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Is it possible to create a mixed Cisco 3750X switch stack with crytographic (k9) and not cryptographic images?

Hello,

I am trying to add a 3750x to a stack. It is a mixed stack and all the members only use non-cryptographic IPBASE images.

Switch   Ports  Model              SW Version              SW Image            
------   -----  -----              ----------              ----------          
     1   52     WS-C3750G-48TS     12.2(35)SE5             C3750-IPBASE-M      
     2   52     WS-C3750G-48TS     12.2(35)SE5             C3750-IPBASE-M      
*    3   30     WS-C3750E-24PD     12.2(35)SE5             C3750E-UNIVERSAL-M  

I am trying to add the below
WS-C3750X-48P      12.2(55)SE10           C3750E-IPBASEK9-M  

As you can see the 3750x I am trying to add has the IPBASEK9 image. Does anyone have a mixed cryptographic/non-cryptographic image environment.

These will not stack. The stack does not even seem to recognize the switch is there at all or gives version mismatch.

Is there a way I can downgrade the IPBASEK9 to just IPBASE? I am not in a position to get a K9 license for the other switches.

Thanks!
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A Mart

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When I tried to place the non - cryptographic image on the stock that had the cryptographic image on it,I received an incompatibility error.

Same when I tried to put the cryptographic bin on the new cryptographic  switches.

I think the 3750e took the cryptographic bin but the 3750g's did are incompatible.

I wonder if it just depends on the switch model.

But yeah, when I tried to make all cryptographic or all non-cryptographic, it didn't work.
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