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



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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