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DNS not working whenever crypto map is applied to interface

Rudy Sanjoko
Level 4
Level 4

Hi guys,

 

I don't understand why the ASA is not able to resolve names whenever I apply following command:

crypto map [map_name] interface outside

Without above command the ASA will be able to resolve names immediately without issue.

 

Without command above, I can see packets leaving on outside interface when I ping google.com. But once above command is applied, I don't see the packet leaving any interfaces. I know this because I have configured packet capture on outside/inside/mgmt interfaces and also by using logging/monitoring feature on ASDM.

 

Can someone help or explain why the ASA behaves like this? Any thoughts/enlighten are appreciated.

 

Best regards,

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