PowerShell unión-objeto
Install-Module 'Join-Object'
Join-Object -Left $leases -Right $reservations -LeftJoinProperty 'IP' -RightJoinProperty 'IP'
Super Seal
Install-Module 'Join-Object'
Join-Object -Left $leases -Right $reservations -LeftJoinProperty 'IP' -RightJoinProperty 'IP'