[strongSwan] libipsec vs kernel implementation

Andreas Steffen andreas.steffen at strongswan.org
Tue Apr 23 06:13:47 CEST 2013

Hello Noel,

no there is no speed benefit with libipsec, quite to the contrary -
ESP payload encryption is much faster if done in the kernel.
libipsec is an option option if a user does not have root privileges
as is the case with Android 4.x devices offering a VPN tun device.
Under Linux there is currently no advantage with libipsec because
root privileges are still needed to open a tun device.

Best regards


On 04/22/2013 05:18 PM, Noel Kuntze wrote:
> Hello,
> Is there a reason I should use libipsec instead of the kernel
> implementation? Is there a speed benefit to it or something?
> Regards,
> Noel

Andreas Steffen                         andreas.steffen at strongswan.org
strongSwan - the Linux VPN Solution!                www.strongswan.org
Institute for Internet Technologies and Applications
University of Applied Sciences Rapperswil
CH-8640 Rapperswil (Switzerland)

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