Public bug reported: isc-dhclient-4.3.3 does not acquire a new DHCP lease when the Ethernet cable was disconnected and reconnected.
This problem is observed with Ubuntu 16.04 whereas it's working with Ubuntu 14.04 (i.e. isc-dhclient-4.2.4). The Problem: When using Virtualbox 5.0.20 and Vagrant 1.8.1, SSH connection fails after the Ubuntu 16.04 VM was suspended and then started again from the saved state. As of this Virtualbox bug https://www.virtualbox.org/ticket/15412 it appears from Virtualbox 5.0.20 onwards, Virtualbox disconnects the Ethernet cable for 5 seconds in order to trigger a DHCP lease request. Since this is not the case with isc-dhclient-4.3.3 on Ubuntu 16.04 any more, Virtualbox is waiting for network traffic endlessly in order to infer the IP address of the VM, which is in turn required for Virtualbox NAT Forwarding to work. External associated bugs: https://www.virtualbox.org/ticket/15412 https://github.com/mitchellh/vagrant/issues/7306 ** Affects: isc-dhcp (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to isc-dhcp in Ubuntu. https://bugs.launchpad.net/bugs/1582163 Title: DHClient Not Acquiring New Lease After Disconnecting and Reconnecting Ethernet cable Status in isc-dhcp package in Ubuntu: New Bug description: isc-dhclient-4.3.3 does not acquire a new DHCP lease when the Ethernet cable was disconnected and reconnected. This problem is observed with Ubuntu 16.04 whereas it's working with Ubuntu 14.04 (i.e. isc-dhclient-4.2.4). The Problem: When using Virtualbox 5.0.20 and Vagrant 1.8.1, SSH connection fails after the Ubuntu 16.04 VM was suspended and then started again from the saved state. As of this Virtualbox bug https://www.virtualbox.org/ticket/15412 it appears from Virtualbox 5.0.20 onwards, Virtualbox disconnects the Ethernet cable for 5 seconds in order to trigger a DHCP lease request. Since this is not the case with isc-dhclient-4.3.3 on Ubuntu 16.04 any more, Virtualbox is waiting for network traffic endlessly in order to infer the IP address of the VM, which is in turn required for Virtualbox NAT Forwarding to work. External associated bugs: https://www.virtualbox.org/ticket/15412 https://github.com/mitchellh/vagrant/issues/7306 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1582163/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
