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 :(

reference:

• http://www.prol2tp.com/documentation.html?page=l2tpv3.html#UnmanagedL2TPv3L2tunnelsforLinux