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Daniel Bareiro

2008-Mar-24 20:09 UTC

[Xen-users] Conflict with Xen bridge?

Hi all!

I''ve an AMD Athlon X2 3800+ operating as gateway/firewall (dom0) for my
LAN. Below an scheme of it:

                                          _____
                                     ____/     \____
          +---------------+         /               \
          | Bridge/Router +---------|    Internet   |
          +-------+-------+         \____       ____/
                  |                      \_____/
                  | eth0
           +------+-------+
           |  Gway / FW   |
           +------+-------+         8 x 10/100 mbps          _____
                  | eth1              +--------+        ____/     \____
                  |                   |        |       /               \
                  +-------------------+ Switch +-------|      LAN      |
                                      |        |       \____       ____/
                                      +--------+            \_____/


I''d like to have severals domUs to take advantage of this hardware. The
Internet connection is via PPPoE by means of eth0. This is
/etc/network/interfaces from gateway:

------------------------------------------------------------------------
alderamin:~# cat /etc/network/interfaces
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
auto eth0
iface eth0 inet static

auto eth1
iface eth1 inet static
       address 10.1.0.10
       netmask 255.255.255.0
       network 10.1.0.0
       broadcast 10.1.0.255

# To PPPoE
auto dsl-provider
iface dsl-provider inet ppp
pre-up /sbin/ifconfig eth0 up
provider dsl-provider
------------------------------------------------------------------------

But when I start xend, I lose the Internet connection and the LAN
connectivity from the gateway. This can be due to any conflict with Xen
bridge? This is xen-config.sxp that I was using:

alderamin:~# cat /etc/xen/xend-config.sxp |grep ^[^#]
network-script ''network-bridge netdev=eth1'')
(dom0-min-mem 196)
(dom0-cpus 0)

Thanks in advance.

Regards,
Daniel
-- 
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Marc Patino Gómez

2008-Mar-25 09:25 UTC

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

Hi Daniel,

try to sent more info, a brctl output will be useful, and probably 
someone in the list could help you:

# brctl show


Regards,

Marc

Daniel Bareiro wrote:> Hi all!
>
> I''ve an AMD Athlon X2 3800+ operating as gateway/firewall (dom0)
for my
> LAN. Below an scheme of it:
>
>                                           _____
>                                      ____/     \____
>           +---------------+         /               \
>           | Bridge/Router +---------|    Internet   |
>           +-------+-------+         \____       ____/
>                   |                      \_____/
>                   | eth0
>            +------+-------+
>            |  Gway / FW   |
>            +------+-------+         8 x 10/100 mbps          _____
>                   | eth1              +--------+        ____/     \____
>                   |                   |        |       /               \
>                   +-------------------+ Switch +-------|      LAN      |
>                                       |        |       \____       ____/
>                                       +--------+            \_____/
>
>
> I''d like to have severals domUs to take advantage of this
hardware. The
> Internet connection is via PPPoE by means of eth0. This is
> /etc/network/interfaces from gateway:
>
> ------------------------------------------------------------------------
> alderamin:~# cat /etc/network/interfaces
> # This file describes the network interfaces available on your system
> # and how to activate them. For more information, see interfaces(5).
>
> # The loopback network interface
> auto lo
> iface lo inet loopback
>
> # The primary network interface
> auto eth0
> iface eth0 inet static
>
> auto eth1
> iface eth1 inet static
>        address 10.1.0.10
>        netmask 255.255.255.0
>        network 10.1.0.0
>        broadcast 10.1.0.255
>
> # To PPPoE
> auto dsl-provider
> iface dsl-provider inet ppp
> pre-up /sbin/ifconfig eth0 up
> provider dsl-provider
> ------------------------------------------------------------------------
>
> But when I start xend, I lose the Internet connection and the LAN
> connectivity from the gateway. This can be due to any conflict with Xen
> bridge? This is xen-config.sxp that I was using:
>
> alderamin:~# cat /etc/xen/xend-config.sxp |grep ^[^#]
> network-script ''network-bridge netdev=eth1'')
> (dom0-min-mem 196)
> (dom0-cpus 0)
>
> Thanks in advance.
>
> Regards,
> Daniel
>   
> ------------------------------------------------------------------------
>
> _______________________________________________
> Xen-users mailing list
> Xen-users@lists.xensource.com
> http://lists.xensource.com/xen-users

_______________________________________________
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Daniel Bareiro

2008-Mar-26 02:03 UTC

head link

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

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
-- 
Daniel Bareiro - System Administrator
Fingerprint: BFB3 08D6 B4D1 31B2 72B9  29CE 6696 BF1B 14E6 1D37
Powered by Debian GNU/Linux Lennt - Linux user #188.598


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Marc Patino Gómez

2008-Mar-26 12:01 UTC

head link

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

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
>   
> ------------------------------------------------------------------------
>
> _______________________________________________
> Xen-users mailing list
> Xen-users@lists.xensource.com
> http://lists.xensource.com/xen-users

_______________________________________________
Xen-users mailing list
Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users

Daniel Bareiro

2008-Mar-27 09:26 UTC

head link

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

On Wednesday, 26 March 2008 13:01:05 +0100,
Marc Patino Gómez wrote:
> Hi again,
Hi Marc.
> 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:
copy/paste mistake :-(

bridge name     bridge id               STP enabled     interfaces
xenbr0          8000.feffffffffff       no              vif0.0
                                                        peth1

I''d be consistent with the output of ifconfig which I put below in the
same e-mail :-)
> 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
I try this configuration, but I don''t see up both peth and vif0.0
interfaces:

brctl show
bridge name     bridge id               STP enabled     interfaces
xenbr0          8000.000000000000       no


cat /etc/xen/xend-config.sxp | grep ^[^#]
(network-script network-bridge-wrapper)
(dom0-min-mem 196)
(dom0-cpus 0)


ll /etc/xen/scripts/network-bridge-wrapper
-rwxr-x--- 1 root root 71 2008-03-27 00:52
/etc/xen/scripts/network-bridge-wrapper

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


alderamin:~# ifconfig
eth0      Link encap:Ethernet  HWaddr 00:18:F3:9D:8C:D8
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:3732 errors:0 dropped:0 overruns:0 frame:0
          TX packets:4090 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:1780249 (1.6 MiB)  TX bytes:537354 (524.7 KiB)
          Interrupt:17

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:4796 errors:0 dropped:0 overruns:0 frame:0
          TX packets:4069 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:587242 (573.4 KiB)  TX bytes:1809537 (1.7 MiB)
          Interrupt:16 Base address:0xe000

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:2 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:276 (276.0 b)  TX bytes:276 (276.0 b)

ppp0      Link encap:Point-to-Point Protocol
          inet addr:190.51.122.4  P-t-P:200.51.241.209  Mask:255.255.255.255
          UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1492  Metric:1
          RX packets:3569 errors:0 dropped:0 overruns:0 frame:0
          TX packets:3927 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:3
          RX bytes:1691867 (1.6 MiB)  TX bytes:446009 (435.5 KiB)

xenbr0    Link encap:Ethernet  HWaddr 00:00:00:00:00:00
          UP BROADCAST RUNNING NOARP  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:0
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

> 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.
Thanks for your reply.

Regards,
Daniel
-- 
Fingerprint: BFB3 08D6 B4D1 31B2 72B9  29CE 6696 BF1B 14E6 1D37
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Marc Patino Gómez

2008-Mar-27 10:35 UTC

head link

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

Hi,

>> 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:
>>     
>
> copy/paste mistake :-(
>
> bridge name     bridge id               STP enabled     interfaces
> xenbr0          8000.feffffffffff       no              vif0.0
>                                                         peth1
>
> I''d be consistent with the output of ifconfig which I put below in
the
> same e-mail :-)
>   humanum errarum est :)

About the wrapper script of network-bridge... I don''t understand why it
don''t work, try to execute it by hand

/etc/xen/scripts/network-bridge start bridge=xenbr0 vifnum=0

... and use brctl command to add, del interfaces and bridges...
 
Anyway, to debug the errors I will go step by step:

----Important-----:
Think that your config in /etc/network/interfaces your eth0 the pppoe interface
is vif0.0 in dom0 ! and your are attaching it to xenbr0 bridge with peth1 (eth1
physical interface)

Think about it, at the moment I don''t have much time to give you a more
detailed answer :(.

To do your scenario I will create 2  bridges and the via iptables make the FW ,
nat ...

Tell me about your progress, ;)

Marc




>   
>> 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
>>     
>
> I try this configuration, but I don''t see up both peth and vif0.0
> interfaces:
>
> brctl show
> bridge name     bridge id               STP enabled     interfaces
> xenbr0          8000.000000000000       no
>
>
> cat /etc/xen/xend-config.sxp | grep ^[^#]
> (network-script network-bridge-wrapper)
> (dom0-min-mem 196)
> (dom0-cpus 0)
>
>
> ll /etc/xen/scripts/network-bridge-wrapper
> -rwxr-x--- 1 root root 71 2008-03-27 00:52
/etc/xen/scripts/network-bridge-wrapper
>
> cat /etc/xen/scripts/network-bridge-wrapper
> #!/bin/sh
> /etc/xen/scripts/network-bridge start bridge=xenbr0 vifnum=0
>
>
> alderamin:~# ifconfig
> eth0      Link encap:Ethernet  HWaddr 00:18:F3:9D:8C:D8
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:3732 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:4090 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:1000
>           RX bytes:1780249 (1.6 MiB)  TX bytes:537354 (524.7 KiB)
>           Interrupt:17
>
> 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:4796 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:4069 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:1000
>           RX bytes:587242 (573.4 KiB)  TX bytes:1809537 (1.7 MiB)
>           Interrupt:16 Base address:0xe000
>
> 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:2 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:2 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:0
>           RX bytes:276 (276.0 b)  TX bytes:276 (276.0 b)
>
> ppp0      Link encap:Point-to-Point Protocol
>           inet addr:190.51.122.4  P-t-P:200.51.241.209 
Mask:255.255.255.255
>           UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1492  Metric:1
>           RX packets:3569 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:3927 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:3
>           RX bytes:1691867 (1.6 MiB)  TX bytes:446009 (435.5 KiB)
>
> xenbr0    Link encap:Ethernet  HWaddr 00:00:00:00:00:00
>           UP BROADCAST RUNNING NOARP  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:0
>           RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)
>
>
>   
>> 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.
>>     
>
> Thanks for your reply.
>
> Regards,
> Daniel
>   
> ------------------------------------------------------------------------
>
> _______________________________________________
> Xen-users mailing list
> Xen-users@lists.xensource.com
> http://lists.xensource.com/xen-users

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Daniel Bareiro

2008-Mar-29 19:05 UTC

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

On Thursday, 27 March 2008 11:35:32 +0100,
Marc Patino Gómez wrote:
> Hi,
Hi Marc.
> About the wrapper script of network-bridge... I don''t understand
why
> it  don''t work, try to execute it by hand
> /etc/xen/scripts/network-bridge start bridge=xenbr0 vifnum=0
> ... and use brctl command to add, del interfaces and bridges...
> Anyway, to debug the errors I will go step by step:
> ----Important-----:
> Think that your config in /etc/network/interfaces your eth0 the pppoe
> interface is vif0.0 in dom0 ! and your are attaching it to xenbr0
> bridge with peth1 (eth1 physical interface)
> Think about it, at the moment I don''t have much time to give you a
> more detailed answer :(. 
Mmmm... executing by hand the previous line, I got the following output.
I suspect that it is the cause because of which the wrapper script
don''t
work.

ifdown: interface eth0 not configured
SIOCSIFNAME: Device or resource busy

But vifnum=1 causes that it loses the connectivity with LAN and
Internet. Some idea about why it can happen?
> To do your scenario I will create 2  bridges and the via iptables make
> the FW , nat ...
> Tell me about your progress, ;)
Thanks for your time. I will try to read about advanced networking
configuration with Xen. But I will accept any suggestion or comment that
you can give me :-)

Regards,
Daniel
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Marquez, Anthony

2008-Mar-30 13:41 UTC

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

Daniel, I am new to using Linux and Xen but here is what I have had to do to get
Xebr0 working.

When you do the install, you are asked to use DHCP or manually input and IP.
When using DHCP I couldn''t get Xenbro to come up as an option when I
started using Paravirtualization (gui one) as an option. Only option I had was
VIRTUAL and using the vifxx option. When I rebuilt using an assigned (manual) IP
Xenbr0 became an option and everything worked - each VM was assigned an IP and
could be seen outside our firewall.

I have rebuilt these machines about 20 times (one PE2950 housing three virtual
RHEL5 OS connected to an EMC array)now since we are migrating off our IBM
mainframe to a RedHat/Jboss/MySQL alternative. So while programmers are working
on Java I have been playing with options for Linux/RHEL5.1 and Xen connected to
a EMC CX-10c.

A newbie here but hope that helps.

Tony

-----Original Message-----
From: xen-users-bounces@lists.xensource.com
[mailto:xen-users-bounces@lists.xensource.com] On Behalf Of Daniel Bareiro
Sent: Saturday, March 29, 2008 1:06 PM
To: Xen-Users
Subject: Re: [Xen-users] Conflict with Xen bridge?

On Thursday, 27 March 2008 11:35:32 +0100, Marc Patino Gómez wrote:
> Hi,
Hi Marc.
> About the wrapper script of network-bridge... I don''t understand
why
> it  don''t work, try to execute it by hand
> /etc/xen/scripts/network-bridge start bridge=xenbr0 vifnum=0
> ... and use brctl command to add, del interfaces and bridges...
> Anyway, to debug the errors I will go step by step:
> ----Important-----:
> Think that your config in /etc/network/interfaces your eth0 the pppoe 
> interface is vif0.0 in dom0 ! and your are attaching it to xenbr0 
> bridge with peth1 (eth1 physical interface)
> Think about it, at the moment I don''t have much time to give you a
> more detailed answer :(.
Mmmm... executing by hand the previous line, I got the following output.
I suspect that it is the cause because of which the wrapper script
don''t work.

ifdown: interface eth0 not configured
SIOCSIFNAME: Device or resource busy

But vifnum=1 causes that it loses the connectivity with LAN and Internet. Some
idea about why it can happen?
> To do your scenario I will create 2  bridges and the via iptables make 
> the FW , nat ...
> Tell me about your progress, ;)
Thanks for your time. I will try to read about advanced networking configuration
with Xen. But I will accept any suggestion or comment that you can give me :-)

Regards,
Daniel
--
Fingerprint: BFB3 08D6 B4D1 31B2 72B9  29CE 6696 BF1B 14E6 1D37 Powered by
Debian GNU/Linux Lennt - Linux user #188.598

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Xen users - Mar 2008 - Conflict with Xen bridge?

[Xen-users] Conflict with Xen bridge?

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

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

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

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

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

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

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