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Forum Discussion
NightHawk C7800 DoS Attacks
Having frequent DoS Attacks last couple months: SYNC FLOOD or UDP SCAN or ECHO CHAR GEN Netgear's brochure for this NightHawk C7800 says: SECURITY Denial-of-service (DoS) attack prevention...
Have you tried to remove all mobile devices from the network it could be happening from a app on a device. You may want to connect a device one at a time and check if these issues are happening as soon as a certain device joins the network again.
DarrenM
I finally figured out what's been happening (since January!) > A member of my household received an XBOX for Xmas and since my Nighthawk Modem/Router/Wifi comes with UPnP (Universal Plug and Play) enabled, he was able to "play". But apparently using XBOX LIVE (Thanks Microsoft) broadcasts MY Internet IP Address so let the DoS Attacks (aka DDoS) Attacks begin.
"Have you ever experienced a suspiciously well-timed connection drop while playing an online game? Maybe you were just about to round out that royal flush or take down the mid-lane tier 2 tower, when suddenly your ping spiked and it was game over. If that sounds familiar, there’s a good chance that the game that you’re playing was the target of a denial of service (DoS) attack."
What to do? So far I've read numerous articles and some suggested:
1) Disable UPnP and use port forwarding > So I setup Static IP for XBOX and forwarded (8) ports to it. Then the attacks were isolated -- all came in on port 80. So, I disabled port 80. Then "whack a mole" set in....attacks came in on Port 53 then 500, then 3544. Finally disabled ALL the (8) ports. Did that stop the attacks? Not on your life (or mine) !! Recall that once that XBOX connected to the Internet, MY IP address has been "out there". So,
after I disabled all ports at 6pm, 1st attack 6:15pm, then 6:51, then 7:32 then 8:56pm.
Attacks
(2) from RUSSIAN FEDERATION MOSCOW, MOSKVA
(1) from SEYCHELLES VICTORIA, ENGLISH RIVER
(1) from HURRICANE ELECTRIC – DENVER, COLORADO
Good new....haven't had any attacks since those 4.
2. Get a VPN -- but that could causing timing issues with game playing.
3. Use Blacklist to stop specific IP Addresses from accessing my computer.
Apparently Netgear has chosen not to provide this feature, at least in my Nighthawk C7800. My last 4 attacks came from IP addresses identifed in the past so it might be helpful to "blacklist" them. (I know the IP addresses may be "spoofed" (aka fake) but I've run out of options.
Will now leave my internet with PUnP disabled and no ports forwarded for the XBOX.
PS: I tried getting Netgear support BUT my support expired so I was advised to use "The Community" .... I'm resting for now, but plan on checking other "non-Netgear" equipment to see if others offer "blacklisting" as an option !!