Packet and this is where the results are mixed, initial testing seemed to show that the two devices would broadcast for the same MAC. Many of our devices have two MAC addresses discovered by hardware inventory and registered against the device. More often though two different devices will broadcast the magic One device will broadcast a magic packet with the target MAC for the device. What I've observed is that on occasion only I've been using a WOL monitor on the VLAN I'm testing on. Another small complexity is that some desktop PCs have a Wi-Fi module.Īn observation of the Wake Up using client notification is a slight inconsistency in how that's effected and that may well be an inconsistency at our end. We have one complexity in that we have a corporate Wi-Fi which shares the same VLAN as the cabled switches/ports. I've added a bit more information just in case someone finds this post, it may be informative. On a completely different note we have been using UI++ as the interface to drive our new device builds and it has proved extremely useful -) We have a range of HP desktop and laptop models/generations with differing power management and WoL BIOS options so there's a need for a matrix and quite The conclusion is that there are BIOS or adapter settings restricting wake up from the S5 power state. WoL with client notification does work when the devices are in the Sleep power state.The new laptop has far more options so experimented with those, no success thus far WoL with client notification does not with a standard desktop and new laptop device when powered off.WoL proxy did work effectively with a test device (that had to be given out so isn't available as a test subject - so BIOS, adapter and any other config was good.Initial findings, we're looking at each of our HP device models to validate The WoL still isn't working as hoped which might explain why subnet directed broadcasts haven't been successful either, although we know there are some network constraints there. I'm using the guide/script from a CCMExec Blog Article The idea is to use that as a program that runs before a a scheduled OS upgrade In the meantime I'm exploring the option of using a script that uses client notification to wake devices in a target collection. Thanks, I will provide feedback to Microsoft. That approach doesn't fit well with most networks teams, is there any solution or is the limitation the way proxying works? There's no limitation or predictability to the numbers it can impersonate other than it's confined to offlineĬlients that it doesn't receive a response from. The limitation appears to be that the web proxy approach allows any client to impersonate the MAC address of any other client on the same subnet. The only downside was that the Cisco port security began blocking numerous ports. With client proxy enabled and using client notification We briefly enabled this in our 1810 ConfigMgr and had the network team monitor the ports, note: port security is enabled and MAC addresses limited to 3 in number to support two IP phone types and a PC. Reading the documentation, 1810 negates the risk of MAC flaps by using the client notification channel, so I presume that's not using the proxy method? I believe the WoL proxy capability arrived in 1806 and was further enhanced in 1810. Our key requirements are to support out of normal working hours OS upgrades, software updates and software deployments. With other ConfigMgr implementations we've used OOB AMT for power management, particularly with large networks and boundaries, this almost certainly poses a challenge We're looking to understand if there's a resolution to the "Mac Flapping" issue.
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