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GRE/IPIP tunnel support on VE [message #6672]

Thu, 21 September 2006 06:59

magicboiz
Messages: 6
Registered: September 2006

Junior Member

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.

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Re: GRE/IPIP tunnel support on VE [message #6674 is a reply to message #6672]

Thu, 21 September 2006 07:17

Vasily Tarasov
Messages: 1345
Registered: January 2006

Senior Member

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.

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Re: GRE/IPIP tunnel support on VE [message #6685 is a reply to message #6674]

Thu, 21 September 2006 10:13

magicboiz
Messages: 6
Registered: September 2006

Junior Member

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!

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Re: GRE/IPIP tunnel support on VE [message #6686 is a reply to message #6685]

Thu, 21 September 2006 10:30

Vasily Tarasov
Messages: 1345
Registered: January 2006

Senior Member

Quote:

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

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!

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Re: GRE/IPIP tunnel support on VE [message #6709 is a reply to message #6686]

Thu, 21 September 2006 15:16

magicboiz
Messages: 6
Registered: September 2006

Junior Member

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.....

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Re: GRE/IPIP tunnel support on VE [message #6755 is a reply to message #6709]

Fri, 22 September 2006 05:27

Vasily Tarasov
Messages: 1345
Registered: January 2006

Senior Member

Hello,

I suppose you should use

vzctl set 100 --devnodes tunel0:rw

And then do everything like usual inside VE.

HTH,
vass.

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Re: GRE/IPIP tunnel support on VE [message #6758 is a reply to message #6755]

Fri, 22 September 2006 07:13

magicboiz
Messages: 6
Registered: September 2006

Junior Member

No luck

[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.

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Re: GRE/IPIP tunnel support on VE [message #6759 is a reply to message #6758]

Fri, 22 September 2006 07:18

Vasily Tarasov
Messages: 1345
Registered: January 2006

Senior Member

You forgot about ':'!
--devnodes tunel0:rw

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Re: GRE/IPIP tunnel support on VE [message #6771 is a reply to message #6759]

Fri, 22 September 2006 09:42

magicboiz
Messages: 6
Registered: September 2006

Junior Member

[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

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Re: GRE/IPIP tunnel support on VE [message #6773 is a reply to message #6771]

Fri, 22 September 2006 09:58

Vasily Tarasov
Messages: 1345
Registered: January 2006

Senior Member

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

magicboiz
Messages: 6
Registered: September 2006

Junior Member

No tun* device.....

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

Regards

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Re: GRE/IPIP tunnel support on VE [message #10259 is a reply to message #6672]

Tue, 13 February 2007 23:55

MaksymDolgykh
Messages: 4
Registered: February 2007
Location: Ukraine

Junior Member

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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Re: GRE/IPIP tunnel support on VE [message #53322 is a reply to message #10259]

Wed, 30 May 2018 02:44

vinesh
Messages: 2
Registered: May 2018

Junior Member

Hi,

MaximDolgikh, please let me know Razz

.

How to set interface up in HW before move it into VE?

Thanks,

Vinesh

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Re: GRE/IPIP tunnel support on VE [message #53324 is a reply to message #53322]

Wed, 30 May 2018 10:12

MaksymDolgykh
Messages: 4
Registered: February 2007
Location: Ukraine

Junior Member

Hello,

Actually, I have mentioned all commands in the previous message Smile

Just make sure the interface is in UP state on the HW

ip tunnel add tunel0 mode gre local 10.1.2.3 remote 10.2.3.4
ip link set up dev tunel0
vzctl set 100 --netdev_add tunel0 --save

I didn't try this now, but 11 years ago it worked, so I'm going to assume it still works.

Thank you.

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