<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:st1="urn:schemas-microsoft-com:office:smarttags" xmlns="http://www.w3.org/TR/REC-html40"> <head> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii"> <meta name=Generator content="Microsoft Word 11 (filtered medium)"> <o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="PersonName"/>  <style>  </style> </head> <body lang=EN-US link=blue vlink=purple> <div class=Section1> Hi all,<o:p></o:p> When I see dmesg on host machine it gives error- “macvtap0: no IPv6 routers present”<o:p></o:p> <o:p> </o:p> Is this error causing saome problem..<o:p></o:p> Even if guest starts it gives error “Bringing up interface eth0: Device eth0 does not seem to be present, delaying initialization.<o:p></o:p> [FAILED]”<o:p></o:p> <o:p> </o:p> Is this dmesg = - “macvtap0: no IPv6 routers present” the cause???<o:p></o:p> <o:p> </o:p> <div> <div class=MsoNormal align=center style='text-align:center'> <hr size=2 width="100%" align=center tabindex=-1> </div> From: libvir-list-bounces@redhat.com [mailto:libvir-list-bounces@redhat.com] On Behalf Of Amit Tewari Sent: Monday, December 12, 2011 3:50 PM To: <st1:PersonName w:st="on">libvir-list@redhat.com</st1:PersonName> Subject: Re: [libvirt] macvtap support in libvirt 0.9.8<o:p></o:p> </div> <o:p> </o:p> Hi all,<o:p></o:p> <o:p> </o:p> Please ignore my previous mail..<o:p></o:p> <o:p> </o:p> This is my test scenario<o:p></o:p> <o:p> </o:p> My test environment<o:p></o:p> Host os=rhel6.1<o:p></o:p> Guest os = rhel6.1<o:p></o:p> Libvirt=0.9.8<o:p></o:p> Kvm hypervisor<o:p></o:p> <o:p> </o:p> I am creating a macvtap interface on host machine at eth0 interface<o:p></o:p> #ip link show macvtap0<o:p></o:p> 51: macvtap0@eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UNKNOWN qlen 500<o:p></o:p> link/ether 1e:aa:f7:43:7e:3d brd ff:ff:ff:ff:ff:ff<o:p></o:p> <o:p> </o:p> I have made this entry in guest xml file<o:p></o:p> <o:p> </o:p> <interface type='direct'><o:p></o:p> <mac address=1e:aa:f7:43:7e:3d’/><o:p></o:p> <source dev='eth0' mode='bridge'/><o:p></o:p> <model type='virtio'/><o:p></o:p> <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/><o:p></o:p> </interface><o:p></o:p> <o:p> </o:p> Now when I start the guest <o:p></o:p> #virsh start guest<o:p></o:p> It gives following message<o:p></o:p> error: Failed to start domain guest<o:p></o:p> error: Cannot set interface flags on 'macvtap1': Device or resource busy<o:p></o:p> <o:p> </o:p> <o:p> </o:p> <o:p> </o:p> Please let me know what else we need to do to make macvtap work on kvm.<o:p></o:p> <o:p> </o:p> <o:p> </o:p> <div> <div class=MsoNormal align=center style='text-align:center'> <hr size=2 width="100%" align=center tabindex=-1> </div> From: libvir-list-bounces@redhat.com [mailto:libvir-list-bounces@redhat.com] On Behalf Of Amit Tewari Sent: Monday, December 12, 2011 3:22 PM To: <st1:PersonName w:st="on">libvir-list@redhat.com</st1:PersonName> Subject: [libvirt] macvtap support in libvirt 0.9.8<o:p></o:p> </div> <o:p> </o:p> Hi all,<o:p></o:p> <o:p> </o:p> My test environment<o:p></o:p> Host os=rhel6.1<o:p></o:p> Guest os = rhel6.1<o:p></o:p> Libvirt=0.9.8<o:p></o:p> Kvm hypervisor<o:p></o:p> <o:p> </o:p> I am creating a macvtap interface on host machine at eth0 interface<o:p></o:p> #ip link show macvtap0<o:p></o:p> 51: macvtap0@eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UNKNOWN qlen 500<o:p></o:p> link/ether 1e:aa:f7:43:7e:3d brd ff:ff:ff:ff:ff:ff<o:p></o:p> <o:p> </o:p> I have made this entry in guest xml file<o:p></o:p> <div style='border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 1.0pt 0in'> <o:p> </o:p> </div> <interface type='direct'><o:p></o:p> <mac address=1e:aa:f7:43:7e:3d’/><o:p></o:p> <source dev='eth0' mode='bridge'/><o:p></o:p> <model type='virtio'/><o:p></o:p> <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/><o:p></o:p> <div style='border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 1.0pt 0in'> </interface><o:p></o:p> </div> <o:p> </o:p> Now when I start the guest <o:p></o:p> #virsh start guest<o:p></o:p> It gives following message<o:p></o:p> “Bringing up interface eth0: Device eth0 does not seem to be present, delaying initialization.<o:p></o:p> [FAILED]”<o:p></o:p> <o:p> </o:p> Guest eth interface does not create. what is the problem.<o:p></o:p> <o:p> </o:p> Please let me know what else we need to do to make macvtap work on kvm.<o:p></o:p> </div> </body> </html> <pre> DISCLAIMER: ----------------------------------------------------------------------------------------------------------------------- The contents of this e-mail and any attachment(s) are confidential and intended for the named recipient(s) only. 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