On Friday 22 November 2013 04:19 PM, Sherin A wrote:
On Friday 22 November 2013 01:33 PM, Sherin A wrote:
On Friday 22 November 2013 01:24 PM, Gao feng wrote:
On 11/22/2013 03:47 PM, Sherin A wrote:
Hello,
I am not able to see vrbr0 in my box. Can some one help me
with this ? . I am trying KVM+libvirt and planing to use Routed
mode. I hope this virbr0 must be up for using this . I can give an
strace too.
OS : Debian , kernel 3.12.0
libvrit version : 0.9.8
____________________________________________________________________
root@:~# ifconfig
br0 Link encap:Ethernet HWaddr 4c:72:b9:32:32:86
inet addr:10.0.0.12 Bcast:10.0.0.255 Mask:255.255.255.0
inet6 addr: fe80::4e72:b9ff:fe32:3286/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:4523 errors:0 dropped:0 overruns:0 frame:0
TX packets:4068 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:2286336 (2.2 MB) TX bytes:411238 (411.2 KB)
eth0 Link encap:Ethernet HWaddr 4c:72:b9:32:32:86
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:17044 errors:0 dropped:0 overruns:0 frame:0
TX packets:14253 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:12594945 (12.5 MB) TX bytes:1902456 (1.9 MB)
Interrupt:20 Memory:f7c00000-f7c20000
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:4 errors:0 dropped:0 overruns:0 frame:0
TX packets:4 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:240 (240.0 B) TX bytes:240 (240.0 B)
-------------------------------------------------------------------
root@:~# virsh net-start default
error: Failed to start network default
error: failed to add iptables rule to enable masquerading
root@:~# virsh net-list --all
Name State Autostart
-----------------------------------------
default inactive yes
root@:~# virsh net-start default
error: Failed to start network default
error: failed to add iptables rule to enable masquerading
seems like your kernel doesn't have ipt_MASQUERADE installed.
try modprobe ipt_MASQUERADE
Hi Gao,
Yes , it looks like I am missing more module. I will recompile the
kernel and test more, the following is the reason behind this issue.
root@:~# tail /var/log/libvirt/libvirtd.log
2013-11-22 07:43:06.388+0000: 4328: error : virCommandWait:2192 :
internal error Child process (/sbin/iptables --table nat --insert
POSTROUTING --source 192.168.122.0/24 ! --destination
192.168.122.0/24 --jump MASQUERADE) status unexpected: exit status 3
2013-11-22 07:43:06.388+0000: 4328: error :
networkAddMasqueradingIptablesRules:966 : failed to add iptables rule
to enable masquerading
root@:~# /sbin/iptables --table nat --insert POSTROUTING --source
192.168.122.0/24 ! --destination 192.168.122.0/24 --jump MASQUERADE
iptables v1.4.12: can't initialize iptables table `nat': Table does
not exist (do you need to insmod?)
Perhaps iptables or your kernel needs to be upgraded.
root@# find /lib/modules/`uname -r` -iname "ipt*.ko"
/lib/modules/3.12.0-zilonus/kernel/net/ipv4/netfilter/ipt_ULOG.ko
/lib/modules/3.12.0-zilonus/kernel/net/ipv4/netfilter/ipt_REJECT.ko
/lib/modules/3.12.0-zilonus/kernel/net/ipv4/netfilter/iptable_raw.ko
/lib/modules/3.12.0-zilonus/kernel/net/ipv4/netfilter/iptable_filter.ko
/lib/modules/3.12.0-zilonus/kernel/net/ipv4/netfilter/ipt_CLUSTERIP.ko
/lib/modules/3.12.0-zilonus/kernel/net/ipv4/netfilter/ipt_ah.ko
/lib/modules/3.12.0-zilonus/kernel/net/ipv4/netfilter/iptable_mangle.ko
/lib/modules/3.12.0-zilonus/kernel/net/ipv4/netfilter/iptable_security.ko
/lib/modules/3.12.0-zilonus/kernel/net/ipv4/netfilter/ipt_ECN.ko
root@~#
root@myhome:~# lsmod | grep ipt
ipt_REJECT 12541 0
iptable_mangle 12695 0
iptable_filter 12810 0
ip_tables 26952 2 iptable_mangle,iptable_filter
x_tables 29804 11
xt_physdev,ip6table_filter,ip6_tables,ebtables,xt_state,ipt_REJECT,xt_CHECKSUM,iptable_mangle,xt_tcpudp,iptable_filter,ip_tables
root@:~# modinfo iptable_nat
ERROR: modinfo: could not find module iptable_nat
root@:~#
I will compile the kernel and get back soon.
I fixed the iptable issue . But it is still not showing vrbr0 . Now
it shows the following error ,
root@myhome:~# virsh net-list --all
Name State Autostart
-----------------------------------------
default inactive yes
root@myhome:~# virsh net-start default
error: Failed to start network default
error: internal error Child process (/usr/sbin/dnsmasq -u
libvirt-dnsmasq --strict-order --bind-interfaces
--pid-file=/var/run/libvirt/network/default.pid --conf-file=
--except-interface lo --listen-address 192.168.122.1 --dhcp-range
192.168.122.2,192.168.122.254
--dhcp-leasefile=/var/lib/libvirt/dnsmasq/default.leases
--dhcp-lease-max=253 --dhcp-no-override) status unexpected: exit status 2
2013-11-22 10:42:51.113+0000: 1288: error : virCommandWait:2192 :
internal error Child process (/usr/sbin/dnsmasq -u libvirt-dnsmasq
--strict-order --bind-interfaces
--pid-file=/var/run/libvirt/network/default.pid --conf-file=
--except-interface lo --listen-address 192.168.122.1 --dhcp-range
192.168.122.2,192.168.122.254
--dhcp-leasefile=/var/lib/libvirt/dnsmasq/default.leases
--dhcp-lease-max=253 --dhcp-no-override) status unexpected: exit status 2
I fixed this too , there was a multiple instance of dnsmasq making this
mess, I killed it and removed the autostart too. that fixed the issue,
Now vrbr0 is up
oot@myhome:~# ps aux | grep mask
root 3135 0.0 0.0 13584 924 pts/0 S+ 16:19 0:00 grep
--color=auto mask
root@myhome:~# ps aux | grep dns
dnsmasq 1196 0.0 0.0 33020 1016 ? S 16:10 0:00
/usr/sbin/dnsmasq -x /var/run/dnsmasq/dnsmasq.pid -u dnsmasq -r
/var/run/dnsmasq/resolv.conf -7
/etc/dnsmasq.d,.dpkg-dist,.dpkg-old,.dpkg-new
134 2749 0.0 0.0 33024 1032 ? S 16:15 0:00
/usr/sbin/dnsmasq -u libvirt-dnsmasq --strict-order --bind-interfaces
--pid-file=/var/run/libvirt/network/default.pid --conf-file=
--except-interface lo --listen-address 192.168.122.1 --dhcp-range
192.168.122.2,192.168.122.254
--dhcp-leasefile=/var/lib/libvirt/dnsmasq/default.leases
--dhcp-lease-max=253 --dhcp-no-override
134 2807 0.0 0.0 33024 1028 ? S 16:16 0:00
/usr/sbin/dnsmasq -u libvirt-dnsmasq --strict-order --bind-interfaces
--pid-file=/var/run/libvirt/network/default.pid --conf-file=
--except-interface lo --listen-address 192.168.122.1 --dhcp-range
192.168.122.2,192.168.122.254
--dhcp-leasefile=/var/lib/libvirt/dnsmasq/default.leases
--dhcp-lease-max=253 --dhcp-no-override
root 3137 0.0 0.0 13588 928 pts/0 S+ 16:20 0:00 grep
--color=auto dns
root@myhome:~# pkill -9 dnsmasq
root@myhome:~# ps aux | grep dns
root 3140 0.0 0.0 13584 928 pts/0 S+ 16:20 0:00 grep
--color=auto dns
root@myhome:~# virsh net-start default
Network default started
root@myhome:~# ifconfig
br0 Link encap:Ethernet HWaddr 4c:72:b9:32:32:86
inet addr:10.0.0.12 Bcast:10.0.0.255 Mask:255.255.255.0
inet6 addr: fe80::4e72:b9ff:fe32:3286/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1428 errors:0 dropped:0 overruns:0 frame:0
TX packets:1517 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:1400480 (1.4 MB) TX bytes:194878 (194.8 KB)
eth0 Link encap:Ethernet HWaddr 4c:72:b9:32:32:86
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1847 errors:0 dropped:0 overruns:0 frame:0
TX packets:1525 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1496510 (1.4 MB) TX bytes:203001 (203.0 KB)
Interrupt:20 Memory:f7c00000-f7c20000
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:4 errors:0 dropped:0 overruns:0 frame:0
TX packets:4 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:240 (240.0 B) TX bytes:240 (240.0 B)
virbr0 Link encap:Ethernet HWaddr 16:ea:84:8f:53:c8
inet addr:192.168.122.1 Bcast:192.168.122.255 Mask:255.255.255.0
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
root@myhome:~# update-rc.d -f dnsmasq remove
Removing any system startup links for /etc/init.d/dnsmasq ...
/etc/rc0.d/K85dnsmasq
/etc/rc1.d/K85dnsmasq
/etc/rc2.d/S15dnsmasq
/etc/rc3.d/S15dnsmasq
/etc/rc4.d/S15dnsmasq
/etc/rc5.d/S15dnsmasq
/etc/rc6.d/K85dnsmasq
root@myhome:~#
Thank you for your help.
--
--------------------------------------
Sherin A
Syslint Technologies
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