On 10/5/2014 1:56 AM, Bhasker C V wrote: > On 04/10/14 21:13, The Cop wrote: >> On 10/4/2014 8:46 PM, Bhasker C V wrote: >>> On 04/10/14 15:36, The Cop wrote: >>>> Hello, >>>> >>>> I am trying to assign an IPv6 address to one of my guests. I followed the >>>> following guide, unsuccessfully: >>>> >> https://www.berrange.com/posts/2011/06/16/providing-ipv6-connectivity-to-virtual-guests-with-libvirt-and-kvm/ >>>> . >>>> >>>> I have the following config files: >>>> dumpxml of the guest `deb`: http://sprunge.us/iUef >>>> net-dumpxml of network `default`: http://sprunge.us/WTfH >>>> net-dumpxml of network `ip6`: http://sprunge.us/YEXc >>>> >>>> Host: >>>> ifconfig: http://sprunge.us/cJOg >>>> Routing table: IPv6: http://sprunge.us/GChZ IPv4: http://sprunge.us/dACN >>>> /etc/network/interfaces: http://sprunge.us/fHcf >>>> /var/lib/libvirt/radvd/ip6-radvd.conf: http://sprunge.us/JcfF >>>> ip6tables: http://sprunge.us/JGBG >>>> uname -a: http://sprunge.us/acFF >>>> >>>> Guest: >>>> ifconfig: http://sprunge.us/JIFN >>>> Routing table: IPv6: http://sprunge.us/ZPfT IPv4: http://sprunge.us/gbXA >>>> /etc/network/interfaces: http://sprunge.us/ZaBB >>>> uname -a: http://sprunge.us/CFFL >>>> >>>> Both machines are running Debian Wheezy. virsh version is 0.9.12.3. >> The IP >>>> address I'm trying to assign to the guest is "2607:5300:60:1156::2/64". >>>> Forgive me if I'm making some trivial mistake, but this is more or >> less the >>>> first time I'm productively using IPv6. >>>> >>>> Thanks >>>> >>>> >>>> >>>> _______________________________________________ >>>> libvirt-users mailing list >>>> libvirt-users@xxxxxxxxxx >>>> https://www.redhat.com/mailman/listinfo/libvirt-users >>>> >>> I assume you are using two different IPV6 address for the two machines. >>> I gave a quick scan of your mail but could not find what exactly is >> the issue you are facing ? >>> Are you not able to ping ? Is the IP not getting assigned ? >>> Are you able to ping link-local addresses ? >>> what does this command output look like ? >>> ip -6 nei >> I am using two different IPv6 addresses for the two different machines. >> I am unable to ping outside from the VM or connect otherwise via IPv6 >> from the VM. I am also unable to ping the link-local addresses of the >> eth1 interface on the VM (via `ping6 fe80::5054:aaff:fe00:f057/64`). >> ip -6 nei on the VM gives me: >> `fe80::5054:ff:fe1d:a4bb dev eth1 lladdr 52:54:00:1d:a4:bb router STALE` >> >> > Hi, > > Your setup shows > virbr2 and br0 both on the same network 2607:5300:60:1156::2/64 which > will cause issues with routing. This however must not affect the pinging > of link-local addresses > > ON the virtual machine: > ping -I <eth0> <link-local of server> > must work. > If not > check both side link-local addresses if they are set. > > A quick way to check with "any-body on the segment please reply" is to > on virtual machine > ping6 -I <eth0> ff02::1 > You must see 2 addresses (one is your own link-local and the other is > the address on the server) > > Example in my case is pasted (there are 4 machines): > > $ ping6 -I n1 ff02::1 > PING ff02::1(ff02::1) from fe80::2c3b:53ff:fea0:9d26 n1: 56 data bytes > 64 bytes from fe80::2c3b:53ff:fea0:9d26: icmp_seq=1 ttl=64 time=0.099 ms > 64 bytes from fe80::c4a2:78ff:fe7d:af8d: icmp_seq=1 ttl=64 time=0.590 ms > (DUP!) > 64 bytes from fe80::5054:ff:fe12:3456: icmp_seq=1 ttl=64 time=0.967 ms > (DUP!) > 64 bytes from fe80::5054:ff:fe12:3457: icmp_seq=1 ttl=64 time=2.10 ms (DUP!) > 64 bytes from fe80::2c3b:53ff:fea0:9d26: icmp_seq=2 ttl=64 time=0.097 ms > 64 bytes from fe80::c4a2:78ff:fe7d:af8d: icmp_seq=2 ttl=64 time=0.318 ms > (DUP!) > 64 bytes from fe80::5054:ff:fe12:3456: icmp_seq=2 ttl=64 time=0.701 ms > (DUP!) > 64 bytes from fe80::5054:ff:fe12:3457: icmp_seq=2 ttl=64 time=1.06 ms (DUP!) > ^C > --- ff02::1 ping statistics --- > 2 packets transmitted, 2 received, +6 duplicates, 0% packet loss, time > 1001ms > > > If link-local address cannot be ping-ed then try pinging ::1. > Pinging link-local address via `ping6 -I eth1 fe80::5054:ff:fe1d:a4bb` works now. Could you elaborate on virbr2 and br0 being on the same network please? Because if I'm seeing this correctly, br0 has `2607:5300:60:1156::1/64` and virbr2 has `2607:5300:60:1156::2/64` and those are two completely different addresses, right? _______________________________________________ libvirt-users mailing list libvirt-users@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvirt-users
