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IPS host blocking not happening in VLAN 1

Hi

I have IDSM2 module installed in 6500 core switch and configured in prismouscous mode. i have added interfaces of 6500 in IPS as blocking device and i can see all the vlan interfaces along with Vlan 1,

When i test the attack, i can see the IPS action as a deny host entry in access-list across all the vlan except native vlan 1.

Is there any exception for for native vlan? i would appreciate if some one can share experience!

IDSM2

Image version 7.0(1)

Signature: S475

E3

Regards

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