If your destination device is a Cisco Router, it is mandatory to enable the IP SLA Responder in it. Open a CLI session on the destination router and follow the below steps.
Note: Enter any one of the command to enable IP SLA responder as it varies according to the IOS versions. If multiple destination devices (Ciso devices) are connected to the source, it is important to configure the IP SLA Resonder in each of those devices.
For more information on Cisco IP SLA configuration,visit https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipsla/configuration/15-mt/sla-15-mt-book/sla_icmp_echo.html