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Later versions of Ubuntu include support for Zeroconf, a technique that allows machines on the same subnet to reference each other using local hostnames instead of IP addresses. So you can use this method if your desktop computer and robot are connected to the same router on a home or office network—a common scenario for both hobby and research robots.

You can use zeroconf to communicate between two systems (say, robot and desktop) to ssh into using just their hostnames.

For eg. If you type $hostname and you get something like "my_robot" you can use this instead of the IP address to communicate between the two pcs. Instead of IP address of both PC just using "my_robot.local" will be helpful.