I SOLVED Many thanks to all. Using your input I concluded that the issue was not in LXC or the Kernel. In fact. the colo changed the subnets without telling me. Yours Federico -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.linuxcontainers.org/pipermail/lxc-users/attachments/20161109/d34d7856/attachment.html>