Monitoring Network Traffic on Cisco 1800 series Routers

Hi Guys,

Need some help here. Can someone advise me on how to go about monitoring the traffic that goes in/out of my cisco 1800 series router please? I'm facing some connectivity issues and would like to check if the network packet has managed to get to my router.

Thanks A lots

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Originally Posted by Sloane

Hi Guys,

Need some help here. Can someone advise me on how to go about monitoring the traffic that goes in/out of my cisco 1800 series router please? I'm facing some connectivity issues and would like to check if the network packet has managed to get to my router.

Thanks A lots

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Sniffer or netflow come to mind First . For a sniffer, you'd need to install a switch outside the interface you wish to monitor and configure a span session. For netflow, you would need a collector/analysis server running netflow and then configure the router to send the data (if the 1800 supports it which I do not know since its a lower end device). Those are probably your only two options other than a debug/acl which could impact performance.