cHsrpGrpVirtualMacAddr

Mac Addresses used are as specified in RFC 2281. For
ethernet and fddi interfaces, a MAC address will be in the
range 00:00:0c:07:ac:00 through 00:00:0c:07:ac:ff. The last
octet is the hexadecimal equivalent of cHsrpGrpNumber
(0-255).
              
Some Ethernet and FDDI interfaces allow a unicast MAC
address for each HSRP group. Certain Ethernet
chipsets(LANCE Ethernet, VGANYLAN and QUICC Ethernet) only
support a single Unicast Mac Address. In this case, only
one HSRP group is allowed.
              
For TokenRing interfaces, the following three MAC 
addresses are permitted (functional addresses):
             C0:00:00:01:00:00
             C0:00:00:02:00:00
             C0:00:00:04:00:00.

MIB

CISCO-HSRP-MIB

OID

.1.3.6.1.4.1.9.9.106.1.2.1.1.16

Type

column

Access

readonly

Status

current

Parent

cHsrpGrpEntry