PowerCLI Script to Gather VM Guest Network Information Using get-view

Just can't get this to work right.  Name, IP, MacAddress, VlanID, and Network Adapter are fine but Gateway, SubnetMask, and DNS are all blanks. Any help would be appreciated.

Get-View -ViewType VirtualMachine -Filter @{'Runtime.PowerState'='poweredOn'} |

Select Name,

@{N='IPAddress';E={$_.Guest.ipAddress}},

@{N='Gateway';E={$nicInfo = Get-VMGuestNetworkInterface -VM $_ [string]::Join(',',($nicInfo | Select -ExpandProperty DefaultGateway))}},

@{N='SubnetMask';E={[string]::Join(‘,’,($subnetmask))}},

@{N='DNS';E={[string]::Join(',',($vm.ExtensionData.Guest.IpStack.DnsConfig.IpAddress))}},

@{N='MacAddress';E={($_.Config.Hardware.Device | where{$_ -is [VMware.Vim.VirtualEthernetCard]}).MacAddress -join '|'}},  

@{N='VlanId';E={$folder = Get-Folder VM

        $folderView = Get-View $folder -Property "[VirtualMachine]ChildEntity.Network.*"

        $folderView.LinkedView.ChildEntity[0].LinkedView.Network | Select-Object -ExpandProperty Name}},

@{N='Network Adapter';E={$_.Config.Hardware.Device  |  Where {$_ -is [VMware.Vim.VirtualEthernetCard]} | ForEach {$_.GetType().Name.Replace('Virtual','')}}} | Out-GridView