The specifications for this card seem to indicate that SPAN can be used for port monitoring with this router, however port monitoring commands (ie: show port monitor) are not available in the IOS (version 12.4). Any ideas on how to get it working?
Thanks, Bill
Have you tried
#sh monitor sess 1 Session 1
--------- Source Ports: RX Only: None TX Only: None Both: None Source VLANs: RX Only: None TX Only: None Both: None Destination Ports: None Filter VLANs: None
This is a 3845 with NM-16ESW.
No idea if it actually works though.
Using a 9-ESW HWIC, I tried this, in global config mode (prompt=Routername(config)# ) after doing conf t monitor session 1 source interface fastethernet 0/1/0 monitor session 1 destination interface fastethernet 0/1/8
My objective was to copy all the traffic on interface 0/1/0 to the 0/1/8 interface, where I plugged in a PC with ethereal.
To stop the monitor session and remove the configuration do no monitor session 1
If this sort of thing works for you please say and confirm that what I did makes sense. I am a complete beginner with Cisco and read about this monitor session facility on one of the manual pages I have managed to print out. I have an idea that the Cisco itself can somehow display the packets going through but I have yet to discover what commands do this and how to ever stop such a process if I get it started.
Best regards, Eric.
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