Vladimír Mach

Configure DHCP Policies to support BIOS & UEFI boot for SCCM

This script will generate required DHCP configuration to support of Legacy BIOS and UEFI PXE boot at the same time for SCCM.

# -------------------- Configuration ------------------------------
$DhcpServer = "localhost"
$ScopeId = "10.0.0.0"
$PxeServer = "sccm.contoso.com"

# ----------------------------------------------------------------- 
$vendorClasses = @(
    @{
        Name = "PXEClient UEFI (x64)"
        Data = "PXEClient:Arch:00007"
        BootImage = "smsboot\x64\wdsmgfw.efi"
    },
    @{
        Name = "PXEClient UEFI (x86)"
        Data = "PXEClient:Arch:00006"
        BootImage = "smsboot\x86\wdsmgfw.efi"
    },
    @{
        Name = "PXEClient BIOS (x86 & x64)"
        Data = "PXEClient:Arch:00000"
        BootImage = "smsboot\x64\wdsnbp.com"
    }
)

# Create Vendor Prefix classes
$vendorClasses | ForEach-Object { 
    $parameters = @{
        Name = $_.Name
        Description = $_.Data
        Data = $_.Data
        Type = "Vendor"
    }
    Add-DhcpServerv4Class -ComputerName $DhcpServer @parameters 
}

# Create Scope policies
$vendorClasses | ForEach-Object {
    Add-DhcpServerv4Policy -ComputerName $DhcpServer `
                           -ScopeId $ScopeId `
                           -Name $_.Name `
                           -Condition OR `
                           -VendorClass EQ,"$($_.Name)*"
}

# Set policy options
$vendorClasses | ForEach-Object {
    Set-DhcpServerv4OptionValue -ComputerName $DhcpServer `
                                -ScopeId $ScopeId `
                                -PolicyName $_.Name `
                                -OptionId 66 `
                                -Value $PxeServer
    Set-DhcpServerv4OptionValue -ComputerName $DhcpServer `
                                -ScopeId $ScopeId `
                                -PolicyName $_.Name `
                                -OptionId 67 `
                                -Value $_.BootImage
}

# Remove default scope options (66, 67)
66, 67 | ForEach-Object { 
    Remove-DhcpServerv4OptionValue -ComputerName $DhcpServer `
                                   -ScopeId $ScopeId `
                                   -OptionId $_ `
                                   -Confirm:$false `
                                   -ErrorAction SilentlyContinue 
}