i do like to know what is cisco vpn internal service module,how does it words,and where we can use it ,
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Cisco VPN Internal Service Module is a module for Cisco ISR G2.
I would say the main purpose is ability to offload encryption to a dedicated service module. Dedicated encryption protects performance while using CPU for other services.
You can find data sheet here:
Also in data sheet you will find what Routers support this module.
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