OID value: 1.3.6.1.2.1.4.22.1.2
OID description:
ipNetToMediaPhysAddress OBJECT-TYPE SYNTAX PhysAddress ACCESS read-write STATUS mandatory DESCRIPTION "The media-dependent `physical' address." ::= { ipNetToMediaEntry 2 }
See also the OID Repository website reference for 1.3.6.1.2.1.4.22.1.2