I'd like to set up a SPAN [port-mirror] port on our main router. The router is a Cisco 2821. The goal is to be able to troubleshoot Internet issues at the packet level, and it won't happen that ...
I have a HP ProCurve switch with 24 ports. If I set up port 24 to mirror port 1 (which goes to my router), can I use port 24 for normal LAN access as well as to run something like ntop or bandwidthd? ...