[lxc-users] lxc - DSL pppoe into container - Possible? [SOLVED]

[Jonathan Grégoire]

> > Hi all,
> >
> > My home router/firewall (ubuntu + iptables) is currently running in KVM and
> > I would like to run it into a container to reduce the ressource
> > footprint.... but I'm having a problem to make my DSL PPPoE working...
> >
> > The containrt is unable to use the kernel modules loaded into the host.
> >
> > ==============================================
> >
> >
> > My firewall container when trying to bring up the PPPoE:
> >
> > root at myfirewall:~# pon dsl-provider
> > Plugin rp-pppoe.so loaded.
> > Couldn't open the /dev/ppp device: Operation not permitted
>
> Did you add the /dev/ppp device to the container's devices whitelist?
You are right, I didn't add the /dec/ppp into the devices whitelist.
For thoses that might have the same trouble here is the line that I
added to my container configuration file
(/var/lib/lxc/myfirewall/config) to make it work:

lxc.cgroup.devices.allow = c 108:0 rwm # /dev/ppp

I took the "108:0" value from:

root at vmhost01:~# ls -ls /dev/ppp
0 crw------- 1 root root 108, 0 Jun  8 21:19 /dev/ppp


The ppp session is now established:

Jun 10 22:44:42 myfirewall pppd[2165]: Plugin rp-pppoe.so loaded.
Jun 10 22:44:42 myfirewall pppd[2167]: pppd 2.4.5 started by ubuntu, uid 0
Jun 10 22:44:42 myfirewall pppd[2167]: PPP session is 11903
Jun 10 22:44:42 myfirewall pppd[2167]: Connected to 00:90:FF:FF:FF:F4
via interface vlan2
Jun 10 22:44:42 myfirewall pppd[2167]: Using interface ppp0
Jun 10 22:44:42 myfirewall pppd[2167]: Connect: ppp0 <--> vlan2
Jun 10 22:44:43 myfirewall pppd[2167]: PAP authentication succeeded

Thank you for the hint Serge!

>
> > modprobe: ERROR: ../libkmod/libkmod.c:556 kmod_search_moddep() could not
> > open moddep file '/lib/modules/3.13.0-53-generic/modules.dep.bin'
> > Linux kernel does not support PPPoE -- are you running 2.4.x?
> >
> >
> > root at myfirewall:~# lsmod | grep ppp
> > pppoe                  17873  0
> > pppox                  13342  1 pppoe
> >
> > ==============================================
> >
> > Kernel modules are loaded into the host (my host is running Ubuntu 14.04.2
> > LTS)
> >
> > jonathan at vmhost01:~$ sudo lsmod | grep ppp
> > pppoe                  17873  0
> > pppox                  13342  1 pppoe
> >
> > ==============================================
> >
> > I thought that a container would be able to use the kernel modules that are
> > loaded into the host. I probably miss something....
> >
> >
> > Thanks!
>
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> > http://lists.linuxcontainers.org/listinfo/lxc-users
>