[Swan] Working VPN but Moany Log

[Paul Wouters]

On Tue, 22 May 2018, Madden, Joe wrote:

> We have a VPN working with a Cisco ASA 5506 but where getting the random log entries:
>
> sending unencrypted notification v2N_INVALID_IKE_SPI to

You might be hit by the fragmentation bug, that could cause these to
happen. Try applying:

https://github.com/libreswan/libreswan/commit/95b87fb161287ddc7ac8e2c2bebca896da89a20d

Paul