get-msolipranges.ps1
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function Get-MSOLIPRanges { <# .SYNOPSIS Finds IP range for given O365 Products to create firewall rules. .DESCRIPTION Finds IP range for given O365 Products to create firewall rules. .PARAMETER IPType Select which IP type you want to find the ranges for. Possible options are IPv4 and IPv6, default is IPv4. .EXAMPLE Get-MSOLIPRanges #> [cmdletbinding()] param( [Parameter(Position = 0)] [ValidateSet('IPv4', 'IPv6')] [string]$IPType = 'IPv4' ) $Office365IPsXml = New-Object System.Xml.XmlDocument $Office365IPsXml.Load("https://support.content.office.net/en-us/static/O365IPAddresses.xml") $updated = $Office365IPsXml.products.updated Write-Output "Last updated: $updated" [array]$Products = $Office365IPsXml.products.product | Sort-Object Name | Out-GridView -PassThru -Title 'Select Product(s)' foreach ($Product in $Products) { $IPRanges = ($Product | Select-Object -ExpandProperty Addresslist | Where-Object {$_.Type -eq $IPType}) | Where-Object {$_.address -ne $null} | Select-Object -ExpandProperty address foreach ($Range in $IPRanges) { $ProductIPRange = New-Object -TypeName PSObject -Property @{ 'Product' = $Product.Name; 'IPRange' = $Range; } Write-Output $ProductIPRange | Select-Object Product, IPRange } } } |