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How to Port span with Cisco 3725 & ESW-16

We are trying to setup a monitor computer on our Cisco 3725 router which has an ESW-16 switch module.  We want to be able to remotely log into the computer through RDP and access the packet capturing software.
However whenever we turn it on we are not able to remotely access the computer then, but as soon as we turn it off we can access the computer again.
Is there something we are missing?
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1 Solution
I belive this might be your problem.


The port does not transmit any traffic except that traffic required for the SPAN session unless learning is enabled. If learning is enabled, the port also transmits traffic directed to hosts that have been learned on the destination port.

Note: This learning feature is not available on EtherSwitch service and network modules.

pcpoloAuthor Commented:
Is there a different type of module that would do this that we could install in the router?
It won't work. The best solution is to put a 2nd NIC in the PC that you are using as a packet capture device. One NIC on the SPAN port and one NIC with IP address on a normal port. Then you can RDP to it anytime you want.
I am afraid there is, atm, no other way to do it than what Lrmoore says.
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