isakmpd(8) on OpenBSD
The text e0800f09c35d, as OpenBSD 8.0 shipped it.
ISAKMP/Oakley a.k.a. IKEv1 key management daemon
Flags it lists
-
-4 -
-6 -
-D -
-K -
-N -
-S -
-T -
-a -
-c -
-d -
-f -
-n -
-p -
-v