Am 26.03.19 um 07:58 schrieb Ulrich Windl:
I don't understand that: Keepalive (as I know it) has nothing to
do with idle
connections, but only with dead connections.
Any statefull firewall will
reset/drop/delete/discard a connections state information
from it's internal connection table after some time if no traffic was seen (for
example for 5 minutes)