Re: [Xen-users] A classic... Network inside domU

[Lars Erik Dangvard Jensen <lars@xxxxxxxxxxx>]

Ok, I think I have all these modules static compiled in my dom0 kernel 
(http://www.dangvard.dk/xen3/dom0config).
But I'm not sure what exactly the modules are called in the dom0 config 
file. E.g. tun is called CONFIG_TUN etc.
***5 minutes later....***

OMG! I see that I have physically connected the servers eth0 to a wrong 
cable, a wifi ethernet adapter (not a switch!), which is ONLY assigned 
one IP-address...!
LONG LIVE CABLE CHAOS ON MY FLOOR!

Sorry, Francois, to waste your precious time. But now this kind of 
problem also reached the xen-user list! :S
I could have made something up, to hide my own mistake... but I think 
it's pretty funny that I've spend 2 days searching for at problem that 
wasn't there. I really hope it amuses others on the list a bit ;)
Thanks for your help.

François Lapointe skrev:
> Using an (almost) stock xen kernel, here are the modules that load
> after xend starts:
> bash-3.1$ lsmod
> Module                  Size  Used by
> tun                    13184  0
> xt_physdev              3344  1
> loop                   18952  2
> iptable_filter          3968  1
> ip_tables              15348  1 iptable_filter
> x_tables               14468  2 xt_physdev,ip_tables
> bridge                 56084  0
>
> François
>
> 2006/6/28, François Lapointe <flapointe@xxxxxxxxx>:
> > I'm not sure about this one, but you may try :
> > #  echo 1 > /proc/sys/net/ipv4/ip_forward
> > to activate ip forwarding.
> >
> > I try to think of other network modules that may be necessary, but I
> > have most of them compiled in the kernel.
> >
> > François
> >
> > 2006/6/28, Lars Erik Dangvard Jensen <lars@xxxxxxxxxxx>:
> > > I loaded the tun module, but still there's no connection.
> > >
> > > The tun module returns this when loaded:
> > >
> > > tun: no version for "struct_module" found: kernel tainted.
> > > tun: Universal TUN/TAP device driver, 1.6
> > > tun: (C) 1999-2004 Max Krasnyansky <maxk@xxxxxxxxxxxx>
> > >
> > >
> > > What does no version for "struct_module" found: kernel tainted mean?
> > >
> > > Thanks
> > >
> > > Lars
> > >
> > > François Lapointe skrev:
> > > > Make sure your network "tun" module is loaded :
> > > > # modprobe tun
> > > >
> > > > François
> > > >
> > > > 2006/6/27, Lars Erik Dangvard Jensen <lars@xxxxxxxxxxx>:
> > > >> Hi list
> > > >>
> > > >> I've been struggling with this for a while. A classic -> no
> > > >> network/internetaccess inside domU.
> > > >> I've been reading mailing lists, wiki etc., but no luck!
> > > >>
> > > >> I think it's a bit weird because nothing of what I've read that 
> > should
> > > >> cause this have been wrong.
> > > >>
> > > >> dom0 has networkaccess and domU don't.
> > > >>
> > > >> Here's my info on the system running Xen 3.0.2 (installed from xen3
> > > >> sourcedist, custom dom0 and domU kernels but with sourcedists own
> > > >> configs as base as a start)
> > > >>
> > > >> Dom0 operating system:
> > > >> Ubuntu "Dapper Drake" 6.06 LTS
> > > >>
> > > >> Hardware platform:
> > > >> Dell PowerEdge 1850 (see http://dangvard.dk/xen3/1850_specs.pdf)
> > > >>
> > > >> Arch:
> > > >> x86_64
> > > >>
> > > >> Info dom0/U (command output for debugging):
> > > >> http://dangvard.dk/xen3/dom0brctlshow
> > > >> http://dangvard.dk/xen3/dom0config
> > > >> http://dangvard.dk/xen3/dom0dmesg
> > > >> http://dangvard.dk/xen3/dom0ifconfig-a
> > > >> http://dangvard.dk/xen3/dom0interfaces
> > > >> http://dangvard.dk/xen3/dom0netstat-rn
> > > >> http://dangvard.dk/xen3/dom0netstat-s
> > > >> http://dangvard.dk/xen3/dom0xmdmesg
> > > >> http://dangvard.dk/xen3/dom0xmlist
> > > >> http://dangvard.dk/xen3/domainconfig
> > > >> http://dangvard.dk/xen3/domUconfig
> > > >> http://dangvard.dk/xen3/domUdmesg
> > > >> http://dangvard.dk/xen3/domUifconfig-a
> > > >> http://dangvard.dk/xen3/domUinterfaces
> > > >> http://dangvard.dk/xen3/domUnetstat-rn
> > > >> http://dangvard.dk/xen3/domUnetstat-s
> > > >>
> > > >> This comes from time to time inside domU to stdout, what does it 
> > mean?:
> > > >> * INIT: Id "3" respawning too fast: disabled for 5 minutes
> > > >> * INIT: Id "2" respawning too fast: disabled for 5 minutes
> > > >> * INIT: Id "4" respawning too fast: disabled for 5 minutes
> > > >> * INIT: Id "5" respawning too fast: disabled for 5 minutes
> > > >> * INIT: Id "6" respawning too fast: disabled for 5 minutes
> > > >>
> > > >>
> > > >> Thanks
> > > >>
> > > >> Lars
> > > >>
> > > >> _______________________________________________
> > > >> Xen-users mailing list
> > > >> Xen-users@xxxxxxxxxxxxxxxxxxx
> > > >> http://lists.xensource.com/xen-users
> > > >>
> > >
> > >
> > > _______________________________________________
> > > Xen-users mailing list
> > > Xen-users@xxxxxxxxxxxxxxxxxxx
> > > http://lists.xensource.com/xen-users
> > >

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