[Swan-dev] Scalability of Libreswan

[Paul Wouters]

On Jan 9, 2022, at 17:19, Balaji Thoguluva <tbbalaji at gmail.com> wrote:
> 
> 
> Hi Folks,
> 
> I have some basic questions from a scaling and performance perspective. 
> 
> Does Libreswan IKE stack scale well for load scenarios? How many IKE/IPsec tunnels can it support simultaneously?

Many thousands. It really depends on your hardware and to some extend your configuration.

Most of the cpu should be busy with packet crypto which is all in the kernel, and not libreswan.

Paul