When you run atk6-flood_router26 it is supposed to crash your network, not a bug in the system.
** Changed in: network-manager (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1495453 Title: atk6-flood_router26 wlan0 makes network crash Status in network-manager package in Ubuntu: Invalid Bug description: Install thc-ipv6 and do a sudo atk6-flood_router26 wlan0 (it was wireless network in my case) and the internet connection is lost. You can't access the web you can't ping or do anything on the world wide web. If you stop the operation (Ctrl + C) the state continues, so still nothing, only after manually connecting to the network will it work, and sometimes when trying to reconnect it will give me: Device disconnect failed. I'm using Ubuntu 15.04 64-bit. Neither should my internet access stop, or the network manager behave like that. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1495453/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp