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MacinMan

macrumors 65816
Original poster
Jan 27, 2011
1,379
787
Denham Springs, LA
Hey all, I have a topic that's been discussed before, but most of what I can find is quite a few years old. Also I wasn't sure which category to add this to, so I figured I'd add it to iOS because it can apply to multiple devices.
With this said:

Most of the old articles out there that discuss this topic state that IMGP Snooping can affect the performance of AirPlay, or screen mirroring.
The articles I've read through also say to leave it off unless you need it. My question is, when using devices that are current with the setting both on, or off, I haven't noticed a difference in functionality on a home network. Does the stuff written years back still apply to modern networks, or is it now obsolete info? I'm asking here, because I haven't found any good recent articles with updated info to go by.

The other reason I'm asking is, I recently got an Asus RT-AX86U, and it has a lot more to adjust than cheaper routers, which I was looking for. However it's hard to figure out which settings apply, and which don't. I've narrowed down what settings to use based on spec sheets I've read, and what type of devices are on the network. However, this IGMP and multicast can still be a bit confusing at times as sometimes it seems like it might apply, when it really doesn't.

Thanks for any help.
 

diamond.g

macrumors G4
Mar 20, 2007
11,473
2,698
OBX
Hey all, I have a topic that's been discussed before, but most of what I can find is quite a few years old. Also I wasn't sure which category to add this to, so I figured I'd add it to iOS because it can apply to multiple devices.
With this said:

Most of the old articles out there that discuss this topic state that IMGP Snooping can affect the performance of AirPlay, or screen mirroring.
The articles I've read through also say to leave it off unless you need it. My question is, when using devices that are current with the setting both on, or off, I haven't noticed a difference in functionality on a home network. Does the stuff written years back still apply to modern networks, or is it now obsolete info? I'm asking here, because I haven't found any good recent articles with updated info to go by.

The other reason I'm asking is, I recently got an Asus RT-AX86U, and it has a lot more to adjust than cheaper routers, which I was looking for. However it's hard to figure out which settings apply, and which don't. I've narrowed down what settings to use based on spec sheets I've read, and what type of devices are on the network. However, this IGMP and multicast can still be a bit confusing at times as sometimes it seems like it might apply, when it really doesn't.

Thanks for any help.
On my network turning that on breaks AirPrint to my printers.
 

MacinMan

macrumors 65816
Original poster
Jan 27, 2011
1,379
787
Denham Springs, LA
On my network turning that on breaks AirPrint to my printers.
I have it turned off on both bands now, 2.4Ghz, and 5Ghz. I also disabled the WMM APSD on both bands because according to an Aruba networks test datasheet, these functions aren't supported for the iPhone 12 Pro Max, which is what I have, and it's the most current Apple wireless device I have. I have a 2021 Apple TV 4K as well, but that's not mobile, and I have it connected by Ethernet.
Part of my confusion with the IGMP settings is I'm confusing what's multicast traffic and what's not in my particular setup. For example streaming devices vs IPTV seem to be two different things, and streaming devices don't use multicast as initially thought.

One thing I wanted to ask, does Macrumors have a dedicated networking section? I haven't seen one in the categories when picking one to start a new thread in, so I don't know where a lot of my questions would fit best here.
FYI: here is the article I referenced for tweaking some of my other settings when it comes to what to enable, and what not to: https://www.arubanetworks.com/assets/support/Interoperability-Test-Results-iPhone12ProMax.pdf
 

diamond.g

macrumors G4
Mar 20, 2007
11,473
2,698
OBX
I have it turned off on both bands now, 2.4Ghz, and 5Ghz. I also disabled the WMM APSD on both bands because according to an Aruba networks test datasheet, these functions aren't supported for the iPhone 12 Pro Max, which is what I have, and it's the most current Apple wireless device I have. I have a 2021 Apple TV 4K as well, but that's not mobile, and I have it connected by Ethernet.
Part of my confusion with the IGMP settings is I'm confusing what's multicast traffic and what's not in my particular setup. For example streaming devices vs IPTV seem to be two different things, and streaming devices don't use multicast as initially thought.

One thing I wanted to ask, does Macrumors have a dedicated networking section? I haven't seen one in the categories when picking one to start a new thread in, so I don't know where a lot of my questions would fit best here.
FYI: here is the article I referenced for tweaking some of my other settings when it comes to what to enable, and what not to: https://www.arubanetworks.com/assets/support/Interoperability-Test-Results-iPhone12ProMax.pdf
https://forums.macrumors.com/forums/mac-os-x-server-xserve-and-networking.123/ is the Subfora for Networking related questions.
 
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