Configuring Netflow on 2600 router

[Adesh001]

Hi Everyone,

I have been asked to monitor the bandwidth and protocols that are passing through my 2600 router. I am using Passler router traffic grapher sofware to generate my graphs.

I have never configured netflow on a router before, however after reading some cisco documents this is what I did.

configure t
int serial0/0
ip route-cache flow
exit
ip flow-export {ip add} 2048 version 5 peer-as
exit
clear ip flow stats

At this point I am getting graphical information on the prtg. I have also configured another interface on the router similar to above. Is anyone out there familar with Passler router traffic grapher.? Even though I have configured netflow on two interface, I am on seeing One graph on PRTG. How do I separate the interfaces?

Thanks
Adesh