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l2tpV3 on Ubuntu Precise

asked 2013-08-08 10:08:05 -0500

Giuliano gravatar image

updated 2013-08-08 10:18:14 -0500

Jobin gravatar image

I'm trying to implement a first prototype of cloud federation, and I'm using l2tpV3 (via the "ip l2tp" command) to create a L2 ethernet unmanaged tunnel (over L3) between two hosts with public IP addresses. If I use two hosts with Fedora 18 it works like a charm, but when I try to use the command with Ubuntu 12.04 it gives me an error like this: RTNETLINK answers: No such file or directory Error talking to the kernel

After some research it seems that some of the kernel module l2tp_* are missing, but I don't know how to install them.

sudo modprobe l2tp_eth
FATAL: Module l2tp_eth not found.

Update: it seems that the command ip l2tp is disappeared completely from Ubuntu 12.04 :(


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answered 2013-08-15 04:15:49 -0500

Ubuntu does not ship with L2TPv3 enabled in the Linux kernel. And the ip utility is usually built to match specific kernel versions, so it seems their ip utility build doesn't have the l2tp commands.

You can fetch the sources, reconfigure and build them yourself, but it's not ideal. Or use a different distro.

I suggest open a bug on Ubuntu to request that they enable L2TPv3.

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I filed the bug on launchpad. However, it seems that Ubuntu 13.10 is supporting it. (

Giuliano gravatar imageGiuliano ( 2013-10-24 04:12:40 -0500 )edit

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Asked: 2013-08-08 10:08:05 -0500

Seen: 1,184 times

Last updated: Aug 15 '13