lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [day] [month] [year] [list]
Message-Id: <20190110074053.GA32036@rapoport-lnx>
Date:   Thu, 10 Jan 2019 09:40:54 +0200
From:   Mike Rapoport <rppt@...ux.ibm.com>
To:     netdev@...r.kernel.org
Subject: Q: is it possible to use macvtap with lowerdev hotplug?

Hi,

I have a setup in which VMs are connected with macvtap to the network. The
macvtap interfaces are attached to a physical NIC.

There is a question if it is possible to hot-unplug - hot-plug the physical
NIC and retain the VMs connectivity to the network (of course with some
hiccup for the unplug-plug time).

As far as I could tell from the macvtap/macvlan code, once lowerdev is gone
there is nothing that can be done to reattach macvlan/macvtap to another
lowerdev.

My question is there something fundamental that prevents it?

-- 
Sincerely yours,
Mike.

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ