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New Member

Monitor DoS attack on the router

Hi,

How to monitor DoS attack on the router? My router is getting aggressive and cutting down the session.

Thanks.

2 REPLIES
Cisco Employee

Re: Monitor DoS attack on the router

Hi,

One way to find out the traffic coming into or going out of the interface is to enable "ip route-cache flow" under the interface

show ip cache flow command will show you the source and destination interface info to help you track down a specific host that could be causing the issue.

it can be chatty if your cpu is very high i would not recommend.

hope this helps

Raymond

New Member

Re: Monitor DoS attack on the router

I agree with Raymond ,show ip cache flow command will show you the source and destination interface info to help you track down a specific host that could be causing the issue.

Then you can configure Control plane policy to limit the traffic to cpu.

Regards
syed.

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