[strongSwan] mark_updown

[Justin Pryzby]

On Mon, Aug 07, 2017 at 11:41:53AM -0400, Sean Courtney wrote:
> The closest example to my issue is:
> https://www.strongswan.org/uml/testresults/ikev2/nat-rw-mark/index.html
> 
> I copied the _updown script to /etc/ and renamed it mark_updown. It is
> root:root and has 761 permissions.

Could you try adding near the top of the script:

exec >>/var/log/updown.log 2>&1
set -x

Justin