Working with pfsense dhcpd.xml in Powershell

dhcpdemo

#Load our template xml to have something to work with
[xml]$out =[xml]@"
<?xml version="1.0"?>
<dhcpd>
	<lan>
		<enable/>
		<range>
			<from>192.168.1.100</from>
			<to>192.168.1.199</to>
		</range>
			
	</lan>
	
</dhcpd>
"@

#Set our dhcpd start range just to show how easy it is
#to work with xml in PS :)
$out.dhcpd.lan.range.from = "192.168.0.0"

#Dummy loop to show the concept
1..10 | foreach {
    #Create a new element for staticmap and save it in $node until we're ready
    #to use it
    $node = $out.CreateElement("staticmap")

    #Add the child nodes we're interesed in, have omitted descr
    $node.AppendChild($out.CreateElement("mac"))
    $node.AppendChild($out.CreateElement("ipaddr"))

    #Set the values we want on our newly created child nodes
    $node.ipaddr = "192.168.0." + $_
    $node.mac = "xx:xx:xx:" + $_

    #We're done, append our new staticmap to the config and repeat
    $out.dhcpd.AppendChild($node)
}

#Save the whole thing as a valid xml document
$out.Save("c:\tmp\dhcpd.xml")