Hi Experts,

    We are facing the following issue on Centos 8  while trying to perform 
snmpwalk using the following command

$ snmpwalk -On -e 0x0102030405060708 -v 3 -u myuser -a SHA -A mypassword -x AES 
-l authNoPriv -M +BROADHOP-MIB:PRODUCT-FILE-MIB vm01 
.1.3.6.1.4.1.26878.200.3.2.70
   .1.3.6.1.4.1.26878.200.3.2.70 = No Such Object available on this agent at 
this OID

Below is the rpm used for Centos 8
[root@vm01 ~]# rpm -qa | grep net-snmp
net-snmp-5.8-12.el8_1.1.x86_64
net-snmp-libs-5.8-12.el8_1.1.x86_64
net-snmp-utils-5.8-12.el8_1.1.x86_64
net-snmp-agent-libs-5.8-12.el8_1.1.x86_64

However on our Centos 6 and 7 enviornment, the same command is working fine and 
following is the output
$ snmpwalk -On -e 0x0102030405060708 -v 3 -u myuser -a SHA -A mypassword -x AES 
-l authNoPriv -M +BROADHOP-MIB:PRODUCT-FILE-MIB vm01 
.1.3.6.1.4.1.26878.200.3.2.70
.1.3.6.1.4.1.26878.200.3.2.70.1.4 = INTEGER: 12
.1.3.6.1.4.1.26878.200.3.2.70.1.4.0 = INTEGER: 12
.1.3.6.1.4.1.26878.200.3.2.70.1.5 = INTEGER: 5
.1.3.6.1.4.1.26878.200.3.2.70.1.5.0 = INTEGER: 5
.1.3.6.1.4.1.26878.200.3.2.70.1.6 = INTEGER: 1
.1.3.6.1.4.1.26878.200.3.2.70.1.6.0 = INTEGER: 1
.1.3.6.1.4.1.26878.200.3.2.70.1.7 = INTEGER: 8061096
.1.3.6.1.4.1.26878.200.3.2.70.1.7.0 = INTEGER: 8061096
.1.3.6.1.4.1.26878.200.3.2.70.1.8 = INTEGER: 1775736
.1.3.6.1.4.1.26878.200.3.2.70.1.8.0 = INTEGER: 1775736
.1.3.6.1.4.1.26878.200.3.2.70.1.9 = INTEGER: 4194300
.1.3.6.1.4.1.26878.200.3.2.70.1.9.0 = INTEGER: 4194300
.1.3.6.1.4.1.26878.200.3.2.70.1.10 = INTEGER: 4194300
.1.3.6.1.4.1.26878.200.3.2.70.1.10.0 = INTEGER: 4194300

Below is the rpm used for Centos 6
[root@ vm01 ~]# rpm -qa | grep net-snmp
net-snmp-libs-5.5-57.el6_8.1.x86_64
net-snmp-5.5-57.el6_8.1.x86_64
net-snmp-utils-5.5-57.el6_8.1.x86_64


Below is the snmpd.conf file used for Centos 8. We are using private mibs and 
trying to fetch the respective details

rouser myuser
rouser myuser_trap
com2sec local     localhost           myuser
com2sec6 local     localhost           myuser
group MyRWGroup usm        local
group MyRWGroup usm        myuser
view all    included  .1                               80
access MyRWGroup ""      any       noauth    exact  all    all    none
syslocation Unknown (edit /etc/snmp/snmpd.conf)
syscontact Root  (configure /etc/snmp/snmp.local.conf)
master agentx
agentAddress udp:161,udp6:161


agentSecName myuser_trap

trapsess -v 3 -u myuser_trap -a SHA -m 
0x7aed7094e8d5eaf303a4dff14406367ba52b3757 -x AES -m 
0x7aed7094e8d5eaf303a4dff14406367b -l authPriv vip02


##########
#
# Local Stats
#
ignoreDisk /proc
ignoreDisk /proc/sys/fs/binfmt_misc
ignoreDisk /var/lib/nfs/rpc_pipefs
ignoreDisk /dev/shm
ignoreDisk /dev/pts
disk / 10%


swap 102400

load 9 9 9

#linkUpDownNotifications yes

notificationEvent  linkUpTrap    linkUp   ifIndex ifAdminStatus ifOperStatus
notificationEvent  linkDownTrap  linkDown ifIndex ifAdminStatus ifOperStatus



monitor  -u myuser_trap -r 60 -e linkUpTrap -o ifDescr  "Generate linkUp" 
ifOperStatus != 2
monitor  -u myuser_trap -r 60 -e linkDownTrap -o ifDescr "Generate linkDown" 
ifOperStatus == 2

# Note: alert!=0, clear==0 and messages must be unique or snmpd errors.
monitor -u myuser_trap -r 60 -o dskPath -o dskErrorMsg "DiskFullAlert" 
dskErrorFlag != 0
monitor -u myuser_trap -r 60 -o dskPath -o dskErrorMsg "DiskFullClear" 
dskErrorFlag == 0
monitor -u myuser_trap -r 60 -o memErrorName -o memSwapErrorMsg "LowSwapAlert" 
memSwapError != 0
monitor -u myuser_trap -r 60 -o memErrorName -o memSwapErrorMsg "LowSwapClear" 
memSwapError == 0
monitor -u myuser_trap -r 60 -o laNames -o laErrMessage  "HighLoadAlert" 
laErrorFlag != 0
monitor -u myuser_trap -r 60 -o laNames -o laErrMessage  "HighLoadClear" 
laErrorFlag == 0


##########
#
# System Stats
#

# User, System and Idle CPU (VM-SNMP-MIB ss)
proxy -e 0x0102030405060708 -v 3 -u myuser -a SHA -m 
0x71d8d544a7447e377fa5fc355d8f08f81f1a901c -x AES -m 
0x71d8d544a7447e377fa5fc355d8f08f8 -l authPriv localhost 
.1.3.6.1.4.1.26878.200.3.2.70.1.1.0  .1.3.6.1.4.1.2021.11.9.0
proxy -e 0x0102030405060708 -v 3 -u myuser -a SHA -m 
0x71d8d544a7447e377fa5fc355d8f08f81f1a901c -x AES -m 
0x71d8d544a7447e377fa5fc355d8f08f8 -l authPriv localhost 
.1.3.6.1.4.1.26878.200.3.2.70.1.2.0  .1.3.6.1.4.1.2021.11.10.0
proxy -e 0x0102030405060708 -v 3 -u myuser -a SHA -m 
0x71d8d544a7447e377fa5fc355d8f08f81f1a901c -x AES -m 
0x71d8d544a7447e377fa5fc355d8f08f8 -l authPriv localhost 
.1.3.6.1.4.1.26878.200.3.2.70.1.3.0  .1.3.6.1.4.1.2021.11.11.0
proxy -e 0x0102030405060708 -v 3 -u myuser -a SHA -m 
0x71d8d544a7447e377fa5fc355d8f08f81f1a901c -x AES -m 
0x71d8d544a7447e377fa5fc355d8f08f8 -l authPriv localhost 
.1.3.6.1.4.1.26878.200.3.2.70.1.1  .1.3.6.1.4.1.2021.11.9.0
proxy -e 0x0102030405060708 -v 3 -u myuser -a SHA -m 
0x71d8d544a7447e377fa5fc355d8f08f81f1a901c -x AES -m 
0x71d8d544a7447e377fa5fc355d8f08f8 -l authPriv localhost 
.1.3.6.1.4.1.26878.200.3.2.70.1.2  .1.3.6.1.4.1.2021.11.10.0
proxy -e 0x0102030405060708 -v 3 -u myuser -a SHA -m 
0x71d8d544a7447e377fa5fc355d8f08f81f1a901c -x AES -m 
0x71d8d544a7447e377fa5fc355d8f08f8 -l authPriv localhost 
.1.3.6.1.4.1.26878.200.3.2.70.1.3  .1.3.6.1.4.1.2021.11.11.0
# 1, 5 and 15 Minute Load Averages (VM-SNMP-MIB la)
proxy -e 0x0102030405060708 -v 3 -u myuser -a SHA -m 
0x71d8d544a7447e377fa5fc355d8f08f81f1a901c -x AES -m 
0x71d8d544a7447e377fa5fc355d8f08f8 -l authPriv localhost 
.1.3.6.1.4.1.26878.200.3.2.70.1.4  .1.3.6.1.4.1.2021.10.1.5.1
proxy -e 0x0102030405060708 -v 3 -u myuser -a SHA -m 
0x71d8d544a7447e377fa5fc355d8f08f81f1a901c -x AES -m 
0x71d8d544a7447e377fa5fc355d8f08f8 -l authPriv localhost 
.1.3.6.1.4.1.26878.200.3.2.70.1.5  .1.3.6.1.4.1.2021.10.1.5.2
proxy -e 0x0102030405060708 -v 3 -u myuser -a SHA -m 
0x71d8d544a7447e377fa5fc355d8f08f81f1a901c -x AES -m 
0x71d8d544a7447e377fa5fc355d8f08f8 -l authPriv localhost 
.1.3.6.1.4.1.26878.200.3.2.70.1.6  .1.3.6.1.4.1.2021.10.1.5.3
proxy -e 0x0102030405060708 -v 3 -u myuser -a SHA -m 
0x71d8d544a7447e377fa5fc355d8f08f81f1a901c -x AES -m 
0x71d8d544a7447e377fa5fc355d8f08f8 -l authPriv localhost 
.1.3.6.1.4.1.26878.200.3.2.70.1.4.0  .1.3.6.1.4.1.2021.10.1.5.1
proxy -e 0x0102030405060708 -v 3 -u myuser -a SHA -m 
0x71d8d544a7447e377fa5fc355d8f08f81f1a901c -x AES -m 
0x71d8d544a7447e377fa5fc355d8f08f8 -l authPriv localhost 
.1.3.6.1.4.1.26878.200.3.2.70.1.5.0  .1.3.6.1.4.1.2021.10.1.5.2
proxy -e 0x0102030405060708 -v 3 -u myuser -a SHA -m 
0x71d8d544a7447e377fa5fc355d8f08f81f1a901c -x AES -m 
0x71d8d544a7447e377fa5fc355d8f08f8 -l authPriv localhost 
.1.3.6.1.4.1.26878.200.3.2.70.1.6.0  .1.3.6.1.4.1.2021.10.1.5.3
# Memory Total, Memory Available, Swap Total, Swap Available (VM-SNMP-MIB mem)
proxy -e 0x0102030405060708 -v 3 -u myuser -a SHA -m 
0x71d8d544a7447e377fa5fc355d8f08f81f1a901c -x AES -m 
0x71d8d544a7447e377fa5fc355d8f08f8 -l authPriv localhost 
.1.3.6.1.4.1.26878.200.3.2.70.1.7  .1.3.6.1.4.1.2021.4.5.0
proxy -e 0x0102030405060708 -v 3 -u myuser -a SHA -m 
0x71d8d544a7447e377fa5fc355d8f08f81f1a901c -x AES -m 
0x71d8d544a7447e377fa5fc355d8f08f8 -l authPriv localhost 
.1.3.6.1.4.1.26878.200.3.2.70.1.8  .1.3.6.1.4.1.2021.4.6.0
proxy -e 0x0102030405060708 -v 3 -u myuser -a SHA -m 
0x71d8d544a7447e377fa5fc355d8f08f81f1a901c -x AES -m 
0x71d8d544a7447e377fa5fc355d8f08f8 -l authPriv localhost 
.1.3.6.1.4.1.26878.200.3.2.70.1.9  .1.3.6.1.4.1.2021.4.3.0
proxy -e 0x0102030405060708 -v 3 -u myuser -a SHA -m 
0x71d8d544a7447e377fa5fc355d8f08f81f1a901c -x AES -m 
0x71d8d544a7447e377fa5fc355d8f08f8 -l authPriv localhost 
.1.3.6.1.4.1.26878.200.3.2.70.1.10 .1.3.6.1.4.1.2021.4.4.0
proxy -e 0x0102030405060708 -v 3 -u myuser -a SHA -m 
0x71d8d544a7447e377fa5fc355d8f08f81f1a901c -x AES -m 
0x71d8d544a7447e377fa5fc355d8f08f8 -l authPriv localhost 
.1.3.6.1.4.1.26878.200.3.2.70.1.7.0  .1.3.6.1.4.1.2021.4.5.0
proxy -e 0x0102030405060708 -v 3 -u myuser -a SHA -m 
0x71d8d544a7447e377fa5fc355d8f08f81f1a901c -x AES -m 
0x71d8d544a7447e377fa5fc355d8f08f8 -l authPriv localhost 
.1.3.6.1.4.1.26878.200.3.2.70.1.8.0  .1.3.6.1.4.1.2021.4.6.0
proxy -e 0x0102030405060708 -v 3 -u myuser -a SHA -m 
0x71d8d544a7447e377fa5fc355d8f08f81f1a901c -x AES -m 
0x71d8d544a7447e377fa5fc355d8f08f8 -l authPriv localhost 
.1.3.6.1.4.1.26878.200.3.2.70.1.9.0  .1.3.6.1.4.1.2021.4.3.0
proxy -e 0x0102030405060708 -v 3 -u myuser -a SHA -m 
0x71d8d544a7447e377fa5fc355d8f08f81f1a901c -x AES -m 
0x71d8d544a7447e377fa5fc355d8f08f8 -l authPriv localhost 
.1.3.6.1.4.1.26878.200.3.2.70.1.10.0 .1.3.6.1.4.1.2021.4.4.0
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