Public/Get-AnyStackMacAddressConflict.ps1
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function Get-AnyStackMacAddressConflict { <# .SYNOPSIS Detects duplicate MAC addresses in the environment. .DESCRIPTION Scans all VM virtual NICs and identifies overlapping MAC addresses. .PARAMETER Server vCenter Server hostname or VIServer object. Uses active connection if omitted. .EXAMPLE PS> Get-AnyStackMacAddressConflict .OUTPUTS PSCustomObject .NOTES Author: The AnyStack Architect Requires: VCF.PowerCLI 9.0+, vSphere 8.0 U3+ #> [CmdletBinding(SupportsShouldProcess=$false)] [OutputType([PSCustomObject])] param( [Parameter(Mandatory=$false, ValueFromPipeline=$true)] [ValidateNotNull()] $Server ) begin { $vi = Get-AnyStackConnection -Server $Server $ErrorActionPreference = 'Stop' } process { try { Write-Verbose "[$($MyInvocation.MyCommand.Name)] Scanning for MAC conflicts on $($vi.Name)" $vms = Invoke-AnyStackWithRetry -ScriptBlock { Get-View -Server $vi -ViewType VirtualMachine -Property Name,Config.Hardware.Device } $macs = @{} foreach ($vm in $vms) { $nics = $vm.Config.Hardware.Device | Where-Object { $_ -is [VMware.Vim.VirtualEthernetCard] } foreach ($nic in $nics) { if (-not $macs.ContainsKey($nic.MacAddress)) { $macs[$nic.MacAddress] = @() } $macs[$nic.MacAddress] += $vm.Name } } foreach ($mac in $macs.Keys) { if ($macs[$mac].Count -gt 1) { [PSCustomObject]@{ PSTypeName = 'AnyStack.MacConflict' Timestamp = (Get-Date) Server = $vi.Name MacAddress = $mac AffectedVMs = $macs[$mac] -join ',' ConflictType = 'Duplicate' } } } } catch { $PSCmdlet.ThrowTerminatingError([System.Management.Automation.ErrorRecord]::new(function Get-AnyStackMacAddressConflict { <# .SYNOPSIS Detects duplicate MAC addresses in the environment. .DESCRIPTION Scans all VM virtual NICs and identifies overlapping MAC addresses. .PARAMETER Server vCenter Server hostname or VIServer object. Uses active connection if omitted. .EXAMPLE PS> Get-AnyStackMacAddressConflict .OUTPUTS PSCustomObject .NOTES Author: The AnyStack Architect Requires: VCF.PowerCLI 9.0+, vSphere 8.0 U3+ #> [CmdletBinding(SupportsShouldProcess=$false)] [OutputType([PSCustomObject])] param( [Parameter(Mandatory=$false, ValueFromPipeline=$true)] [ValidateNotNull()] $Server ) begin { $vi = Get-AnyStackConnection -Server $Server $ErrorActionPreference = 'Stop' } process { try { Write-Verbose "[$($MyInvocation.MyCommand.Name)] Scanning for MAC conflicts on $($vi.Name)" $vms = Invoke-AnyStackWithRetry -ScriptBlock { Get-View -Server $vi -ViewType VirtualMachine -Property Name,Config.Hardware.Device } $macs = @{} foreach ($vm in $vms) { $nics = $vm.Config.Hardware.Device | Where-Object { $_ -is [VMware.Vim.VirtualEthernetCard] } foreach ($nic in $nics) { if (-not $macs.ContainsKey($nic.MacAddress)) { $macs[$nic.MacAddress] = @() } $macs[$nic.MacAddress] += $vm.Name } } foreach ($mac in $macs.Keys) { if ($macs[$mac].Count -gt 1) { [PSCustomObject]@{ PSTypeName = 'AnyStack.MacConflict' Timestamp = (Get-Date) Server = $vi.Name MacAddress = $mac AffectedVMs = $macs[$mac] -join ',' ConflictType = 'Duplicate' } } } } catch { $PSCmdlet.ThrowTerminatingError([System.Management.Automation.ErrorRecord]::new(function Get-AnyStackMacAddressConflict { <# .SYNOPSIS Detects duplicate MAC addresses in the environment. .DESCRIPTION Scans all VM virtual NICs and identifies overlapping MAC addresses. .PARAMETER Server vCenter Server hostname or VIServer object. Uses active connection if omitted. .EXAMPLE PS> Get-AnyStackMacAddressConflict .OUTPUTS PSCustomObject .NOTES Author: The AnyStack Architect Requires: VCF.PowerCLI 9.0+, vSphere 8.0 U3+ #> [CmdletBinding(SupportsShouldProcess=$false)] [OutputType([PSCustomObject])] param( [Parameter(Mandatory=$false, ValueFromPipeline=$true)] [ValidateNotNull()] $Server ) begin { $vi = Get-AnyStackConnection -Server $Server $ErrorActionPreference = 'Stop' } process { try { Write-Verbose "[$($MyInvocation.MyCommand.Name)] Scanning for MAC conflicts on $($vi.Name)" $vms = Invoke-AnyStackWithRetry -ScriptBlock { Get-View -Server $vi -ViewType VirtualMachine -Property Name,Config.Hardware.Device } $macs = @{} foreach ($vm in $vms) { $nics = $vm.Config.Hardware.Device | Where-Object { $_ -is [VMware.Vim.VirtualEthernetCard] } foreach ($nic in $nics) { if (-not $macs.ContainsKey($nic.MacAddress)) { $macs[$nic.MacAddress] = @() } $macs[$nic.MacAddress] += $vm.Name } } foreach ($mac in $macs.Keys) { if ($macs[$mac].Count -gt 1) { [PSCustomObject]@{ PSTypeName = 'AnyStack.MacConflict' Timestamp = (Get-Date) Server = $vi.Name MacAddress = $mac AffectedVMs = $macs[$mac] -join ',' ConflictType = 'Duplicate' } } } } catch { $PSCmdlet.ThrowTerminatingError([System.Management.Automation.ErrorRecord]::new(function Get-AnyStackMacAddressConflict { <# .SYNOPSIS Detects duplicate MAC addresses in the environment. .DESCRIPTION Scans all VM virtual NICs and identifies overlapping MAC addresses. .PARAMETER Server vCenter Server hostname or VIServer object. Uses active connection if omitted. .EXAMPLE PS> Get-AnyStackMacAddressConflict .OUTPUTS PSCustomObject .NOTES Author: The AnyStack Architect Requires: VCF.PowerCLI 9.0+, vSphere 8.0 U3+ #> [CmdletBinding(SupportsShouldProcess=$false)] [OutputType([PSCustomObject])] param( [Parameter(Mandatory=$false, ValueFromPipeline=$true)] [ValidateNotNull()] $Server ) begin { $vi = Get-AnyStackConnection -Server $Server $ErrorActionPreference = 'Stop' } process { try { Write-Verbose "[$($MyInvocation.MyCommand.Name)] Scanning for MAC conflicts on $($vi.Name)" $vms = Invoke-AnyStackWithRetry -ScriptBlock { Get-View -Server $vi -ViewType VirtualMachine -Property Name,Config.Hardware.Device } $macs = @{} foreach ($vm in $vms) { $nics = $vm.Config.Hardware.Device | Where-Object { $_ -is [VMware.Vim.VirtualEthernetCard] } foreach ($nic in $nics) { if (-not $macs.ContainsKey($nic.MacAddress)) { $macs[$nic.MacAddress] = @() } $macs[$nic.MacAddress] += $vm.Name } } foreach ($mac in $macs.Keys) { if ($macs[$mac].Count -gt 1) { [PSCustomObject]@{ PSTypeName = 'AnyStack.MacConflict' Timestamp = (Get-Date) Server = $vi.Name MacAddress = $mac AffectedVMs = $macs[$mac] -join ',' ConflictType = 'Duplicate' } } } } catch { $PSCmdlet.ThrowTerminatingError([System.Management.Automation.ErrorRecord]::new($_, 'UnexpectedError', [System.Management.Automation.ErrorCategory]::NotSpecified, $null)) } } } .Exception, 'UnexpectedError', [System.Management.Automation.ErrorCategory]::NotSpecified, $null)) } } } .Exception, 'UnexpectedError', [System.Management.Automation.ErrorCategory]::NotSpecified, $null)) } } } .Exception, 'UnexpectedError', [System.Management.Automation.ErrorCategory]::NotSpecified, $null)) } } } |