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Network Link Speed

The root\wmi Namespace contains a class that just returns the link speed of your network card. Quick and easy to use function. function get-linkspeed { param ( [string] $computer = "." ) Get-WmiObject -Namespace root\wmi -Class MSNdis_LinkSpeed...

Published Wed, Aug 08 2011 3:13 PM by Richard Siddaway's Blog

Filed under: PowerShell and WMI, Networking

Ping a subnet

I recently needed to find which IP addresses were active on a subnet to track down a printer. Quickest way was to ping them. function ping-subnet { param ( [ parameter ( Mandatory = $true ) ] [ ValidatePattern ( "\b\d{1,3}\.\d{1,3}\.\d{1,3...

Published Mon, Aug 08 2011 2:02 PM by Richard Siddaway's Blog

Filed under: PowerShell and WMI, Networking

Ethernet Errors

While we are looking at the MSNdis_Ethernet* classes we should consider these three that pick up potential problems MSNdis_EthernetReceiveErrorAlignment MSNdis_EthernetOneTransmitCollision MSNdis_EthernetMoreTransmitCollisions If all is well we...

Published Sun, Aug 08 2011 11:56 AM by Richard Siddaway's Blog

Filed under: PowerShell and WMI, Networking

Testing MAC address changes

My recent post on using MSNdis_EthernetCurrentAddress to get the MAC address may have had you saying so what because I can do this Get-WmiObject -Class Win32_NetworkAdapter -ComputerName "." | select Name, MACAddress However, there...

Published Fri, Aug 08 2011 2:09 PM by Richard Siddaway's Blog

Filed under: PowerShell and WMI, Networking

Find the MAC address

One thing that has bugged me for years is having to use the /all parameter with ipconfig to get the MAC address. It also doesn’t work on remote machines. bah humbug. The MSNdis_EthernetCurrentAddress class in the root\wmi namespace offers a quicker way...

Published Thu, Aug 08 2011 1:59 PM by Richard Siddaway's Blog

Filed under: PowerShell and WMI, Networking

Network Adapter speed and duplex

One thing that can cause problems on the network is the duplex setting on the network adapter. If this doesn’t match the switch port then at best you will get performance issues and at worst no connectivity. The speed of the connection can be obtained...

Published Fri, Jul 07 2011 4:07 PM by Richard Siddaway's Blog

Filed under: PowerShell and WMI, Networking

Linking the network card to the Registry settings

An interesting problem from the forum. Get the IP enabled network adapters and read the associated registry keys to get the value of the NetLuidIndex. $HKLM = 2147483650 $reg = [wmiclass] '\\.\root\default:StdRegprov' $keyroot = "SYSTEM\CurrentControlSet...

Published Sat, Jul 07 2011 7:46 AM by Richard Siddaway's Blog

Filed under: PowerShell and WMI, Networking

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Network Link Speed

Ping a subnet

Ethernet Errors

Testing MAC address changes

Find the MAC address

Network Adapter speed and duplex

Linking the network card to the Registry settings