On Wed, Aug 22, 2018 at 08:16:30AM +0100, Tom Smyth wrote:
> Hi Jiri
> 
> Protected domains are like protected ports on a switch
> two ports that are in the bridge with the same protected domain
> will not be able to communicate with each other,
> 
> Protected domains are implemented on the Bridge but not on
> Switch  in OpenBSD
> 
> Bridge Protected domain does work from 6.3 and up
> here is the output of my bridge config
> cat /etc/hostname.bridge101
> up
> maxaddr 16384 timeout 300
> add vio0 -stp vio0
> add vlan3993 protected vlan3993 1 -stp vlan3993
> add vlan3994 protected vlan3994 1 -stp vlan3994
> add vlan3995 protected vlan3995 1 -stp vlan3995
> add vlan3996 protected vlan3996 1 -stp vlan3996
> add vlan3997 protected vlan3997 1 -stp vlan3997
> add vlan3998 protected vlan3998 1 -stp vlan3998
> add vlan3999 protected vlan3999 1 -stp vlan3999
> add vlan4000 protected vlan4000 1 -stp vlan4000
> 
> protected  interfacename pddomainnumber
> 
> the vio0 address is the uplink and is not a member of the
> protected domain
> all the other ports that you want to isolate from each other
> should be members of the same protected domain *1* in this
> example
> Hope this helps
> 
> @Mike Larkin
> 
> yes this could be implemented with Vlans and many people
> do when they dont have the port isolation functionality
> (necessity being the mother of invention ) ... but protected
> domains allow  one to use the same vlan and minimise
> the amount of vlans / simplify configuration of the (network /hardware
> switches)

Howdy Tom and Jiri.

As Tom highlighted up above, the main reason I haven't added protected
domains to vmd is because it's only available on bridge and not switch.  At the
moment, the network plumbing is agnostic to bridge/switch and uses
ioctls that both have (adding/removing members and placement into
rdomains).  I'm not saying it isn't possible adding protected domains to vmd,
it'll just be more work.

+--+
Carlos

> 
> Hope this Helps
> Tom Smyth
> 
> On 22 August 2018 at 07:08, Mike Larkin <mlar...@azathoth.net> wrote:
> 
> > On Fri, Aug 17, 2018 at 06:39:22PM +0200, jirib wrote:
> > > Hello,
> > >
> > > I was checking bridge's protected domains and I'm curious
> > > how to add VMM VM's tap into a VMM switch/bridge protected domain.
> > >
> > > It seems it's not implemented yet.
> > >
> > > I wanted to achieve this:
> > >
> > > - multiple VMM VMs in same switch/bridge
> > > - VMs cannot talk to each other inside the bridge
> > >   hence protected domain
> > > - VMs can access uplink via bridge's vether
> > >
> > > Jiri
> > >
> >
> > I am not a networking person but is this something VLANs can solve?

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