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Cisco2811 and AIM-VPN/SSL-2 not using hardware crypto module

Arvyr
Level 1
Level 1

Hello,

 

for a short term excercise I configured two remote sites with Cisco 2811 and connected them to the HQ via DMVPN.

As the IPsec throughput is quite low (about 2-3mbit/s as usual for this model) I installed AIM-VPN-modules into all of them to increase performance.

 

However, these modules seem to be ignored as I still see no increase in throughput and the cpu history still shows 80-100% during traffic intensive times.

 

I can see the module with "show inventory" and "show crypto engine brief".

It is enabled but "show crypto engine accelerator statistics" shows still all zeros at bytes/packets in and out.

 

I'm using the latest IOS (adventerprise 15.1(4)M12a).

 

Any ideas what I'm doing wrong? Or is this setup not supported anymore? Other ideas?

VPN-config and show outputs are attached.

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