So to use DefaultGateway in Bootstrap.ini to set the DeployRoot, I am a little fuzzy on a couple of things. Using a LiteTouch ISO, does the machine booting require a DHCP address or can I statically assign one either by using the Welcome Screen or using the MAC in Bootstrap/Customsettings.ini?
I'm going down this route because I tried to use the LocationServer.xml method to select a DeployRoot, but the issue I ran into is that the UserID and UserPassword are no longer read from Bootstrap.ini if I do this, at least they aren't for me. I am using a UserExitScript to decrypt the password so I'm not storing things in clear-text in the INI files, so not sure if that script no longer get's processed if I don't statically assign a DeployRoot, but my solution is to try and use the DefaultGateway section.