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Recently I have started getting period of poor connections on my home LAN. So, today after my connection was unresponsive for a while once again, I decided to take a look at what was the problem. The log of my router was filled with messages like this one:
PING-FLOODING flooding attack from WAN (ip:xx.yy.zzz.qq) detected.
The ip address was different on each of the messages. I am now wondering what I can do about this. A quick search on google showed me that the best way to combat this is to make i so that my router doesn't respond to pings. However, when I look at the settings, I only see this one:
WAN PING
If you enable this feature, the WAN port of your router will respond to
ping requests from the Internet that are sent to the WAN IP Address.
Unfortunately, it isn't enabled! As such, I feel the problem should not be happening and I don't know what else I can do about it.
Any suggestions?
Every IP was different? If so someone may intentionally be preforming a distributed denial of service attack on you. Kind of odd though since this kind of attack is usually used on public websites or to mask other intrusion activities. Do you have static public IP? – Supercereal – 2012-04-04T15:15:38.377
Are you on a static or dynamic IP - if dynamic change the IP (reboot the router). – BJ292 – 2012-04-04T15:15:51.043
I think my ip is static - it happens to be a pretty common thing here in The Netherlands (at least, that's the impression I am getting). I don't know exactly, though, as I am renting with internet included in a student flat. We are on a load-balanced network and I have an UTP port in my room which I connect to my router. – Jasper – 2012-04-04T15:33:45.707
Contact your local authorities or ISP about the ping flooding (denial of service attack), it may be illegal for someone to do this, so they may look into it for you. Even though your router is set properly to drop ping requests it can still be flooded with them causing it to not respond to other legitimate protocol requests. – Moab – 2012-04-04T19:41:28.310
"A quick search on google showed me that the best way to combat this is to make i so that my router doesn't respond to pings." That will help preserve your outbound bandwidth, but it won't do anything about the consumption of your inbound bandwidth. – David Schwartz – 2013-01-04T01:02:54.700
Can you describe the problem in some kind of detail. "Periods of poor connections" is extremely vague. Are these connections between devices on your LAN? Or only connections to the Internet? Poor how? High latency? Low bandwidth? Or what? – David Schwartz – 2013-04-14T12:02:20.553