Figure 5

The Mysterious Microsoft DHCP Option ID 81

Recently I worked on a project where I needed to create a PowerShell script to automate the creation of numerous Microsoft DHCP servers and all their scopes, scope options, reservations, all settings. The original DHCP servers were in an old Active Directory domain, and a new AD Forest was created with a different networking scheme. I used the output from the DHCP documentation script to gather all the info needed, but there was one scope option that had me stumped.