DDoSing from IP

[M I K E]

So some troll came to our teamspeak and some1 clicked a link and he says he got his IP..

Is it easy to DDoS from that?

[Francis]

If someone has your IP, then yes. You can be DDoS'ed.

[M I K E]

But if the guys has only like one computer, and how can i stop it? Contacting my ISP?

[Jack]

But if the guys has only like one computer, and how can i stop it? Contacting my ISP?

He needs to change it ASAP, but if he is already getting DDoS'ed it's to late.

[M I K E]

And if i get attacked, is there anything i can do anymore?

[M I K E]

but if he is already getting DDoS'ed it's to late.

Incorrect.
He can unplug his modem for a while and when he reconnects it his ISP will likely give him a new IP. I've also found that if I clone the MAC address on my routed I get assigned a new IP.

Is it safe to unplug my modem n shit?

[Jack]

to unplug my modem n shit?

Yes, 100%. I do it all the time, and when you turn the powerpoint off it also resetts your modem.

-Best of luck.