[c-nsp] Monitor traffic on Cisco Routers

[Rob Taylor]

On 12/1/2010 9:51 PM, Muhammad Atif Jauhar wrote:
> Hi
>
> I have very basic question. Sorry for this.
>
> How I am able to see traffic (source IP, destination IP and port) which is
> passing from Cisco routers, from specific interface or as a whole.
>
> Which is easiest and troubleless way to achieve this. Kindly also guide me
> with full set of commands to achieve this.
>
>
>    
Netflow:

ip cef (should be on already)
int x/x
  "ip route-cache flow" or "ip flow [ingress | egress]"

"show ip cache flow" for viewing src/dst ip/port/qos