lost Network message:ICMPv6 Mulitcast Listener Report

[JHONN_WILLIAM_B]

I have my network switches extreme, during the day I have lost network, making a sniffer with wireshark I see many messages ICMPv6 (see attached), that can cause this?

regards

[Andre_K_]

I had this problem once with a specific series of DELL workstations. They did this when going into power save mode. The model in question was DELL Optiplex 780 iirc. If you have those machines in your network try updating them to the latest BIOS and NIC drivers.

[BrandonC]

Yes, this is a known issue with some Intel NICs that leads to flooding MLD traffic when the NIC is in power save mode. There should be a driver update available to remedy this issue. More information is on Intel's support forum, linked below.

https://communities.intel.com/thread/48051

-Brandon

[Jason_Parker]

You can set a basic policy to block this traffic if you are not using IPv6.

set policy profile 100 name BlockIPV6

set policy rule 100 ether 0x86dd mask 16 drop

set policy port *.*.* 100

*.*.* is all ports

BTW, you will get a error that you cannot set this on a LAG ports
It is FAD

[Stephane_Grosj1]

Ethertype 0x86dd means IPv6. The length is only for low value of the ethertype (below 1500 decimal).