XEN 4.0 Networking.

volga629 · 05-05-2011, 08:11 AM

I setup XEN 4.0 on CentOS 5.6 x86_64.
Installation went without problems.
But have some question about XEN Networking.
By default on startup I have eth0, peth0.
Some reason when I am start xenbr0, eth0 converted to peth0 and left only peth0 and xenbr0 and all traffic is linked to xenbr0.
So when I trying to create guest it create vif interface linked to xenbr0, but it not going anywhere.
The old xen 3 was leaving eth0 and copy peth0 and all was linked to eth0.

Here some output for more information.

Code:

[root@host179 ~]# brctl show
bridge name	bridge id		STP enabled	interfaces
xenbr0		8000.000c2951acb9	no		peth0
[root@host179 ~]# ifconfig -a
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:2050 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2050 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:5111988 (4.8 MiB)  TX bytes:5111988 (4.8 MiB)

peth0     Link encap:Ethernet  HWaddr 00:0C:29:51:AC:B9  
          inet6 addr: fe80::20c:29ff:fe51:acb9/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:405 errors:0 dropped:0 overruns:0 frame:0
          TX packets:83 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:62170 (60.7 KiB)  TX bytes:10199 (9.9 KiB)

xenbr0    Link encap:Ethernet  HWaddr 00:0C:29:51:AC:B9  
          inet addr:XX.XX.XX.XX  Bcast:0.0.0.0  Mask:255.255.255.0
          inet6 addr: fe80::20c:29ff:fe51:acb9/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:361 errors:0 dropped:0 overruns:0 frame:0
          TX packets:65 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:52657 (51.4 KiB)  TX bytes:8942 (8.7 KiB)

[root@host179 ~]# ip route show
XX.XX.XX.XX/24 dev xenbr0  proto kernel  scope link  src XX.XX.XX.XX 
default via XX.XX.XX.XX dev xenbr0

network-bridge script

Code:

#!/bin/sh
dir=$(dirname "$0")
"$dir/network-bridge" "$@" netdev=eth0 bridge=xenbr0

File vm.cfg

Code:

bootloader = "/usr/bin/pygrub"
disk = ['file:/opt/vm_storage/OVM_OL5U6_X86_64_PVM_10GB/System.img,xvda,w']
memory = '768'
name = 'OVM_OL5U6_X86_64_PVM_10GB'
vcpus = 1
on_crash = 'restart'
on_reboot = 'restart'
vfb = [ 'type=vnc,vncunused=1, vnclisten=0.0.0.0' ]
vif = [ 'bridge=xenbr0' ]

Any help or suggestions welcome.
Thank you in advance.