Re: [Xen-users] Conflict with Xen bridge?

[Marc Patino Gómez <mpatino@xxxxxxxxxxxx>]

Hi again,

as you can see, on brctl output there is only one virtual interface 
vif0.0, on your xenbr0 bridge, and there isn't any physical interface. I 
advice to put the following config:
Create the following file:

/etc/xen/scripts/network-bridge-wrapper

give it permisions to be executable:

Put

#!/bin/sh
/etc/xen/scripts/network-bridge start bridge=xenbr0 vifnum=0

Change the following line in /etc/xen/xend-config.sxp:

(network-script 'network-bridge netdev=eth1')

for this line

(network-script network-bridge-wrapper)

After this restart your xend daemon, or reboot your box.


With this config a brctl show output may be:

sunfire:/home/xxxxxx# brctl show
bridge name     bridge id               STP enabled     interfaces
xenbr0         8000.feffffffffff       no                          vif0.0
                                                                       
           peth0
so... change the line in the file 
/etc/xen/scripts/network-bridge-wrapper as your needs, also you can put 
more lines to create more bridges, you can make very cool configs with 
xen networking :)

I hope it will be useful.

Regards,

Marc
                                                      

Daniel Bareiro wrote:
> On Tuesday, 25 March 2008 10:25:35 +0100,
> Marc Patino Gómez wrote:
>
>   
> > Hi Daniel,
> >     
> Hi Marc. Thanks for your reply.
>
>   
> > try to sent more info, a brctl output will be useful, and probably
> > someone in the list could help you:
> >     
> I'm using Xen 3.0.3-1 from Debian Etch repositories. This is the default
> config file provided by Debian:
>
> (network-script network-dummy)
> (vif-script vif-bridge)
> (dom0-min-mem 196)
> (dom0-cpus 0)
>
> And this is the config file after my modifications:
>
> (network-script 'network-bridge netdev=eth1')
> (dom0-min-mem 196)
> (dom0-cpus 0)
>
>   
> > # brctl show
> >     
> brctl show
> bridge name     bridge id               STP enabled     interfaces
> xenbr0          8000.feffffffffff       no              vif0.0
>
> ifconfig
> eth0      Link encap:Ethernet  HWaddr 00:18:F3:9D:8C:D8
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:1390 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:638 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:1000
>           RX bytes:211154 (206.2 KiB)  TX bytes:78676 (76.8 KiB)
>           Interrupt:19 Base address:0xa000
>
> eth1      Link encap:Ethernet  HWaddr 00:18:F3:9D:89:3A
>           inet addr:10.1.0.10  Bcast:10.1.0.255  Mask:255.255.255.0
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:6 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:57 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:0
>           RX bytes:360 (360.0 b)  TX bytes:4678 (4.5 KiB)
>
> 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:20 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:20 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:0
>           RX bytes:1950 (1.9 KiB)  TX bytes:1950 (1.9 KiB)
>
> peth1     Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF
>           UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
>           RX packets:734 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:609 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:1000
>           RX bytes:89800 (87.6 KiB)  TX bytes:133401 (130.2 KiB)
>           Interrupt:18 Base address:0x8000
>
> ppp0      Link encap:Point-to-Point Protocol
>           inet addr:190.51.68.180  P-t-P:200.51.241.209  Mask:255.255.255.255
>           UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1492  Metric:1
>           RX packets:1348 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:596 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:3
>           RX bytes:178894 (174.7 KiB)  TX bytes:64243 (62.7 KiB)
>
> vif0.0    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF
>           UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
>           RX packets:57 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:0
>           RX bytes:4678 (4.5 KiB)  TX bytes:360 (360.0 b)
>
> xenbr0    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF
>           UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
>           RX packets:2 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:56 (56.0 b)  TX bytes:0 (0.0 b)
>
> When I start xend with my modified config file, I lose the Internet
> connection and the LAN connectivity from the gateway.
>
> Thank in advance.
>
> Regards,
> Daniel
>   
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