[Xen-users] Xen 3.0.2.2 - Losing network after starting xend. [SOLVED]

["JHJE (Jan Holst Jensen)" <jhje@xxxxxxxxxxxxxxx>]

Hi list.

Found this reference on the net:
 
http://mark.foster.cc/wiki/index.php/Xen_3.0.x_on_Debian_Sarge
 
"If you are upgrading on top of a Xen 2.0.x
installation, move or rename the /etc/xen/scripts
folder, lest your networking not work after the
upgrade."
 
and upgrading was exactly what I had done and this did the trick for me!
Rebooted in a default 2.4 Debian kernel, did a "rm -rf /etc/xen" and
then went to /root/xen-xen-3.0.2-2/ and did a "sh ./install.sh" and
rebooted in Xen3. "/etc/init.d/xend start" now starts up correctly.

Cheers
-- Jan
_______________________________________________________

Hi list.

I am trying to upgrade a well-running server from Xen 2.0.6 to 3.0.2.2.
After building and installing 3.0.2.2 from source the machine boots OK
in 3.0.2.2 and dom0 comes up and I ssh into it. But after starting xend
I loose the network. Going to the physical console I did an 'ifconfig'
and had the response below.

What's wrong here ? Is Xen trying to change my network card to run IPV6,
or has it just renamed eth1 (which is the physical network connection)
to veth1 and use IPV6 internally for the bridging ? How can I get
network connectivity back ?

Cheers
-- Jan Holst Jensen, Novo Nordisk A/S, Denmark

eth1      Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF
          inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
          UP BROADCAST RUNNING NOARP MULTICAST  MTU:1500  Metric:1
          RX packets:67054 errors:0 dropped:0 overruns:1 frame:0
          TX packets:190 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:44173742 (42.1 MiB)  TX bytes:17478 (17.0 KiB)
          Interrupt:18 Base address:0xcc00

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: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)

veth0     Link encap:Ethernet  HWaddr 00:01:03:2B:38:76
          inet addr:10.9.18.135  Bcast:10.9.19.255  Mask:255.255.255.255
          inet6 addr: fe80::201:3ff:fe2b:3876/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:65811 errors:0 dropped:0 overruns:0 frame:0
          TX packets:228 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:43368120 (41.3 MiB)  TX bytes:16454 (16.0 KiB)

vif0.0    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF
          inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:227 errors:0 dropped:0 overruns:0 frame:0
          TX packets:65811 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:16364 (15.9 KiB)  TX bytes:43368120 (41.3 MiB)

xen-br0   Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF
          inet6 addr: fe80::200:ff:fe00:0/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:61912 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:41053352 (39.1 MiB)  TX bytes:468 (468.0 b)

Before running xend, the output of ifconfig is

eth1      Link encap:Ethernet  HWaddr 00:01:03:2B:38:76
          inet addr:10.9.18.135  Bcast:10.9.19.255  Mask:255.255.254.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:6376 errors:0 dropped:0 overruns:1 frame:0
          TX packets:126 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:4316185 (4.1 MiB)  TX bytes:15152 (14.7 KiB)
          Interrupt:52 Base address:0xdc80

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: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)

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