Without the use of 3rd party applications, how can I perform minor monitoring on a router? For example, how can I monitor a specific workstation with it's I.P address or hostname with information on what type of traffic it's traversing inbound and outbound to and from the internet? For eg, I would like to monitor data transmissions, the source of the transmission (ie youtube video downloading), etc etc
Netflow is probably your best option for analysing traffic on the basis of source and destination IP address and ports.
You would normally want to export your netflow from your Cisco routers to a separate netflow collector for aggregation and collection but you can get some useful information using just the Cisco router itself.
Enable ip cache flow on each interface for which you would like to see traffic statistics as follows:
ip route-cache flow
To show the statistics use the command:
show ip cache flow
You should see stats similar to the following:
Protocol Total Flows Packets Bytes Packets Active(Sec) Idle(Sec)
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.