Viewing all the connection on my internet router

[haithamnofal]

Hi,

I have a case of an internet router having 100% CPU utilization; it seems there is a DoS attack on my internet link! How can I view the connections flowing through the router and on what ports are highly utilized? Also, how can I protect the router and the link from this attack?

Appreciate your help on this.

Regards,

Haitham

[mohammedmahmoud]

Hi there,

You can enable cache flow under your internet interface "ip route-cache flow", and then do "show ip cache flow" to see the suspicious source/destination IPs and ports, and you can further tell your provider to block them from his side as the best effective action.

HTH, please rate if it does help,

Mohammed Mahmoud.