[Xen-users] 2 network connection for dom0 and domU(s)

[Gabor Szilagyi <szilagyi@xxxxxxxxxxxx>]

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I am new to xen and went through the wiki(s) on bridging btw dom0 and domU.

My physical host has two network card which needs to be attached to two
different network (one private one public).

First using one bridge was successful but I am having trouble to bring
up the second. I have tried to  modifie the xendconfig and tried to
create a custom wrapper for the bridging script following some examples.

The dom0 is Debian Squeeze (base install) with dom0 kernel compiled from
the jeremy's tree (no problem there). The Hypervisor 3.4.2 (64bit)

I have not found exact receipt for the layout I want

dom0 -- eth0 -- XX.XX.242.0/24 -- "bridge1" -- eth0 -- domU1
dom0 -- eth1 -- 10.0.0.0/24    -- "bridge2" -- eth1 -- domU1

All the interfaces will be using static IP (I have no problem
configuring those within their OS).


Current setup:

rasnew:/etc/xen# cat xend-config.sxp|grep -v ^#|grep bridge
(network-script network-bridge-custom)
(vif-script vif-bridge)

rasnew:/etc/xen# cat ./scripts/network-bridge-custom
#!/bin/sh
/etc/xen/scripts/network-bridge "$@" netdev=eth0
/etc/xen/scripts/network-bridge "$@" netdev=eth1


The test domU config is like this the uncommented line would hang the
domU although it shows up in xm list

rasnew:/etc/xen# cat test1_pv.cfg
bootloader = '/usr/lib/xen-3.4/bin/pygrub'
memory = 256
name = "testPV"
vif = [ 'mac=00:16:3e:00:01:06, bridge=eth0' , ]
#vif = [ 'mac=00:16:3e:00:01:06, bridge=eth0' , 'mac=00:16:3e:10:01:01,
bridge=eth1', ]
disk = [ 'phy:/dev/vm-vg/testdomU.disk,xvda1,w', ]

On the host both eth0 and eth1 us up :

rasnew:/etc/xen# ifconfig
eth0      Link encap:Ethernet  HWaddr 00:21:86:ef:3e:bb
          inet addr: XX.XX.242.105  Bcast: XX.XX.242.255  Mask:255.255.255.0
          inet6 addr: fe80::221:86ff:feef:3ebb/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:643696 errors:0 dropped:0 overruns:0 frame:0
          TX packets:61616 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:129478544 (123.4 MiB)  TX bytes:7094105 (6.7 MiB)

eth1      Link encap:Ethernet  HWaddr 00:0e:0c:64:cf:3c
          inet addr:10.0.0.105  Bcast:10.0.0.255  Mask:255.255.255.0
          UP BROADCAST MULTICAST  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:1000
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)



Not sure what else I should list here :-)

Any suggestion would be appreciated. Can this be done with the xen
scripts or I have to build the bridges manually?

Thanks.

Gabor

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Gabor Szilagyi (Mr.)
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