The roadwarrior carol sets up an IPsec tunnel connection to the gateway moon
which in turn activates Dead Peer Detection (DPD) with a polling interval of 10 s.
When the network connectivity between carol and moon is forcefully disrupted,
moon clears the connection after a number of unsuccessful retransmits.
The roadwarrior carol sets up an IPsec tunnel connection to the gateway
moon. Both end points activate Dead Peer Detection (DPD) with a
polling interval of 10 s. When the network connectivity between carol
and moon is forcefully disrupted for a duration of 10 s, moon
clears the connection after 2 unsuccessful retransmits whereas carol
also takes down the connection but installs a route which triggers when
carol sends a ping to client alice behind gateway moon.