I'm pretty sure this is a bug in BackupPC, since: sauer@pyro:~$ lsmod | grep -c ipv6 0
-- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to backuppc in Ubuntu. https://bugs.launchpad.net/bugs/782890 Title: no ping response on all hosts after upgrade To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/backuppc/+bug/782890/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs