If these events are slowing down your router, that may be because it is using up processor time as it writes the events to your logs. Anything that uses processor power – event logging, QoS management, traffic metering – may cause slowdowns. Disable logging of DoS attacks and see if that reduces the problem. This does not prevent the router from protecting you from the outside world.
@michaelkenward wrote: Sounds messy. Are you running "Double NAT" because you like things that way? Heaven only knows what the modem is also doing.
@michaelkenward Thanks for your reply, I have read thru all other DOS posts beforehand but trying to be certain that's all.
Anyway my ISP's modem is only assigning 1 dynamic IP to me so I doubt that I can bridge it, hence have the R7000 that sit right next to it is doing the first NAT, 192.168.1.0, mainly serving my parents devices thru wifi, further on a 50m long Cat5 cable is connecting from R7000 LAN port#1 to a RAX20 which is situateed on the other (disjointed) end of the house, the RAX20 is doing the 2nd level of NAT (network: 10.0.0.1) so yes, it's a double NAT setup, the 10.0.0.1 network is mainly for my own usage.
To make things a little bit more complicated, I have a pfSense VM setup on one of my ESXi hosts (IP: 192.168.1.2) acting as a router/firewall to the 3rd network 172.16.1.0 for other VMs. A static route on the R7000 is setup to allow access to this 3rd network from the other 2.
I don't particularly like this setup, but it's striaght forward and serve the purpose of having 3 networks segmented. I could have bridge both the Netgear routers but don't want the R7000 be the only one doing all the heavy liftings.
