IKEv2 uses a liveness check (similar to Dead Peer Detection (DPD) in IKEv1)
to determine whether a peer is still available. The liveness check option is enabled
by default. Select and
Advanced Options
to configure the interval (in seconds) in
the
Liveness Check
for the IKE gateway. Note that you can configure the
liveness check option only if you have selected
IKEv2 only mode
or
IKEv2
preferred mode
for the
Version
in the
IKE
Gateway
() configuration. If you select
IKEv1 only mode
for the IKE Gateway
Version
, then the
Advanced
Options
would display IKEv1 configuration parameters such as,
Exchange mode
and
Dead Peer
Detection
.