Hi *.*,
This is a continuation on the 2 NICs thread after some more testing.
Just to remember my goal.
---------------------------
I want to create a domU with 2 virtual NICS. One of them will contact
the outside world, the other one will contact a VPN. No reason in
concrete for choosing the bridging protocol, only because its the
default one. I installed the dom0 with the 2 NICs active, with the net
cables already placed to get correct IP's.
My OS configuration:
----------------------
[root@enmr03 ~]# uname -a
Linux enmr03.chem.uu.nl 2.6.18-128.el5xen #1 SMP Wed Jan 21 11:12:42 EST
2009 x86_64 x86_64
[CentOS 52 x86_64, with gitco xen running (3.3.1)]
Xen starst ok, and dom0 is seen.
[root@enmr03 xen]# xm list
Name ID Mem VCPUs State
Time(s)
Domain-0 0 1877 2
r----- 84.3
I enabled both NICSs (eth0, eth1) while installing the OS.
An ifconfig and brctl displays the following [removed stuff]:
[root@enmr03 xen]# ifconfig
eth0 Link encap:Ethernet HWaddr 00:15:17:8D:0B:EF
inet addr:xxx.yyy.zzz.74 Bcast:xxx.yyy.zzz.255
Mask:255.255.255.0
inet6 addr: fe80::215:17ff:fe8d:bef/64 Scope:Link
eth1 Link encap:Ethernet HWaddr 00:15:17:8D:0B:F1
inet addr:10.0.0.48 Bcast:10.0.0.255 Mask:255.255.255.0
inet6 addr: fe80::215:17ff:fe8d:bf1/64 Scope:Link
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
peth1 Link encap:Ethernet HWaddr 00:15:17:8D:0B:F1
inet6 addr: fe80::215:17ff:fe8d:bf1/64 Scope:Link
virbr0 Link encap:Ethernet HWaddr 00:00:00:00:00:00
inet addr:192.168.122.1 Bcast:192.168.122.255 Mask:255.255.255.0
inet6 addr: fe80::200:ff:fe00:0/64 Scope:Link
[root@enmr03 ~]# brctl show
bridge name bridge id STP enabled interfaces
eth1 8000.0015178d0bf1 no peth1
virbr0 8000.000000000000 yes
Thus, eth1 --> peth1 seem's Ok. Following Thomas Halinka tips on a
previous e-mail:
http://lists.xensource.com/archives/html/xen-users/2009-03/msg00772.html
I changed xend-confix.sxp file:
[root@enmr03 xen]# diff xend-config.sxp xend-config.sxp.orig.01abr09
< (network-script network-2nics)
> (network-script network-bridges)
[root@enmr03 xen]# cat /etc/xen/scripts/network-2nics
#!/bin/bash
/etc/xen/scripts/network-bridge $1 netdev=eth0 bridge=xenbr0 vifnum=0
/etc/xen/scripts/network-bridge $1 netdev=eth1 bridge=xenbr1 vifnum=1
After rebooting the machine, an ifconfig and brctl again:
[root@enmr03 ~]# ifconfig -a
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
peth0 Link encap:Ethernet HWaddr 00:15:17:8D:0B:EF
inet6 addr: fe80::215:17ff:fe8d:bef/64 Scope:Link
peth1 Link encap:Ethernet HWaddr 00:15:17:8D:0B:F1
inet6 addr: fe80::215:17ff:fe8d:bf1/64 Scope:Link
virbr0 Link encap:Ethernet HWaddr 00:00:00:00:00:00
inet addr:192.168.122.1 Bcast:192.168.122.255 Mask:255.255.255.0
inet6 addr: fe80::200:ff:fe00:0/64 Scope:Link
[... snipped ... vif0.0 --> vif0.4, sit0, veth0-->veth4]
xenbr0 Link encap:Ethernet HWaddr 00:15:17:8D:0B:EF
inet addr:xxx.yyy.zzz.74 Bcast:xxx.yyy.zzz.255
Mask:255.255.255.0
xenbr1 Link encap:Ethernet HWaddr 00:15:17:8D:0B:F1
inet addr:10.0.0.48 Bcast:10.0.0.255 Mask:255.255.255.0
[root@enmr03 ~]# brctl show
bridge name bridge id STP enabled interfaces
virbr0 8000.000000000000 yes
xenbr0 8000.0015178d0bef no peth0
xenbr1 8000.0015178d0bf1 no peth1
During the reboot I noticed some errors. From the Network Configuration
Window, I see that both NICs are down, and these are the message errors
that appeared on the reboot:
---->
Error for wireless request "Set Encode" (8B2A) :
SET failed on device eth1 ; No such device.
Determining IP information for eth1...SIOCSIFADDR: No such device
eth1: unknown interface: No such device
eth1: unknown interface: No such device
failed.
Error for wireless request "Set Encode" (8B2A) :
SET failed on device eth0 ; No such device.
SIOCGIFFLAGS: No such device
Failed to bring up eth0.
---->
Thus, though 2 bridges were correctly created (with the appropriate
IP's), the physical devices are down!
Any insights?
Cheers,
N.
--
==============================================
Nuno Ricardo Santos Loureiro da Silva Ferreira
NMR Spectroscopy Research Group
Bijvoet Center for Biomolecular Research
Utrecht University
Bloembergen gebouw
Padualaan 8, 3584 CH Utrecht
The Netherlands
P: +31.(0)30.253 9932
F: +31.(0)30.253 2652
E: n.l.ferreira@xxxxx
W: http://nmr.chem.uu.nl
==============================================
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