Re: [CentOS-virt] Libvirt NAT-based network 2x-4x faster than Libvirt routed network?
On 05/25/2010 04:34 PM, Kenni Lund wrote: > - 1 public IP for the host (xxx.yyy.zzz.215) on a /32 subnet with > xxx.yyy.zzz.193 as gateway Is it typo? There can be no subnet with /32 bit mask, it's single host only. -- veiko ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
Re: [CentOS-virt] Libvirt NAT-based network 2x-4x faster than Libvirt routed network?
В Thu, 27 May 2010 10:40:30 +0300 Veiko Kukk пишет: > On 05/25/2010 04:34 PM, Kenni Lund wrote: > > - 1 public IP for the host (xxx.yyy.zzz.215) on a /32 subnet with > > xxx.yyy.zzz.193 as gateway > > Is it typo? > There can be no subnet with /32 bit mask, it's single host only. > Actually, it is possible: ip addr add xxx.yyy.zzz.215/32 dev eth0 ip route add xxx.yyy.zzz.193 dev eth0 ip route add default via xxx.yyy.zzz.193 ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
Re: [CentOS-virt] Libvirt NAT-based network 2x-4x faster than Libvirt routed network?
On 05/27/2010 12:21 PM, Aleksei Miheev wrote: >> Is it typo? >> There can be no subnet with /32 bit mask, it's single host only. >> > > Actually, it is possible: > > ip addr add xxx.yyy.zzz.215/32 dev eth0 > ip route add xxx.yyy.zzz.193 dev eth0 > ip route add default via xxx.yyy.zzz.193 Of course you can do that, but it wouldn't a *subnet*. Net like network, system consisting of several units. I rest my case. -- Veiko ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
Re: [CentOS-virt] How to connect a guest to a fixed routable address?
On Wed, May 26, 2010 18:34, compdoc wrote: > are other ways to do things. But I found bridges to be the best\ > way to go for attaching to the lan or wan, and virtual nets are > great for guest-to-guest, or guest-to-server communication. > > A bridge lets several guests share one nic, but they can also be > used to assign one guest to one nic. There is no magic involved, > however - if you have too many guests sharing one network card, > you're going to develop a bottleneck. Thank you. I have configured a bridge on that server and assigned eth0 to it. This a desktop development machine begin used to show a proof of concept so adding another NIC is a frill that will not be contemplated. I am presently installing another guest that is using the eth0 directly. I will see how that goes with respect to network connectivity. Can anyone explain to me the significance of tunctl and its relation to virtual machines. It seems quite important from what I have read but tactual documentation on what it is and why or when or how you should use it is a bit sparse. -- *** E-Mail is NOT a SECURE channel *** James B. Byrnemailto:byrn...@harte-lyne.ca Harte & Lyne Limited http://www.harte-lyne.ca 9 Brockley Drive vox: +1 905 561 1241 Hamilton, Ontario fax: +1 905 561 0757 Canada L8E 3C3 ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
Re: [CentOS-virt] Libvirt NAT-based network 2x-4x faster than Libvirt routed network?
2010/5/27 Veiko Kukk : > On 05/27/2010 12:21 PM, Aleksei Miheev wrote: >>> Is it typo? >>> There can be no subnet with /32 bit mask, it's single host only. >>> >> >> Actually, it is possible: >> >> ip addr add xxx.yyy.zzz.215/32 dev eth0 >> ip route add xxx.yyy.zzz.193 dev eth0 >> ip route add default via xxx.yyy.zzz.193 > > Of course you can do that, but it wouldn't a *subnet*. Net like network, > system consisting of several units. > I rest my case. Well, it is a subnet, it has just only got one host in it. I wrote it because the question is about routing, so it's quite relevant that the IP-addresses are not on the same subnet. No one with any clues on what to test / look into? :-/ Best Regards Kenni ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
Re: [CentOS-virt] Libvirt NAT-based network 2x-4x faster than Libvirt routed network?
Maybe the part about netfilter? http://wiki.libvirt.org/page/Networking ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
[CentOS-virt] 4 CPU with WinXP on Centos 5.5 KVM?
Has anyone had any success getting WinXP 32bit to use 4 CPU's under Centos 5.5 KVM? I have tried everything and the best I can get is 2 CPU's. I tried everything listed here http://www.linux-kvm.com/content/running-windows-smp-guests I am using the VIRTIO drivers. Is this known limitation of KVM-83-164 (Centos5 release) with WinXP 32bit? I think there are reports of it working with 32bit Windows 2003 (or was it Windows 2008?). I know KVM is granting the 4 CPU's since Linux VM can use 4 CPU's on the same computer. Thanks, Marcelino Marcelino Mata Engineering Technology Specialist Multimatic Technical Centre 85 Valleywood Drive Markham, ON Canada L3R 5E5 Tel. +1 905 470 0025 CONFIDENTIALITY NOTE: This email (and attachments, if any) contain(s) information that is PRIVATE and CONFIDENTIAL, and may be LEGALLY PRIVILEGED or otherwise exempt from disclosure under applicable law. All copyright is reserved, and no right or license is granted to duplicate or publish the content of this email or to forward it to third parties, without, in each case, specific permission. If you have received this email in error, you must not copy, distribute, retain or use this email or the information contained in it for any purpose (other than to notify the sender). If you believe that you are not the intended recipient of this email, please contact the sender immediately and delete this email from your computer system (including any archive or other storage facilities). Thank you. ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
Re: [CentOS-virt] 4 CPU with WinXP on Centos 5.5 KVM?
> > Has anyone had any success getting WinXP 32bit to use 4 CPU's > under Centos 5.5 KVM? > > I have tried everything and the best I can get is 2 CPU's. I > tried everything listed here > http://www.linux-kvm.com/content/running-windows-smp-guests > I am using > the VIRTIO drivers. > > Is this known limitation of KVM-83-164 (Centos5 release) with > WinXP 32bit? I think there are reports of it working with > 32bit Windows 2003 (or was it Windows 2008?). > > I know KVM is granting the 4 CPU's since Linux VM can use 4 > CPU's on the same computer. > > Thanks, > > Marcelino Marcelino, TTBOMK winxp is only going to support 2 physical cpus unless you have a special winxp license that we have not experienced we have never seen more than a 1 or 2 physical cpu version of winxp eh ? - rh ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
Re: [CentOS-virt] 4 CPU with WinXP on Centos 5.5 KVM?
I think he means cores. And XP will see and use 4 cores. ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
