
Field
Description
Alive Check
Only for Phase-1 (IKE) Parameters
Select the method to be used to check the functionality of the
IPSec connection.
In addition to the default method Dead Peer Detection (DPD),
the (proprietary) Heartbeat method is implemented. This sends
and receives signals every 5 seconds, depending on the con-
figuration. If these signals are not received after 20 seconds,
the SA is discarded as invalid.
Possible values:
•
"
(default value): Your device detects and uses
the mode supported by the remote terminal.
•
4
: Your device sends and expects no heartbeat.
Set this option if you use devices from other manufacturers.
•
%! #+1 &
: Your device expects a
heartbeat from the peer but does not send one itself.
•
%! #3" &
: Your device expects no heart-
beat from the peer, but sends one itself.
•
%! #3" Q+1&
: Your device expects a
heartbeat from the peer and sends one itself.
•
" 6
: Use DPD (dead peer detection) in
accordance with RFC 3706. DPD uses a request-reply pro-
tocol to check the availability of the remote terminal and can
be configured independently on both sides. This option only
checks the availability of the peer if data is to be sent to it.
•
" 6 #"&
: Use DPD (dead peer
detection) in accordance with RFC 3706. DPD uses a re-
quest-reply protocol to check the availability of the remote
terminal and can be configured independently on both sides.
This option is used to carry out a check at certain intervals
depending on forthcoming data transfers.
Only for Phase-1 (IKEv2) Parameters
Enable or disable alive check.
The function is enabled by default.
Block Time
Define how long a peer is blocked for tunnel setups after a
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