Novuake :
And then you restart your device and a new dynamic IP is assigned to you, problem solved.
Not to mention that NATting should avoid any issues relating to DDoS.
And simply turning of ICMP in your router will also negate issues.
You just post from your vast knowledge of networking I see. You did not even both to try to learn something.
So lets look at your magic soltuons.
You somehow managed to get your IP real ip changed...,,too bad for you skype will tell the new IP immediatly.
Why would you even think NAT has any affect..it actually in a way makes it worse. DoS attacks the IP not the machine. If I degrade your router it has the same impact.
Last if i send you 1 million icmp packets per second and lets assume your router can manage to drop them all the packets still got all the way to your house and ate up all your bandwidth. Besides nobody sends ping packets they send either random UDP packets on random ports from random spoofed IP addresses. Or they send specially crafted TCP packets designed to exploit memory or performance issues in a rotuer or end device.
Next time why do you not at least be courtesy enough to do some research before you post on topics you do not have strong knowledge on.