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What is the through put limit of ipsec / OpenSwan?

I am connecting to a Cisco ASA

I am using ipsec version:

Linux Openswan U2.6.37/K3.2.22-35.60.amzn1.x86_64 (netkey)

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The IPsec throughput is dependent on the underlying hardware platform (specifically CPU cores). There is no hard limit baked into the software implementation itself.

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It depends on CPU and what kind of cipher is used. See this link for more info

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