tap(4) and host-only networking between host and guest

Neel Natu neelnatu at gmail.com
Wed Nov 4 23:07:26 UTC 2015


Hi Victor,

On Wed, Nov 4, 2015 at 10:45 AM, Victor Sudakov <vas at mpeks.tomsk.su> wrote:
> Victor Sudakov wrote:
>> Julian Elischer wrote:
>> > >
>> > > I am experimenting with bhyve which uses tap(4) for network access.
>> > >
>> > > I don't want to bridge tap0 with any of the hosts's real NICs. How can
>> > > I create a private network just between the host and the guest?
>> > you are thinking too hard!
>> >
>> > tap IS the interface..
>> >
>> > ifconfig tap0 $address...
>> > and in the VM, ifconfig vtnet0 ${some_other_address}
>>
>> Thank you, Julian! It works. I felt I was missing something obvious.
>
> For some reason, after a guest is shutdown or rebooted, the IP address
> on the host's tap0 interface is deleted.
>

Try using 'vmnet0' instead of 'tap0'. It will retain the IP address
even after a guest reboot/shutdown.

best
Neel

> It's kind of inconvenient.
>
> --
> Victor Sudakov,  VAS4-RIPE, VAS47-RIPN
> sip:sudakov at sibptus.tomsk.ru
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