Edit the DHCP lease for a VNET

After adding, changing, or removing a static binding from an instance that already has a DHCP IP, the DHCP server and client will still have the old lease cached, so additional steps are required.

Follow these steps if you modify the DHCP service for a VNET. After changing a VNET's DHCP settings, such as adding, changing, or removing a static binding from an instance that already has a DHCP IP, follow these steps.

1. Open a console to the NFV instance.
2. Run: vi /var/lib/dnsmasq/dnsmasq.leases and type i to edit the file.
3. Remove the line containing the old IP of the instance whose static binding is being changed. Press ESC and type :wq to save the changes.
4. Run: systemctl restart dnsmasq
5. Open a console to the instance whose static binding is being changed.

   • For Linux instances:

     • Run: rm /var/lib/NetworkManager/dhclient-*-<Interface Name>.lease to remove the old DHCP lease file.

     • Then run: nmcli con up <Interface Name> to bring up the interface.

   • For Windows instances:

     • Open Network and Sharing Center and click Change adapter settings.

     • Right-click the network adapter and select Disable this network device.

     • Right-click the network adapter and select Enable this network device.

Note

These changes will not take effect on the clients until they renew their DHCP leases.