OID value: 1.3.6.1.2.1.5.3
OID description:
icmpInDestUnreachs OBJECT-TYPE SYNTAX Counter ACCESS read-only STATUS mandatory DESCRIPTION "The number of ICMP Destination Unreachable messages received." ::= { icmp 3 }
See also the OID Repository website reference for 1.3.6.1.2.1.5.3