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Re: [Xen-users] Can't get guest domain network working!


  • To: Pallab Chakrabarty <pchakrabarty@xxxxxxxxxxxxxxx>, xen-users@xxxxxxxxxxxxxxxxxxx
  • From: Donglai Zhang <dlzhangster@xxxxxxxxx>
  • Date: Wed, 17 Jun 2009 15:29:44 +0930
  • Cc:
  • Delivery-date: Tue, 16 Jun 2009 23:00:43 -0700
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  • List-id: Xen user discussion <xen-users.lists.xensource.com>

Xen version is 2.6.18.8-xen.

regards,

Donglai




On Wed, Jun 17, 2009 at 3:26 PM, Pallab Chakrabarty <pchakrabarty@xxxxxxxxxxxxxxx> wrote:

What's of your Xen and OS make/ver?

- regards
   Pallab



-----Original Message-----
From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
[mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Donglai Zhang
Sent: Wednesday, June 17, 2009 11:16 AM
To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-users] Can't get guest domain network working!

Hi, there:

I have installed xen(2.6.18.8-xen) and had
successfully started domU guests (one or two) from dom0. However, I am
not able to start the network for domU machines.

Following is the information from my linux box.
After the it is started:
$ ifconfig
eth1      Link encap:Ethernet  HWaddr 00:A0:C9:D6:65:DB
         inet addr:XXX.XXX.10.133  Bcast:XXX.XXX.10.255
Mask:255.255.255.0
         inet6 addr: fe80::2a0:c9ff:fed6:65db/64 Scope:Link
         UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
         RX packets:196716 errors:0 dropped:0 overruns:0
frame:1
         TX packets:82301 errors:0 dropped:0 overruns:0
carrier:0
         collisions:0 txqueuelen:1000
         RX bytes:91072761 (86.8 MiB)  TX bytes:15558692
(14.8 MiB)
         Interrupt:18

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:6440 errors:0 dropped:0 overruns:0
frame:0
         TX packets:6440 errors:0 dropped:0 overruns:0
carrier:0
         collisions:0 txqueuelen:0
         RX bytes:55534272 (52.9 MiB)  TX bytes:55534272
(52.9 MiB)

////////////Start xend
#xend start
Nothing to flush.
Waiting for peth1 to negotiate link.
# ifconfig
eth1      Link encap:Ethernet  HWaddr 00:A0:C9:D6:65:DB
         inet addr:XXX.XXX.10.133  Bcast:XXX.XXX.10.255
Mask:255.255.255.0
         inet6 addr: fe80::2a0:c9ff:fed6:65db/64 Scope:Link
         UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
         RX packets:25 errors:0 dropped:0 overruns:0
frame:0
         TX packets:40 errors:0 dropped:0 overruns:0
carrier:0
         collisions:0 txqueuelen:0
         RX bytes:3277 (3.2 KiB)  TX bytes:10992 (10.7 KiB)

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:6440 errors:0 dropped:0 overruns:0
frame:0
         TX packets:6440 errors:0 dropped:0 overruns:0
carrier:0
         collisions:0 txqueuelen:0
         RX bytes:55534272 (52.9 MiB)  TX bytes:55534272
(52.9 MiB)

peth1     Link encap:Ethernet  HWaddr 00:A0:C9:D6:65:DB
         inet6 addr: fe80::2a0:c9ff:fed6:65db/64 Scope:Link
         UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
         RX packets:196767 errors:0 dropped:0 overruns:0
frame:1
         TX packets:82358 errors:0 dropped:0 overruns:0
carrier:0
         collisions:0 txqueuelen:1000
         RX bytes:91080163 (86.8 MiB)  TX bytes:15574125
(14.8 MiB)
         Interrupt:18

/////////////The peth1 and eth1 are all available and check the bridge...
# brctl show
bridge name     bridge id               STP enabled     interfaces
eth1            8000.00a0c9d665db       no              peth1

///////////The name of the bridge is "eth1" and interface "peth1" has been
added to the bridge.

///////////Configure the configuration file for the guest domain

************The content of XmGuest.conf*********
kernel = "/boot/vmlinuz-2.6.18.8-xen-U"
memory = 256
name = "ExampleDomain03"
vif = [ 'mac=00:16:3e:31:48:5f', 'bridge=eth1' ]  ###The bridge is given
name eth1
disk = [ 'phy:sda7,sda7,w' ]
dhcp="off"
ip='XXX.XXX.10.134'
netmask="255.255.255.0"
gateway="XXX.XXX.10.99" #The gateway is the same as the one used by dom0
network.
hostname="helloworld"

root = "/dev/sda7 ro"
extra = "4"
extra = "xencons=tty"
***************XmGuest.conf finish here**********************

//////Copy /lib/modules/2.6.18.8-xen/ directory to the guest domain disk.
There are some exceptions
//////from guest domain if I don't do this.

cp -r /lib/modules/2.6.18.8-xen/ /mnt/ubuntu_sda7/lib/modues/

//////Now start the guest domain

# xm create XmGuest.conf
Using config file "./XmGuest.conf".
Started domain ExampleDomain03 (id=11)

///////show xm domains
# xm list
Name                                        ID   Mem VCPUs      State
Time(s)
Domain-0                                     0   510     2     r-----
4443.7
ExampleDomain03                             11   256     1     -b----
9.3

/////////check bridge from dom0
# brctl show
bridge name     bridge id               STP enabled     interfaces
eth1            8000.00a0c9d665db       no              vif11.1

vif11.0

peth1
///////////The bridge has bounded the guest interface.

////////////On domU guest

dlzhang@dlzhang-desktop:~$ ifconfig
eth0      Link encap:Ethernet  HWaddr 00:16:3e:31:48:5f
         UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
         RX packets:365 errors:0 dropped:0 overruns:0 frame:0
         TX packets:4 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:1000
         RX bytes:28617 (28.6 KB)  TX bytes:1368 (1.3 KB)

eth1      Link encap:Ethernet  HWaddr 00:16:3e:08:da:f6
         UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
         RX packets:363 errors:0 dropped:0 overruns:0 frame:0
         TX packets:4 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:1000
         RX bytes:28085 (28.0 KB)  TX bytes:1368 (1.3 KB)

lo        Link encap:Local Loopback
         inet addr:127.0.0.1  Mask:255.0.0.0
         UP LOOPBACK RUNNING  MTU:16436  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)

///////////The network has not been configured successfully.
///////////The eth0 Hardware address is set, but not the ip address

dlzhang@dlzhang-desktop:/etc$ ping XXX.XXX.10.133
connect: Network is unreachable


I have tried with different linux box and different domU, all got the
similar problem.


Would you please give some hints about what might go wrong?


Thanks a lot !

Donglai Zhang



No virus found in this incoming message.
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Version: 8.5.339 / Virus Database: 270.12.75/2182 - Release Date: 06/16/09
21:23:00



--
Donglai Zhang

Ph.D Candidate
School of Computer Science
University of Adelaide,
SA, Australia  5083

Tel: 0061 8 83036166



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