[CentOS-virt] Issues with routing IPv6 to KVM Guests
Hi People, I have some issues with routing ipv6 to my kvm guests. I use a bridge interface with bridge-utils like recommended in the most howtos. Bridge conf: http://fpaste.org/hh9U/ ip -6 route show output: http://fpaste.org/c5Rd/ sysctl.conf: http://fpaste.org/oMjD/ Thanks for your help in advance. If you need more informations just let me know. David Hackl ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
Re: [CentOS-virt] Issues with routing IPv6 to KVM Guests
IPv6 is enabled. As I said, it works good on the node itself. I can ping it and also ping out of it. The link just shows an apache configuration with ipv6 and some basic ipv6 configuration I already did. And fpaste is an fedora related page and the binary is also available in centos repo to easily post files or output from terminal. Saves a lot of time... Mfg from austria in this case to where? ;) Germany? ^^ David On 2012-09-15 00:11, Always Learning wrote: On Sat, 2012-09-15 at 00:02 +0200, David Hackl wrote: Well, the problem is that there is no IPv6 connection at all. I set up the IPv6 adresses in the guests. They also appear with ip addr. I haven't done much Virtual Hosts yet but: (1) how have you enabled IP6 ? Is this useful (2) http://www.timgalyean.com/2011/09/virtual-hosts-using-ipv6/ Mfg, Paul. And what do you mean with south american website? Are you talking about fpaste? Yes, registrant is in Guatemala. ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
Re: [CentOS-virt] Issues with routing IPv6 to KVM Guests
Hi Joe, strange thing but after setting multicast_router once to 2, ipv6 worked on all vnet devices. I also restarted the node and the vms and it is still working. Seems like this fixes the problem Thanks for you help! David Am 20.09.2012 01:39, schrieb Joe Pruett: On 09/19/2012 04:29 PM, Joe Pruett wrote: On 09/14/2012 03:16 PM, David Hackl wrote: IPv6 is enabled. As I said, it works good on the node itself. I can ping it and also ping out of it. this is a really annoying bug in the linux bridge code. ipv6 neighbor discovery relies on multicast, and the bridge code tries to optimize multicast by not treating it as broadcast. but since v6 neighbor discovery doesn't use v4 igmp, the bridge code never realizes what bridge interfaces should get what multicast packets. the easiest fix is: echo 2 /sys/class/net/vif#.#/brport/multicast_router with the appropriate #.# substituted (or just do them all), which tells the bridge code that there is a multicast router on that port and therefore it should receive all multicast traffic. i ran into this a few months back and had forgotten it again until now. i never found a way to make it happen at boot time, or via some script in xen, but i will now dive into that hunt again... ah, the memory is going. i did come up with a hacked way to make this happen for xen vms, so you'd have to find another way to make it happen for kvm. for xen, there is a script that is called to create the vif interface, and i just hacked in the echo in there. i had to do it as a background job with a 5 second delay to get around some timing issue. and it only works for newly created vms, once a vm has been created, it remembers the original script name, so suspending and resuming gets you back to square one, even rebooting from within the guest. here is the code that was added to the vif-bridge script, just to see how easy it was: (sleep 5 ; echo 2 /sys/class/net/$vif/brport/multicast_router) ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
Re: [CentOS-virt] create a guest
Probably the easiest way would be to use a centos vm to connect via virt-manager or you can look into the man's of virt-install? you could also forware x via ssh to your pc and start it on the server. Am Mittwoch, den 16.01.2013, 13:00 -0500 schrieb Digimer: Then you can use virt-install, but you will need to setup a VNC connection to the host in order to see the new VM and finish the install. If you're new to this, I'd strongly recommend installing the CentOS desktop and using virt-manager until you get used to it though. On 01/16/2013 12:49 PM, mattias wrote: i not use a desktop os windows on my desktop centos minimal on the server - Original Message - From: Digimer li...@alteeve.ca To: Discussion about the virtualization on CentOS centos-virt@centos.org Sent: Wednesday, January 16, 2013 6:48 PM Subject: Re: [CentOS-virt] create a guest On 01/16/2013 12:45 PM, mattias wrote: can i create a guest with libvirt and use an existing disc with freebsd? Yes. The 'virt-manager' application will let you use a disc in a drive as installation media. -- Digimer Papers and Projects: https://alteeve.ca/w/ What if the cure for cancer is trapped in the mind of a person without access to education? ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt -- I'm using PGP to sign my messages and attachments. That's why there is a file named signature.asc is attached to all e-mails. If you don't use PGP, you can ignore this file. Ich verwende PGP, um meine E-Mails und Anhänge zu signieren. Aus diesem Grund ist dieser E-Mail eine Datei mit dem Namen signature.asc angehängt. Falls Du kein PGP nutzt, solltest du diese Datei einfach ignorieren. signature.asc Description: This is a digitally signed message part ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
Re: [CentOS-virt] Automatic startup xen domains
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 should be somewhere in /etc/libvirt. qemu is /etc/libvirt/qemu... greets Am 15.09.2013 19:07, schrieb carlopmart: On 15/09/13 09:37, Günther J. Niederwimmer wrote: Am Samstag, 14. September 2013, 20:41:00 schrieb carlopmart: Hi all, I have installed a CentOS 6.4 x86_64 host with official centos-xen packages. I am using virt-manager to create, remove, etc .. vmachines. All works really really well except automatic domains startup. Where libvirtd stores domains configurations?? Under /etc/libvirtd/qemu not, like it does when I use kvm instead of xen. Then, how can I automatic startup certain xen domains?? make a link to autostart /etc/xen/vm - /etc/xen/auto Uhmm .. Nop, it doesn't works becasue libvirt doesn't stores vm configs in /etc/xen ... The problem is: where libvirtd stores vm configurations when xen is the default hypervisor?? Thanks. ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.14 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEcBAEBAgAGBQJSNerlAAoJECyv46okx1igqdMH/3IU9MU0nTSYNWSrwySpEBZK 9uoWWA+UY6+DC6hKCuPX+SD96G3wdjQmv8bFpaPEhUnqXWGFgJji3pWvNVE9Ljke ljrhtgj0mzwBKwaroMI1vJYDz6ClkPEkppGkoKsqhWiV5W+R2n1Q+b7VgR/qoRkg MKpb39Wk3mPVNQTq5OusoPXbmAKKSLmpeK5DdJFB2HEaDrLOsn1th01ie+0Tc6LC ODHlNqUEirgs6VVUuD9KxUgik1RNqFnQqUXN9QucSMul83N1Uxp7RatkqM/FeCIF xeTlpNQN1VC7+gmXwnFM9aqnZCZOk2c2xHpIWPQBJn+QTtScSPpDEws4YhtKX5s= =pqaa -END PGP SIGNATURE- ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
Re: [CentOS-virt] Automatic startup xen domains
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Am 15.09.2013 19:17, schrieb carlopmart: On 15/09/13 17:14, David Hackl wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 should be somewhere in /etc/libvirt. qemu is /etc/libvirt/qemu... Nop, it doesn't exists vm config in these places ... There was the first place where I can try to find it ... ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt well if you use virt-manager gui, why don't you just pick the autostart option in the machine configuration boot options? -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.14 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEcBAEBAgAGBQJSNeyQAAoJECyv46okx1igbIcIAIfqin7fnHNuIRaYT1ziYLgT sY9IqeY5z3dVHfgHwmqJTx+3uWUOiNrYw4cm5PlQLd71JTmn5ok5Gh95Dam7YpHQ 4oK953HuUY7Jm4ZEDnY3pAksLV7Dh2tvYyEZaJzt6XPB8UvRqEwjIDQl7zT6KYkD Zc6cy9wt2omUe1WI8gTqNtsHQoyXV0GDh0SAyhNpMfrLbiMz93HtjDqFVmkqK6np 6jEZEjjDJ7TdH9G4x/mypJjEECfaDkUwH6GjbwuHIMotVwhy0aMbWdlKGpfQvSCH mgk1KxhhV6iecXtncwSGs+21JxmngvAy8ANgqIAAc/UjX/X0tWlG4jcDjSpD8u0= =qQM5 -END PGP SIGNATURE- ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
Re: [CentOS-virt] Automatic startup xen domains
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 maybe file a bugreport for libvirt? https://bugzilla.redhat.com/enter_bug.cgi?product=Virtualization%20Toolscomponent=libvirt Am 18.09.2013 19:18, schrieb C. L. Martinez: On Sun, Sep 15, 2013 at 5:07 PM, carlopmart carlopm...@gmail.com wrote: On 15/09/13 09:37, Günther J. Niederwimmer wrote: Am Samstag, 14. September 2013, 20:41:00 schrieb carlopmart: Hi all, I have installed a CentOS 6.4 x86_64 host with official centos-xen packages. I am using virt-manager to create, remove, etc .. vmachines. All works really really well except automatic domains startup. Where libvirtd stores domains configurations?? Under /etc/libvirtd/qemu not, like it does when I use kvm instead of xen. Then, how can I automatic startup certain xen domains?? make a link to autostart /etc/xen/vm - /etc/xen/auto Uhmm .. Nop, it doesn't works becasue libvirt doesn't stores vm configs in /etc/xen ... The problem is: where libvirtd stores vm configurations when xen is the default hypervisor?? Thanks. Please any idea about this?? maybe is it a bug in libvirt?? ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.14 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEcBAEBAgAGBQJSOg5CAAoJECyv46okx1igns4H/jY/zIHGwJDlPxMr+nmLQt4A rKNEXjdO8fHkSHwit3D1ycVEmEqP40/zYL1GtIOoyyT6TgGhrfgNDHPNh6Le1nfh fmSJUb5Wd12J/OJ5UEa0V1yhDQpg3bmWIvV/aMzXJuwcE8HRFhab5cOXVNVLnMCB r8XhZQ5EdAHFD98kfkS0Douyr8FS46yrDJQru9vrhtMbFZrvfsRAP6rb4xmf30qz trRKyDLfEF0Axw9SFf2kuPRkqkJDji01W4NSS9eiwATqaRqyFrWswkn/igd2qyYE voEC0mWN8B7o+VlTW952+obUNSbXRJviCkmv5+zjQWozyvE42UNKsZq0sOxrbpY= =Pmzk -END PGP SIGNATURE- ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
Re: [CentOS-virt] Automatic startup xen domains
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 well, it seems like your problem is libvirt based and not xen based. libvirt uses redhat bugzilla for bugtracking. btw: redhat develops a big part of libvirt... Am 18.09.2013 22:50, schrieb C. L. Martinez: On Wed, Sep 18, 2013 at 8:34 PM, David Hackl i...@dh-online.net wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 maybe file a bugreport for libvirt? https://bugzilla.redhat.com/enter_bug.cgi?product=Virtualization%20Toolscomponent=libvirt uhmm I don't think I can do that. Problem is with libvirt+xen (and it is specific for CentOS, not for RHEL because Redhat 6 doesn't supports RHEL 6.x as a dom0 host), and not with libvirt+kvm. Libvirt+kvm works ok without problems ... ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.14 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEcBAEBAgAGBQJSOhNpAAoJECyv46okx1igf+wH/3jTMulZtHAeH/KhnzetlvJ3 p/6OuMSb+9PUbDX1Q7w6bVN1FmI8MC2taBxKajwTJ8GzPpp8Tbr98lz3EUFS9nYY yvCk46uXre31wtpVoUfsBoTdNE1RwU4PRV/tcuSjgBjOJ/bSwK3NrlkoR9miS5WB 8kYVRX3yA1mBONdTdXsYx1HSGq6XoyIULC98XWhZ/lSyG+ClXhLICK8ovI6ZZoSX JqxeTa0LXHn4N4wuxuqtRN3mkbaH1hva6XCa+ZRooczpEsphaxeicjVwKpVNohKb v5joGb6Hw19DkHcm3SLTKRVks7uu9TJrz9tI9SosWu1GRAN8hSF7oqnGkUclLOQ= =a3kR -END PGP SIGNATURE- ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
Re: [CentOS-virt] Automatic startup xen domains
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 the bugtracker is for all libvirt bugs, not specific rhel bugs... that's the official bugtracker for the libvirt project. so of course you can use that bugtracker... Am 18.09.2013 23:09, schrieb C. L. Martinez: Correct, my problem is with libvirt but only when I use xen as a hypervisor, not when I use kvm ... When you setup a new vm using libvirt under a RHEL 6.x host, you don't see Xen hypervisor as an option ... I doubt that Redhat accepts this as a problem with their libvirt package ... but maybe I am wrong ... On Wed, Sep 18, 2013 at 8:56 PM, David Hackl i...@dh-online.net wrote: well, it seems like your problem is libvirt based and not xen based. libvirt uses redhat bugzilla for bugtracking. btw: redhat develops a big part of libvirt... Am 18.09.2013 22:50, schrieb C. L. Martinez: On Wed, Sep 18, 2013 at 8:34 PM, David Hackl i...@dh-online.net wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 maybe file a bugreport for libvirt? https://bugzilla.redhat.com/enter_bug.cgi?product=Virtualization%20Toolscomponent=libvirt uhmm I don't think I can do that. Problem is with libvirt+xen (and it is specific for CentOS, not for RHEL because Redhat 6 doesn't supports RHEL 6.x as a dom0 host), and not with libvirt+kvm. Libvirt+kvm works ok without problems ... ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.14 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEcBAEBAgAGBQJSOhc4AAoJECyv46okx1igTIcIAKeoyYK1DQs2s0U5OIDzGPTS xXJY3EDDRSovQApTqfpg02E38P/kYbT/4GJNFHR6eKP6/PkrL60IRHv5+Phah1/p fa/TahVPPAunGorcp4QQX3EnE7A7T64MPUyHuOEl+B6K2yJdc0uYTktm1i9CBXSV MxIfViC5Jryr5/+Zb/7gErF4a76PTQ+fBSh0XOLpjkjqimRc5s2qNztpKBqdE3sF py3vH9jZWRvEJb55JABeQ+gC+PgORuxJub+W0178SAa4MmmGPNs2m0Lbbz1dKCYE Cwj7/N2UKI4nWmkiiPyIahYZ/1kOzsgwFNxjq79zzP91BU0Ecz2IATup5WknCRk= =Wike -END PGP SIGNATURE- ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
