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GRE/IPIP tunnel support on VE [message #6672] Thu, 21 September 2006 06:59 Go to next message
magicboiz is currently offline  magicboiz
Messages: 6
Registered: September 2006
Junior Member
From: *alhsys.es
Hello all

I'm trying to add an ip tunnel inside a VE, but with no luck. I'd try two ways:

1.- Inside the VE, I did run:
-bash-3.00# ip tunnel add tunel0 mode gre local 10.1.2.3 remote 10.2.3.4
ioctl: No such device

2.- From the HW node, I did create the tunnel interface, and then, trying to add it to the VE:

[root@hwnode /]#ip tunnel add tunel0 mode gre local 10.1.2.3 remote 10.2.3.4
[root@hwnode /]# vzctl set 100 --netdev_add tunel0 --save
Bad parameter for --netdev_add: tunel0


Is possible to use IP tunnels (GRE/IPIP) in OpenVZ enviroment?

HW machine running CentOS 4.4 with kernel 2.6.9-023stab016

thx in advance.
Javier.
Re: GRE/IPIP tunnel support on VE [message #6674 is a reply to message #6672] Thu, 21 September 2006 07:17 Go to previous messageGo to next message
Vasily Tarasov is currently offline  Vasily Tarasov
Messages: 1345
Registered: January 2006
Senior Member
From: *sw.ru
Check that gre/ipip kernel modules are loaded in HN.
You also should add r/w device permissions for tunel device for VE using --devnode command of vzctl and then use device inside VE.


HTH,
vass.
Re: GRE/IPIP tunnel support on VE [message #6685 is a reply to message #6674] Thu, 21 September 2006 10:13 Go to previous messageGo to next message
magicboiz is currently offline  magicboiz
Messages: 6
Registered: September 2006
Junior Member
From: *alhsys.es
Hello,

the modules are loaded:

[root@icmnms ~]# lsmod | grep gre
ip_gre 10912 0
[root@icmnms ~]#


How can I see what device is under /dev, any network interface? /dev/tunel0 does not exist..... /dev/eth0 doesn't to....

Thx!
Re: GRE/IPIP tunnel support on VE [message #6686 is a reply to message #6685] Thu, 21 September 2006 10:30 Go to previous messageGo to next message
Vasily Tarasov is currently offline  Vasily Tarasov
Messages: 1345
Registered: January 2006
Senior Member
From: *sw.ru
Quote:

How can I see what device is under /dev, any network interface? /dev/tunel0 does not exist..... /dev/eth0 doesn't to....


Rolling Eyes Sorry I don't quite get your question...
To see devices under /dev you can do ls Smile
Are we specing about /dev inside VE or on HN?
If so, why eth0 should be there?

So, please, ask providing more details!

Thanks!
Re: GRE/IPIP tunnel support on VE [message #6709 is a reply to message #6686] Thu, 21 September 2006 15:16 Go to previous messageGo to next message
magicboiz is currently offline  magicboiz
Messages: 6
Registered: September 2006
Junior Member
From: *alhsys.es
first of all, thanks for your help vass

I need to have a tunnel gre interface inside my VE. I cannot create it inside the VE using the tipicall way (ip tunnel add.... comand).

I also did try to pass it to the VE (vzctl set 100 --netdev_add tunel0 --save.... command), but it didn't work too.

Now, you suggest me to make the interface RW... but i don't know how.
Can you tell me the command that you guess I should write? Something like "vzctl set 100 --devnode tunel0 rw"??

What a nightmare..... Rolling Eyes

Thx

PD: sorry my english.....
Re: GRE/IPIP tunnel support on VE [message #6755 is a reply to message #6709] Fri, 22 September 2006 05:27 Go to previous messageGo to next message
Vasily Tarasov is currently offline  Vasily Tarasov
Messages: 1345
Registered: January 2006
Senior Member
From: *sw.ru
Hello,

I suppose you should use

vzctl set 100 --devnodes tunel0:rw


And then do everything like usual inside VE.

HTH,
vass.
Re: GRE/IPIP tunnel support on VE [message #6758 is a reply to message #6755] Fri, 22 September 2006 07:13 Go to previous messageGo to next message
magicboiz is currently offline  magicboiz
Messages: 6
Registered: September 2006
Junior Member
From: *44.217.87.dynamic.jazztel.es
No luck Sad

[root@HWNODE ~]# ifconfig tunel0
tunel0 Link encap:UNSPEC HWaddr 0A-A8-20-65-00-00-00-00-00-00-00-00-00-00-00-00
POINTOPOINT NOARP MTU:1476 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)

[root@HWNODE ~]# ip tunnel show
gre0: gre/ip remote any local any ttl inherit nopmtudisc
tunel0: gre/ip remote 10.168.32.250 local 10.168.32.101 dev eth1 ttl inherit


[root@HWNODE ~]# vzctl set 100 --devnodes tunel0 rw
Bad parameter for --devnodes: tunel0
[root@HWNODE ~]#


I'm afraid that Openvz does not support this kind of network interfaces inside a VE.....

Regards.

Re: GRE/IPIP tunnel support on VE [message #6759 is a reply to message #6758] Fri, 22 September 2006 07:18 Go to previous messageGo to next message
Vasily Tarasov is currently offline  Vasily Tarasov
Messages: 1345
Registered: January 2006
Senior Member
From: *sw.ru
You forgot about ':'!
--devnodes tunel0:rw
Re: GRE/IPIP tunnel support on VE [message #6771 is a reply to message #6759] Fri, 22 September 2006 09:42 Go to previous messageGo to next message
magicboiz is currently offline  magicboiz
Messages: 6
Registered: September 2006
Junior Member
From: *44.217.87.dynamic.jazztel.es
Sad

[root@HWNODE ~]# vzctl set 100 --devnodes tunel0:rw
Incorrect device name /dev/tunel0: No such file or directory
Bad parameter for --devnodes: tunel0:rw
[root@HWNODE ~]#


Sad
Re: GRE/IPIP tunnel support on VE [message #6773 is a reply to message #6771] Fri, 22 September 2006 09:58 Go to previous messageGo to next message
Vasily Tarasov is currently offline  Vasily Tarasov
Messages: 1345
Registered: January 2006
Senior Member
From: *sw.ru
It means, that file
/dev/tunel0 doesn't exist.
Maybe tunnel0? Smile
Please, provide `ls /dev/tun*` output (on HN)...

[Updated on: Fri, 22 September 2006 10:00]

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Re: GRE/IPIP tunnel support on VE [message #6856 is a reply to message #6773] Mon, 25 September 2006 14:49 Go to previous messageGo to next message
magicboiz is currently offline  magicboiz
Messages: 6
Registered: September 2006
Junior Member
From: *alhsys.es
No tun* device.....

[root@HWNODE ~]# ls -l /dev/tun*
ls: /dev/tun*: No such file or directory
[root@HWNODE ~]#

Regards
Re: GRE/IPIP tunnel support on VE [message #10259 is a reply to message #6672] Tue, 13 February 2007 23:55 Go to previous message
MaximDolgikh is currently offline  MaximDolgikh
Messages: 3
Registered: February 2007
Location: Ukraine
Junior Member
From: *org.ua
You need set interface up in HW before move it into VE:
ip tunnel add tunel0 mode gre local 10.1.2.3 remote 10.2.3.4
ip link set up dev tunel0

Now you can move tunnel interface into VE:
vzctl set 100 --netdev_add tunel0 --save

This work for me on debian-3.1 with kernel 2.6.8-022stab078.14
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