[Xen-users] Weird Network issue

ezequiel@smart-bridge.com.ar
Mon, 03 Aug 2009 16:25:48 -0000

Hi all:

I am pretty new to xen, but ,thanks to you, I am learning fast :)

I have a Dell Poweredge 2950 server running Debian Lenny as Dom0 named Asgard
I have configured three DomU (Loki, Hermod and Thor) with DHCP support.
All the machines (Dom0 and DomU''s) ask for an IP address to a DHCP
server in the
Office LAN.

The DHCP server is configured to bind certain IP addresses to the Dom0 and DomU
MAC''s that works flawlessly.
When I ping to Asgard, Loki, Hemrod and Thor I have response... but when I try
to
make a connection (ssh for example) to Loki from the outside I have a connection
time out message (this happens only with loki DomU, the other ones works fine)

Here''s a funny thing... I can SSH to a machine in the outside from
Loki. If there
is a connection established between Loki and other host, I can connect to Loki
from the outside. When I disconnect Loki from the host in the Internet i
can''t
connect to Loki again.

Any ideas?

Here''s the config files of my DomU''s

Loki:
--------------------------------------
kernel = "/boot/vmlinuz-2.6.26-2-xen-686"
ramdisk = "/boot/initrd.img-2.6.26-2-xen-686"
memory = 512
name = "Loki"
vif = [ ''mac=00:16:3e:5f:c3:25'',
''ip=192.168.1.3'' ]
dhcp = "dhcp"
extra = "xencons=tty clocksource=jiffies"
disk = [''file:/srv/xen/Loki/Loki.img,sda1,w'',
''file:/srv/xen/Loki/Loki.swap,sda2,w'']
root = "/dev/sda1 ro"
-------------------------------------


Hemrod
-------------------------------------
kernel = "/boot/vmlinuz-2.6.26-2-xen-686"
ramdisk = "/boot/initrd.img-2.6.26-2-xen-686"
memory = 512
name = "Hemrod"
vif = [ "mac=00:22:22:24:6d:fb" ]
dhcp = "dhcp"
extra = "xencons=tty clocksource=jiffies"
disk = [''file:/srv/xen/Hermod/Hermod.img,sda1,w'',
''file:/srv/xen/Hermod/Hermod.swap,sda2,w'']
root = "/dev/sda1 ro"
-------------------------------------

Thor
-------------------------------------
kernel = "/boot/vmlinuz-2.6.26-2-xen-686"
ramdisk = "/boot/initrd.img-2.6.26-2-xen-686"
memory = 512
name = "Thor"
vif = [ "mac=00:22:22:24:6e:00" ]
dhcp = "dhcp"
extra = "xencons=tty clocksource=jiffies"
disk = [''file:/srv/xen/Thor/Thor.img,sda1,w'',
''file:/srv/xen/Thor/Thor.swap,sda2,w'']
root = "/dev/sda1 ro"
--------------------------------------


Thanks in advance

Zeke

PD: Sorry my bad english :-S





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