MAC Address As Index

Hi,

When using MAC Address as an index ( I am using MacAddress type from
SNMPv2-TC.) the output is incorrect because the length of the string
is prefixed as mac address is defined as OCTET STR there is an extra
byte and the last byte of mac address is interpreted as next OID.

snmpwalk:
   HistValue."wlp8s0f0".'....B.'.hist_2.2.19
snmpwalk -OX
  HistValue["wlp8s0f0"][STRING: 06:00:90:e6:42:99][hist_2][2].19

In the above examples last but one OID 2 is hist_2. Is there a way to
disable prefixing of length?

-- 
Thanks,
Regards,
Chaitanya T K.