Hello! What is exactly "tap0" in the host ifconfig? Thank you! _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
On 4/18/07, ben henrion <benjhenrion.xen@gmail.com> wrote:> Hello! > > What is exactly "tap0" in the host ifconfig?Can you please specify what you mean? I don''t know of a tap0 device that is used/created by xen by default. Henning _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
---------- Forwarded message ---------- From: Henning Sprang <henning_sprang@gmx.de> Date: 19 avr. 2007 23:17 Subject: Re: [Xen-users] Tap0? To: ben henrion <benjhenrion.xen@gmail.com> please keep list threads on-list as long there''s not important reason not to do so - I will reply when I see the post on the list! ben henrion wrote:> when i created my guest, i type ifconfig in my host console and i find : > eth0, eth1,lo,vif,xenbr0 and tap0 and i don''t know what tap0 is. > > There is no address ip, i think about a virtual birdge or switch for > Xen !? > > 2007/4/18, Henning Sprang <henning_sprang@gmx.de > <mailto:henning_sprang@gmx.de>>: > > On 4/18/07, ben henrion <benjhenrion.xen@gmail.com > <mailto:benjhenrion.xen@gmail.com>> wrote: > > Hello! > > > > What is exactly "tap0" in the host ifconfig? > > Can you please specify what you mean? > > I don''t know of a tap0 device that is used/created by xen by default. > > Henning > >_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
On 4/20/07, ben henrion <benjhenrion.xen@gmail.com> wrote:>> > > when i created my guest, i type ifconfig in my host console and i find : > > eth0, eth1,lo,vif,xenbr0 and tap0 and i don''t know what tap0 is. > >hmm, sorry, I''ve been a bit away from Xen for a while and I din''t think hard enough before replying. I just checked again and realized that, yes, when starting a hvm domain, there seems to be a tap0 device being created. I cannot tell you exactly what it is good for, but I remeber from times when I used qemu more often, that these devices have something to do with the way qemu emulates network devices. And this part of qemu is also used in xen to create emulated net devices for xen hvm domains. Henning _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
For me ... tap 0 is created by tun... Every virtual network created by xen have his equivalent in tap0 that ''s why i''ved many tap.... ... 2007/4/22, Henning Sprang <henning_sprang@gmx.de>:> > On 4/20/07, ben henrion <benjhenrion.xen@gmail.com> wrote: > >> > > > when i created my guest, i type ifconfig in my host console and i find > : > > > eth0, eth1,lo,vif,xenbr0 and tap0 and i don''t know what tap0 is. > > > > > hmm, sorry, I''ve been a bit away from Xen for a while and I din''t > think hard enough before replying. > > I just checked again and realized that, yes, when starting a hvm > domain, there seems to be a tap0 device being created. > > I cannot tell you exactly what it is good for, but I remeber from > times when I used qemu more often, that these devices have something > to do with the way qemu emulates network devices. And this part of > qemu is also used in xen to create emulated net devices for xen hvm > domains. > > Henning >-- Benjamin HENRION Elève de 4eme année de l'' EXIA (Nancy) Ecole supérieure d''informatique Spé Réseaux _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users