we know that new version of the Ubuntu fully support the Netplan. So I want to ask how can I use this feature with ucarp protocol (application). How can i integrate the Netplan with ucarp.If there isn't any solution, what are the alternative ways to use this feature. Thanks for your attention.i'm looking forward to your reply.
The ucarp package includes integration for ifupdown but not for netplan. It is on the list of packages that require updating, described at https://bugs.launchpad.net/ubuntu/+source/ucarp/+bug/1718227.
If you are using the networkd backend, you can implement the hooks yourself locally as described in
networkd-dispatcher(8). Otherwise, you always have the option of falling back to using ifupdown instead of netplan to configure the network interface that you need to run ucarp on.