message asking access for computer ff02::fb

Ever since I downloaded Yosemite, I have been getting a message from Norton Security that computer ff02::fb wants access - what is this?

iMac (21.5-inch, Late 2012), OS X Yosemite (10.10)

Posted on Nov 8, 2014 8:54 PM

Reply
13 replies

Nov 8, 2014 9:26 PM in response to enfieldoak

It's a common mistake made by Norton on a Mac.

It has been screwing up Macs for years, and as the Mac OS gets more and more refined, the chances of Norton actually finding a file dangerous to a Mac is practically nil.

All it's doing it slowing down your Mac, and actually poses a much more dangerous threat that malware or viruses, most of which attack PCs.


Just my 2 cents.

Jan 3, 2017 12:19 PM in response to enfieldoak

ff02 is the IPv6 multicast scope. The context where I've seen ff02::fb used as a destination is when Apple's AirPort Utility uses MDNS (multicast dns) to locate AirPort Extreme wifi routers on the local network. My client sends a MDNS query to/from UDP port 5353, and the AirPort replies with <broadcasts> to IPv4 224.0.0.251 and to IPv6 ff02::fb.


The only reason I know this is because the AirPort Utility doesn't even try to send the MDNS query if you're connected via Wifi, so Apple proponents repeatedly tell people online to temporarily plug in via Ethernet directly to the Apple device. You know, as if MDNS doesn't work over wifi. It's a bug.

Nov 17, 2014 9:53 AM in response to enfieldoak

Bumping this to see if anyone else has any ideas. I've been having this issue too since the Yosemite update and never had it before.


Going back and forth between thinking this can be related to my Iphone trying to connect to the Mac when they are both on the same WiFi network, but found no real evidence to support this plus my Bluetooth is off (and it needs to be on for them to exchange files, right?).


Thanks Original Poster for putting this issue out there.

Nov 17, 2014 10:08 PM in response to TildeBee

Hi again Bee,


BTW on my first web search on this subject I found another tread mentioning this ff02:fb requesting access issue but in that thread the users where using Little Snitch (no answers there to point me on the right direction to know what is requesting access and to what).


I know Norton is probably overkill (or kill depending on the point of view) on a Mac but I feel better knowing I get to OK what communicates with my computer (would feel better still if I could actually understand what it was).


Norton is far from perfection (maybe the badly resolved IP is a Norton problem, and I can't access this particular modem to see what IP my Iphone is taking when it is on this WiFi) but it makes me feel better to have it on, psychologically soothing tools.


Thanks for your interest and information sharing.


Luisa

Dec 8, 2014 9:03 PM in response to House101

House --


I respect your opinion on this, the same as you have mine.

If you ever decide that your Mac is really having problems, or terribly slow, think of Norton.

We'll always be here to help you get rid of it safely.


Or anything else you need help with ("with which you might need help")

Hope you'll hang around here. Lots of great info here, and it's totally FREE!

😎

This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

message asking access for computer ff02::fb

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.