Hi! After upgrading - network-manager (1.0.4-0ubuntu5.1) - all went back to work!
modolo@gsat019046:~⟫ sudo systemctl restart lxc-net modolo@gsat019046:~⟫ sudo systemctl status lxc-net ● lxc-net.service - LXC network bridge setup Loaded: loaded (/lib/systemd/system/lxc-net.service; enabled; vendor preset: enabled) Active: active (exited) since Qua 2015-11-04 19:26:20 BRST; 1s ago Process: 28899 ExecStop=/usr/lib/x86_64-linux-gnu/lxc/lxc-net stop (code=exited, status=0/SUCCESS) Process: 28904 ExecStart=/usr/lib/x86_64-linux-gnu/lxc/lxc-net start (code=exited, status=0/SUCCESS) Main PID: 28904 (code=exited, status=0/SUCCESS) Memory: 380.0K CPU: 9ms CGroup: /system.slice/lxc-net.service └─28952 dnsmasq -u lxc-dnsmasq --strict-order --bind-interfaces --pid-file=/run/lxc/dnsmasq.pid --listen-address 10.0.3.1 --dhcp-range 10... Nov 04 19:26:20 gsat019046 systemd[1]: Starting LXC network bridge setup... Nov 04 19:26:20 gsat019046 dnsmasq[28952]: iniciado, versão 2.75 tamanho de cache 150 Nov 04 19:26:20 gsat019046 dnsmasq[28952]: opções de tempo de compilação: IPv6 GNU-getopt DBus i18n IDN DHCP DHCPv6 no-Lua TFTP conntrack ip…ct inotify Nov 04 19:26:20 gsat019046 dnsmasq-dhcp[28952]: DHCP, IP range 10.0.3.2 -- 10.0.3.254, lease time 1h Nov 04 19:26:20 gsat019046 dnsmasq-dhcp[28952]: DHCP, sockets bound exclusively to interface lxcbr0 Nov 04 19:26:20 gsat019046 dnsmasq[28952]: lendo /etc/resolv.conf Nov 04 19:26:20 gsat019046 dnsmasq[28952]: usando nome de servidor 127.0.1.1#53 Nov 04 19:26:20 gsat019046 dnsmasq[28952]: ler /etc/hosts - 7 endereços Nov 04 19:26:20 gsat019046 systemd[1]: Started LXC network bridge setup. Hint: Some lines were ellipsized, use -l to show in full. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to lxc in Ubuntu. https://bugs.launchpad.net/bugs/1512749 Title: lxcbr0 dissappears on Ubuntu 15.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1512749/+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