Need to setup monitoring aon multiple ports for IDS

I have a cisco 3845. I need to need to setup monitoring aon multiple ports for IDS on 2 ports. How do I do this.
Also,
Is there a way to make ports on the switch portion act like hubs.
Thanks

I assume that you are referring to the Ethernet Switch Module in the 3845. If so it should support SPAN. Here is a SPAN configurations guide:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122limit/122z/122zj15/fz1636nm.htm#1820129

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The Hatter,
I am a novice at Mac so I read all I can. From what I understand the NEC monitors I bought require Display Port for their maximum performance. The GTX 680 only has DVI outputs. Difference from what I understand is larger bandwidth with the DP.
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Need to setup monitoring aon multiple ports for IDS

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