Westermo MRD-3x0 - Manual (Page 121)

121 6623-3201
Initiate tunnel
Check the box to enable the tunnel initiation. If the wireless
IP address is dynamic then this option would normally be
enabled.
Init rekeying, margin (mins) & fuzz
Rekeying is used to re-negotiated the connection prior to it
expiring. The options are:
Init rekeying •
Check to enable rekeying. Default is On.
Margin
•
The time in minutes prior to the connection
expiring at which attempts to negotiate a new
connection begin. Default is 10 Minutes.
Fuzz •
Defines the maximum percentage by which the
margin can be increased in order to randomise
rekeying intervals. Default is 100%.
Dead peer detection delay & timeout (sec)
Dead Peer Detection (DPD) is a method of detecting a dead
Internet Key Exchange (IKE) peer. The method uses IPsec traf-
fic patterns to minimise the number of messages required to
confirm the availability of the connection. The options are:
Delay •
Set the delay in seconds between Dead Peer
Detection keepalives that are sent for the con-
nection.
Timeout •
The time in seconds to declare the peer dead
after the delay and not receiving data or a keep-
alive.