OID value: 1.3.6.1.2.1.5.16
OID description:
icmpOutDestUnreachs OBJECT-TYPE SYNTAX Counter ACCESS read-only STATUS mandatory DESCRIPTION "The number of ICMP Destination Unreachable messages sent." ::= { icmp 16 }
See also the OID Repository website reference for 1.3.6.1.2.1.5.16