[Date Prev][Date Next]   [Thread Prev][Thread Next]   [Thread Index] [Date Index] [Author Index]

[libvirt] NAT networking with libvirt/kvm on Mandriva



I'm trying to get NAT networking working with libvirt/virtual-manager and 
KVM on Mandriva Linux.

I installed dnsmasq (and disabled the init script, as libvirt starts up 
dnsmasq manually), bridge-utils, and added MII_NOT_SUPPORTED=yes to /etc/
sysconfig/ifcfg-virbr0, otherwise Mandriva's network scripts would 
immediately try to get an IP on virbr0 with DHCP, removing the correct IP 
address set by libvirt on its activation.

So currently I have:
# virsh net-list --all
Name                 State      Autostart 
-----------------------------------------
default              active     yes      
# brctl show
bridge name	bridge id		STP enabled	interfaces
pan0		8000.000000000000	no		
virbr0		8000.000000000000	yes		
# ifconfig
eth0      Link encap:Ethernet  HWaddr 00:21:70:AC:B0:8A  
          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:1000 
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)
          Memory:f6ae0000-f6b00000 

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:16436  Metric:1
          RX packets:9664 errors:0 dropped:0 overruns:0 frame:0
          TX packets:9664 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:45094959 (43.0 MiB)  TX bytes:45094959 (43.0 MiB)

virbr0    Link encap:Ethernet  HWaddr EE:F4:3D:09:50:15  
          inet addr:192.168.122.1  Bcast:192.168.122.255  
Mask:255.255.255.0
          inet6 addr: fe80::ecf4:3dff:fe09:5015/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:52 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:0 (0.0 b)  TX bytes:11785 (11.5 KiB)

wlan0     Link encap:Ethernet  HWaddr 00:16:EA:4C:A9:38  
          inet addr:192.168.100.24  Bcast:192.168.100.255  
Mask:255.255.255.0
          inet6 addr: fe80::216:eaff:fe4c:a938/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:1496 errors:0 dropped:0 overruns:0 frame:0
          TX packets:899 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:464043 (453.1 KiB)  TX bytes:157558 (153.8 KiB)

wmaster0  Link encap:UNSPEC  HWaddr 00-16-EA-4C-A9-38-20-
B4-00-00-00-00-00-00-00-00  
          UP BROADCAST RUNNING 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:1000 
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)
# iptables -L
Chain INPUT (policy ACCEPT)
target     prot opt source               destination         
ACCEPT     udp  --  anywhere             anywhere            udp 
dpt:domain 
ACCEPT     tcp  --  anywhere             anywhere            tcp 
dpt:domain 
ACCEPT     udp  --  anywhere             anywhere            udp 
dpt:bootps 
ACCEPT     tcp  --  anywhere             anywhere            tcp 
dpt:bootps 

Chain FORWARD (policy ACCEPT)
target     prot opt source               destination         
ACCEPT     all  --  anywhere             192.168.122.0/24    state 
RELATED,ESTABLISHED 
ACCEPT     all  --  192.168.122.0/24     anywhere            
ACCEPT     all  --  anywhere             anywhere            
REJECT     all  --  anywhere             anywhere            reject-with 
icmp-port-unreachable 
REJECT     all  --  anywhere             anywhere            reject-with 
icmp-port-unreachable 

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination  
# ps aux | grep dnsmasq
nobody    2892  0.0  0.0  12388   920 ?        S    22:26   0:00 dnsmasq 
--keep-in-foreground --strict-order --bind-interfaces --pid-file  --conf-
file  --listen-address 192.168.122.1 --except-interface lo --dhcp-
leasefile=/var/lib/libvirt/dhcp-default.leases --dhcp-range 
192.168.122.2,192.168.122.254

However, I still fail to get an IP address in my virtual machine.

In the logs, I cannot find anything problematic at first sight, libvirtd 
when ran with the verbose option, continuously gives this:
Oct 19 22:45:02 defected libvirtd: EVENT: Poll got 1 event
Oct 19 22:45:02 defected libvirtd: EVENT: Dispatch 10 1 0x633040
Oct 19 22:45:02 defected libvirtd: EVENT: Remove handle 10
Oct 19 22:45:02 defected libvirtd: EVENT: mark delete 5
Oct 19 22:45:02 defected libvirtd: EVENT: Add handle 10 25 0x406e40 
0x633040
Oct 19 22:45:02 defected libvirtd: EVENT: Remove handle 10
Oct 19 22:45:02 defected libvirtd: EVENT: mark delete 6
Oct 19 22:45:02 defected libvirtd: EVENT: Add handle 10 28 0x406e40 
0x633040
Oct 19 22:45:02 defected libvirtd: EVENT: Calculate expiry of 0 timers
Oct 19 22:45:02 defected libvirtd: EVENT: Timeout at 0 due in -1 ms
Oct 19 22:45:02 defected libvirtd: EVENT: Poll on 6 handles 0x6574c0 
timeout -1
Oct 19 22:45:02 defected libvirtd: EVENT: Poll got 1 event
Oct 19 22:45:02 defected libvirtd: EVENT: Dispatch 10 4 0x633040
Oct 19 22:45:02 defected libvirtd: EVENT: Remove handle 10
Oct 19 22:45:02 defected libvirtd: EVENT: mark delete 5
Oct 19 22:45:02 defected libvirtd: EVENT: Add handle 10 25 0x406e40 
0x633040
Oct 19 22:45:02 defected libvirtd: EVENT: Calculate expiry of 0 timers
Oct 19 22:45:02 defected libvirtd: EVENT: Timeout at 0 due in -1 ms
Oct 19 22:45:02 defected libvirtd: EVENT: Poll on 6 handles 0x6574c0 
timeout -1
Oct 19 22:45:02 defected libvirtd: EVENT: Poll got 1 event

Any idea what is wrong or what I should check to debug this further?

-- 
Frederik Himpe


[Date Prev][Date Next]   [Thread Prev][Thread Next]   [Thread Index] [Date Index] [Author Index]