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 100 s, moon clears the connection after 4 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.