iPhone 6S Sends DoS to NetGear

[TheGoz]

I found evidence that my iPhone 6S is the cause of the DoS attacks on my NetGear C3000-100NAS. The iPhone connects and then instead of a local 192.168.0.x address, it gets a strange WAN address and the attacks like the ones below begin immediately:

[DoS attack: Ping Of Death] from 7.4.241.224, port 0	1	Sat Oct 01 20:35:21 2016	221.135.76.83:0	7.4.241.224:0
[DoS attack: Teardrop or derivative] from 7.4.241.224, port 0	1	Sat Oct 01 20:35:21 2016	221.135.76.83:0	7.4.241.224:0
[DoS attack: Ping Of Death] from 7.4.241.224, port 0	1	Sat Oct 01 20:35:21 2016	221.135.76.83:0	7.4.241.224:0

I've been able to minimize the impact of this by taking these steps:

• Log into the Netgear admin before turning on wifi on the iPhone
• Monitor the iPhone as it connects to the Netgear. If it picks up a WAN address, immediately turn off wifi on the iPhone.
• If it picks up a local address, it's OK.

This is not a long term fix. The following attempts have not worked:

• There's no firmware update for the iPhone to date
• There's no firmware update to the Netgear to date
• Factory resetting the iPhone was a 100% waste of time in this case
• Giving the iPhone a reserved IP address on the Netgear was a 100% waste of time
• Reporting it to ComCast was an absolute complete 100% waste of LOTS OF TIME

We have to group think this one, folks, so contribute. Thanks.

[dezmodious]

I have run into this issue as well. I just purchase the c7000 today and withing minutes of setting it up (yes I changed the default settings and passwords) and browsing around the admin settings I noticed that my log was showing DoS attacks: Ping of Death, Teardrop...etc. All were coming from ip address 78.197.43.0 port 0 (shows France when googled). When I checked connected devices I had one device with that particular IP assignment. I determined it was my Iphone 6S. I switched it over to the 5G network and that solved it for that device. I checked back a few minutes later and I now have the same ip address showing in the connected devices but it is no longer my iphone, it's just an undefined device (listed as ---). Does not appear to be affecting speed or connectivity at the moment

For reference, Time Warner customer in Raleigh, NC