Your DHCP/SLAAC RA tells clients "here is a list of search domains, when you attempt to query a bare name, also look for the name plus any suffixes listed in the search domain list". So on a system with "home.arpa" in the search domains, you can do something like 'ping myhost' and your system should attempt to resolve 'myhost.home.arpa'.
https://en.wikipedia.org/wiki/Search_domain
Your DHCP/SLAAC RA tells clients "here is a list of search domains, when you attempt to query a bare name, also look for the name plus any suffixes listed in the search domain list". So on a system with "home.arpa" in the search domains, you can do something like 'ping myhost' and your system should attempt to resolve 'myhost.home.arpa'.
Thanks, appreciated. Forgot that wiki is good at this (and TV series ;-)