Your 4506 is behaving as expected (well, at least as documented).
When doing SPAN on C4K Sup3 or Sup4, incoming traffic is disabled on the destination interface.
-A
Asbjoern Hoejmark | CTO | CCIE #8525
Wingmen Solutions A/S | Gyngemose Parkvej 50, 1. | DK-2860 Søborg | Denmark
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