Can DNS poisoning throttle connection?

[sephiroth1234]

Just asking. If my machine is afflicted by DNS cache poisoning, does it have the ability to throttle my connection?

I just keep on noticing an attack from an IP address owned by my ISP, I can see it through my firewall's logs when I download files bigger than 700MB.

I'm just wondering if that is the reason of my 40KB/s bottleneck connection. My speed is originally 2.9Mbps.

 

[Dr Super Good]

One way to find out.

Change your DNS to 8.8.8.8 or 8.8.4.4. This can be done in your network connection Properties under Internet Protocol Version 4 and choosing to specify your own DNS.

8.8.8.8 and 8.8.4.4 are both DNS servers run by Google. Google has a high regard to security so it is highly likely they will not be poisoned.

If you use a local NAT with DHCP support such as a "router" then you should be able to change the DNS for all computers on the network from there.

 

[sephiroth1234]

I'll see if it will work against the throttling, thanks!

 

[Dr Super Good]

A lot of ISPs apply switch based throttling to prevent peer to peer trafic overloading their over-sold bandwidth.

If I peer to peer something during the day I get 50 KB/sec max. At night I get up to 800 KB/sec. You can even notice a cutoff where it will suddenly change (around midnight).

 

[Zakamutt]

You can try this tool:

http://broadband.mpi-sws.org/transparency/bttest.php