.
> >
> > I want to install many containers accessing internet, or being acessed
> > from internet.
> >
> >
> >
> >
> 
> Relevant to all VM-like in general (including lxd, kvm and virtualbox):
> - with the default bridged setup (on lxd this is lxdbr0), VMs/containers
> can access internet
> - to make it accessible FROM internet, you need (the easy way) to setup
> port forwarding/NAT (e.g. using iptables on the host)

You could also look whether our proxy device type will help you out with
that: https://github.com/lxc/lxd/blob/master/doc/containers.md#type-proxy

Christian

> - bridges (including macvlan) does not work on wifi
> 
> -- 
> Fajar

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Re: [lxc-users] What is the state of the art for lxd and wifi ?

[Fajar A. Nugraha]

On Mon, Jul 23, 2018 at 5:08 PM, Pierre Couderc  wrote:

> Where can I find a howto for lxd on a an ultramobile with wifi only ?
>
> I find some posts aged 2014 and more modern posts saying it is not
> possible with wifi.
>
> I want to install many containers accessing internet, or being acessed
> from internet.
>
>
>
>

Relevant to all VM-like in general (including lxd, kvm and virtualbox):
- with the default bridged setup (on lxd this is lxdbr0), VMs/containers
can access internet
- to make it accessible FROM internet, you need (the easy way) to setup
port forwarding/NAT (e.g. using iptables on the host)
- bridges (including macvlan) does not work on wifi

-- 
Fajar
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[lxc-users] What is the state of the art for lxd and wifi ?

[Pierre Couderc]

Where can I find a howto for lxd on a an ultramobile with wifi only ?

I find some posts aged 2014 and more modern posts saying it is not 
possible with wifi.


I want to install many containers accessing internet, or being acessed 
from internet.


Thanks

PC

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