DoS ICMP flood on C6300

Question

I have received numerous DoS ICMP Flood attacks through my C6300 Cable Modem each day that cause either slowness or cause my router to restart. I have tried changing passwords, SSID Name, factory resets. Comcast has suggested that to fix the problem I would need to replace the modem. The attacks are coming from 168.1.128.51, 192.172.226.137, 27.151.115.81, 46.234.125.89, 185.94.111.1, 120.34.213.64, 104.207.145.43, 129.82.138.44, 195.251.255.69, 203.178.148.19, 206.117.25.90 and 36.85.204.239.&nbsp; Those are the IP's I've pulled from the logs in a day and a half of looking.&nbsp; My firmware version is V2.01.18 and the option under the Advanced tab, under the setup menu item labeled "Disable Port Scan and DoS Protection" is unchecked.&nbsp; Im not sure why, with this option enabled I would still be prey to these.&nbsp; Is there a way to secure the modem?

DarrenM · Answer

Hello KTaltos

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I would try to check dos protection see if those dos attacks stop.

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DarrenM

maresco · Answer

same problem.. why Netgear is not taking care of their products ??&nbsp;what you mean by "check dos protection" ?

maresco · Answer

can we black list those ip that attack us??? any way to block them on the c63000 ?&nbsp;Please any halp from Netgear !!!!!!!!!!!!!!!!!

DarrenM · Answer

The router does not have that feature as it has a firewall that deals with the inbound traffic. The NAT filtering provides secured firewall that will protect your PCs from attacks from the Internet or even access from outside your network

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DarrenM

TylorBlake · Answer

I have the same exact issue with the same ip addresses. Did you ever fix this and how if so?

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DoS ICMP flood on C6300

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