Re: [Xen-users] Re: Network isolation - PCI passthrough question

[dave <dave@xxxxxxxxxxxxxxx>]

> As far as I have seen, there are no way to attach domU nic directly to
> my firewall domU. So, dom0 will always have access to network traffic
> from domU, right ?
only if you add dom0 interface to bridge.  for example:

domu-2  :  tap2  --|
domu-1  :  tap1  --|
domu-fw :  tapfw --|
                   |
              tap-br0
                   |
dom0    :  tap0  --|


so only do

brctl addif tap-br0 tap0

when dom0 needs to join the LAN, then

brctl delif tap-br0 tap0

when you want dom0 to leave the LAN.

Again, I'm not sure if this is what you're trying to do, but it will 
isolate dom0 from your virtual LAN.


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