Hello,

i'm trying to monitor a APC Smart-UPS 1000 behind a APC AP9630 Network
Management Card via SNMPv3 using the AES Privacy Protocol.

* OS name and version:
    Debian 10.1
* exact NUT version:
    2.7.4
* NUT installation method:
    from debian package 2.7.4-8
* exact device name and related information
    * Model Number AP9630
    * Hardware Revision 08
    * Manufacture Date 09/18/2018
    * Application Module: sumx v6.5.6 Apr 6 2018 16:00:53
    * APC OS (AOS) v6.5.6 Mar 30 2018 16:51:08

* ups.conf

        [..]

    [foo]
      driver        = snmp-ups
      # 'hostname' is resolvable, tcpdump shows initial snmp udp request and 
reply
      port          = hostname
      snmp_version  = v3
      secLevel      = authPriv
      # 4 lowercase ascii letters
      secName       = xxxx
      #
      # 16 lower case ascii letters
      authPassword  = xxxxxxxxxxxxxxxx
      # 15 lower case ascii letters
      privPassword  = yyyyyyyyyyyyyyy
      authProtocol  = SHA
      privProtocol  = AES

        [..]

* driver debug output and tcpdump attached in nuttrace & nut.pcap

Searching for 9630 i found some similar reports to mailing list nut-upsuser 
from 2013, 2014 and 2016 indicating that others have this problem too. The 
oldest report suggests to use DES instead of AES which kinda works, but i'd 
very much prefer to not deploy anything using DES nowadays.

I did not find any reports indicating that using AES with nut actually works.

Using snmpget as the same user on the same machine does work with AES however:

        ~/.snmp/snmp.conf:
        defSecurityLevel  authPriv
        # same as in ups.conf
        defSecurityName   xxxx
        # same as in ups.conf
        defAuthPassphrase xxxxxxxxxxxxxxxx
        # same as in ups.conf
        defPrivPassphrase xxxxxxxxxxxxxxx
        defAuthType       SHA
        defPrivType       AES

        #doDebugging    1
        debugTokens     all

    $ snmpget hostname .1.3.6.1.2.1.1.2.0
    SNMPv2-MIB::sysObjectID.0 = OID: SNMPv2-SMI::enterprises.318.1.3.2.7

-- 
  Matthias Förste

Attachment: nut.pcap
Description: application/vnd.tcpdump.pcap

   0.000000     debug level is '4'
   0.000437     SNMP UPS driver: entering upsdrv_initups()
   0.000459     SNMP UPS driver: entering nut_snmp_init(snmp-ups)
   0.030273     Setting SNMP retries to 5
   0.030288     Setting SNMP timeout to 1 second(s)
   0.053684     SNMP UPS driver: entering load_mib2nut(auto)
   0.053717     trying the new match_sysoid() method
   0.053732     Entering nut_snmp_get_oid()
   0.053755     nut_snmp_get(.1.3.6.1.2.1.1.2.0)
   0.053769     nut_snmp_walk(.1.3.6.1.2.1.1.2.0)
   0.053783     nut_snmp_walk: max. iteration = 1
   0.059538     Can't get sysOID value
   0.059573     load_mib2nut: trying classic method with 'apcc' mib
   0.059588     su_find_info: "ups.model" found
   0.059602     Testing ups.model using OID .1.3.6.1.4.1.318.1.1.1.1.1.1.0
   0.059616     Entering nut_snmp_get_str()
   0.059630     nut_snmp_get(.1.3.6.1.4.1.318.1.1.1.1.1.1.0)
   0.059643     nut_snmp_walk(.1.3.6.1.4.1.318.1.1.1.1.1.1.0)
   0.059657     nut_snmp_walk: max. iteration = 1
   0.059688     load_mib2nut: testOID provided and doesn't match MIB 'apcc'!
   0.059704     load_mib2nut: trying classic method with 'mge' mib
   0.059718     su_find_info: "ups.model" found
   0.059739     Testing ups.model using OID .1.3.6.1.4.1.705.1.1.1.0
   0.059744     Entering nut_snmp_get_str()
   0.059750     nut_snmp_get(.1.3.6.1.4.1.705.1.1.1.0)
   0.059755     nut_snmp_walk(.1.3.6.1.4.1.705.1.1.1.0)
   0.059760     nut_snmp_walk: max. iteration = 1
   0.059769     load_mib2nut: testOID provided and doesn't match MIB 'mge'!
   0.059775     load_mib2nut: trying classic method with 'netvision' mib
   0.059781     su_find_info: "ups.model" found
   0.059786     Testing ups.model using OID .1.3.6.1.4.1.4555.1.1.1.1.1.1.0
   0.059791     Entering nut_snmp_get_str()
   0.059796     nut_snmp_get(.1.3.6.1.4.1.4555.1.1.1.1.1.1.0)
   0.059801     nut_snmp_walk(.1.3.6.1.4.1.4555.1.1.1.1.1.1.0)
   0.059806     nut_snmp_walk: max. iteration = 1
   0.059815     load_mib2nut: testOID provided and doesn't match MIB 
'netvision'!
   0.059821     load_mib2nut: trying classic method with 'pw' mib
   0.059826     su_find_info: "ups.model" found
   0.059832     Testing ups.model using OID 1.3.6.1.4.1.534.1.1.2.0
   0.059837     Entering nut_snmp_get_str()
   0.059842     nut_snmp_get(1.3.6.1.4.1.534.1.1.2.0)
   0.059847     nut_snmp_walk(1.3.6.1.4.1.534.1.1.2.0)
   0.059852     nut_snmp_walk: max. iteration = 1
   0.059860     load_mib2nut: testOID provided and doesn't match MIB 'pw'!
   0.059866     load_mib2nut: trying classic method with 'pxgx_ups' mib
   0.059871     su_find_info: "ups.model" found
   0.059876     Testing ups.model using OID 1.3.6.1.4.1.534.1.1.2.0
   0.059881     Entering nut_snmp_get_str()
   0.059887     nut_snmp_get(1.3.6.1.4.1.534.1.1.2.0)
   0.059892     nut_snmp_walk(1.3.6.1.4.1.534.1.1.2.0)
   0.059897     nut_snmp_walk: max. iteration = 1
   0.059905     load_mib2nut: testOID provided and doesn't match MIB 'pxgx_ups'!
   0.059911     load_mib2nut: trying classic method with 'aphel_genesisII' mib
   0.059917     su_find_info: "ups.model" found
   0.059922     Testing ups.model using OID .1.3.6.1.4.1.17373.3.1.1.0
   0.059927     Entering nut_snmp_get_str()
   0.059932     nut_snmp_get(.1.3.6.1.4.1.17373.3.1.1.0)
   0.059937     nut_snmp_walk(.1.3.6.1.4.1.17373.3.1.1.0)
   0.059942     nut_snmp_walk: max. iteration = 1
   0.059951     load_mib2nut: testOID provided and doesn't match MIB 
'aphel_genesisII'!
   0.059956     load_mib2nut: trying classic method with 'aphel_revelation' mib
   0.059962     su_find_info: "ups.model" found
   0.059967     Testing ups.model using OID .1.3.6.1.4.1.534.6.6.6.1.1.12.0
   0.059972     Entering nut_snmp_get_str()
   0.059977     nut_snmp_get(.1.3.6.1.4.1.534.6.6.6.1.1.12.0)
   0.059982     nut_snmp_walk(.1.3.6.1.4.1.534.6.6.6.1.1.12.0)
   0.059987     nut_snmp_walk: max. iteration = 1
   0.059995     load_mib2nut: testOID provided and doesn't match MIB 
'aphel_revelation'!
   0.060001     load_mib2nut: trying classic method with 'eaton_epdu' mib
   0.060007     su_find_info: "ups.model" found
   0.060012     Testing ups.model using OID 1.3.6.1.4.1.534.6.6.7.1.2.1.2.0
   0.060017     Entering nut_snmp_get_str()
   0.060022     nut_snmp_get(1.3.6.1.4.1.534.6.6.7.1.2.1.2.0)
   0.060027     nut_snmp_walk(1.3.6.1.4.1.534.6.6.7.1.2.1.2.0)
   0.060032     nut_snmp_walk: max. iteration = 1
   0.060049     load_mib2nut: testOID provided and doesn't match MIB 
'eaton_epdu'!
   0.060056     load_mib2nut: trying classic method with 'pulizzi_switched1' mib
   0.060061     su_find_info: "ups.model" found
   0.060067     Testing ups.model using OID .1.3.6.1.4.1.20677.2.1.1.0
   0.060072     Entering nut_snmp_get_str()
   0.060077     nut_snmp_get(.1.3.6.1.4.1.20677.2.1.1.0)
   0.060082     nut_snmp_walk(.1.3.6.1.4.1.20677.2.1.1.0)
   0.060087     nut_snmp_walk: max. iteration = 1
   0.060095     load_mib2nut: testOID provided and doesn't match MIB 
'pulizzi_switched1'!
   0.060101     load_mib2nut: trying classic method with 'pulizzi_switched2' mib
   0.060106     su_find_info: "ups.model" found
   0.060111     Testing ups.model using OID .1.3.6.1.4.1.20677.2.1.1.0
   0.060116     Entering nut_snmp_get_str()
   0.060121     nut_snmp_get(.1.3.6.1.4.1.20677.2.1.1.0)
   0.060126     nut_snmp_walk(.1.3.6.1.4.1.20677.2.1.1.0)
   0.060132     nut_snmp_walk: max. iteration = 1
   0.060140     load_mib2nut: testOID provided and doesn't match MIB 
'pulizzi_switched2'!
   0.060146     load_mib2nut: trying classic method with 'raritan' mib
   0.060151     su_find_info: "ups.model" found
   0.060156     Testing ups.model using OID .1.3.6.1.4.1.13742.1.1.12.0
   0.060161     Entering nut_snmp_get_str()
   0.060166     nut_snmp_get(.1.3.6.1.4.1.13742.1.1.12.0)
   0.060171     nut_snmp_walk(.1.3.6.1.4.1.13742.1.1.12.0)
   0.060176     nut_snmp_walk: max. iteration = 1
   0.060185     load_mib2nut: testOID provided and doesn't match MIB 'raritan'!
   0.060191     load_mib2nut: trying classic method with 'baytech' mib
   0.060196     su_find_info: "ups.model" found
   0.060201     Testing ups.model using OID .1.3.6.1.4.1.4779.1.3.5.2.1.24.1
   0.060206     Entering nut_snmp_get_str()
   0.060211     nut_snmp_get(.1.3.6.1.4.1.4779.1.3.5.2.1.24.1)
   0.060216     nut_snmp_walk(.1.3.6.1.4.1.4779.1.3.5.2.1.24.1)
   0.060221     nut_snmp_walk: max. iteration = 1
   0.060230     load_mib2nut: testOID provided and doesn't match MIB 'baytech'!
   0.060236     load_mib2nut: trying classic method with 'cpqpower' mib
   0.060241     su_find_info: "ups.model" found
   0.060246     Testing ups.model using OID .1.3.6.1.4.1.232.165.3.1.2.0
   0.060251     Entering nut_snmp_get_str()
   0.060256     nut_snmp_get(.1.3.6.1.4.1.232.165.3.1.2.0)
   0.060261     nut_snmp_walk(.1.3.6.1.4.1.232.165.3.1.2.0)
   0.060266     nut_snmp_walk: max. iteration = 1
   0.060274     load_mib2nut: testOID provided and doesn't match MIB 'cpqpower'!
   0.060280     load_mib2nut: trying classic method with 'bestpower' mib
   0.060285     su_find_info: "ups.model" found
   0.060291     Testing ups.model using OID .1.3.6.1.4.1.2947.1.1.2.0
   0.060296     Entering nut_snmp_get_str()
   0.060301     nut_snmp_get(.1.3.6.1.4.1.2947.1.1.2.0)
   0.060306     nut_snmp_walk(.1.3.6.1.4.1.2947.1.1.2.0)
   0.060311     nut_snmp_walk: max. iteration = 1
   0.060319     load_mib2nut: testOID provided and doesn't match MIB 
'bestpower'!
   0.060325     load_mib2nut: trying classic method with 'cyberpower' mib
   0.060330     su_find_info: "ups.model" found
   0.060335     Testing ups.model using OID .1.3.6.1.4.1.3808.1.1.1.1.1.1.0
   0.060340     Entering nut_snmp_get_str()
   0.060345     nut_snmp_get(.1.3.6.1.4.1.3808.1.1.1.1.1.1.0)
   0.060351     nut_snmp_walk(.1.3.6.1.4.1.3808.1.1.1.1.1.1.0)
   0.060356     nut_snmp_walk: max. iteration = 1
   0.060364     load_mib2nut: testOID provided and doesn't match MIB 
'cyberpower'!
   0.060370     load_mib2nut: trying classic method with 'delta_ups' mib
   0.060375     su_find_info: "ups.model" found
   0.060380     Testing ups.model using OID .1.3.6.1.4.1.2254.2.4.1.2.0
   0.060386     Entering nut_snmp_get_str()
   0.060391     nut_snmp_get(.1.3.6.1.4.1.2254.2.4.1.2.0)
   0.060396     nut_snmp_walk(.1.3.6.1.4.1.2254.2.4.1.2.0)
   0.060401     nut_snmp_walk: max. iteration = 1
   0.060409     load_mib2nut: testOID provided and doesn't match MIB 
'delta_ups'!
   0.060415     load_mib2nut: trying classic method with 'xppc' mib
   0.060420     su_find_info: "ups.model" found
   0.060426     Testing ups.model using OID .1.3.6.1.4.1.935.1.1.1.1.1.1.0
   0.060431     Entering nut_snmp_get_str()
   0.060436     nut_snmp_get(.1.3.6.1.4.1.935.1.1.1.1.1.1.0)
   0.060441     nut_snmp_walk(.1.3.6.1.4.1.935.1.1.1.1.1.1.0)
   0.060446     nut_snmp_walk: max. iteration = 1
   0.060465     load_mib2nut: testOID provided and doesn't match MIB 'xppc'!
   0.060471     load_mib2nut: trying classic method with 'huawei' mib
   0.060476     su_find_info: "ups.model" found
   0.060482     Testing ups.model using OID 
.1.3.6.1.4.1.2011.6.174.1.2.100.1.2.1
   0.060487     Entering nut_snmp_get_str()
   0.060492     nut_snmp_get(.1.3.6.1.4.1.2011.6.174.1.2.100.1.2.1)
   0.060497     nut_snmp_walk(.1.3.6.1.4.1.2011.6.174.1.2.100.1.2.1)
   0.060502     nut_snmp_walk: max. iteration = 1
   0.060511     load_mib2nut: testOID provided and doesn't match MIB 'huawei'!
   0.060516     load_mib2nut: trying classic method with 'ietf' mib
   0.060522     su_find_info: "ups.model" found
   0.060527     Testing ups.model using OID 1.3.6.1.2.1.33.1.1.2.0
   0.060532     Entering nut_snmp_get_str()
   0.060537     nut_snmp_get(1.3.6.1.2.1.33.1.1.2.0)
   0.060542     nut_snmp_walk(1.3.6.1.2.1.33.1.1.2.0)
   0.060547     nut_snmp_walk: max. iteration = 1
   0.060556     load_mib2nut: testOID provided and doesn't match MIB 'ietf'!
   0.060562     load_mib2nut: trying classic method with 'eaton_ats' mib
   0.060569     su_find_info: unknown info type (ups.model)
   0.060574     su_find_info: "device.model" found
   0.060580     Testing device.model using OID .1.3.6.1.4.1.534.10.2.1.2.0
   0.060585     Entering nut_snmp_get_str()
   0.060590     nut_snmp_get(.1.3.6.1.4.1.534.10.2.1.2.0)
   0.060595     nut_snmp_walk(.1.3.6.1.4.1.534.10.2.1.2.0)
   0.060600     nut_snmp_walk: max. iteration = 1
   0.060608     load_mib2nut: testOID provided and doesn't match MIB 
'eaton_ats'!
   0.060614     load_mib2nut: trying classic method with 'apc_ats' mib
   0.060620     su_find_info: unknown info type (ups.model)
   0.060626     su_find_info: "device.model" found
   0.060631     Testing device.model using OID .1.3.6.1.4.1.318.1.1.8.1.5.0
   0.060636     Entering nut_snmp_get_str()
   0.060641     nut_snmp_get(.1.3.6.1.4.1.318.1.1.8.1.5.0)
   0.060646     nut_snmp_walk(.1.3.6.1.4.1.318.1.1.8.1.5.0)
   0.060651     nut_snmp_walk: max. iteration = 1
   0.060659     load_mib2nut: testOID provided and doesn't match MIB 'apc_ats'!
   0.060665     load_mib2nut: trying classic method with 'ietf' mib
   0.060670     su_find_info: "ups.model" found
   0.060675     Testing ups.model using OID 1.3.6.1.2.1.33.1.1.2.0
   0.060680     Entering nut_snmp_get_str()
   0.060686     nut_snmp_get(1.3.6.1.2.1.33.1.1.2.0)
   0.060691     nut_snmp_walk(1.3.6.1.2.1.33.1.1.2.0)
   0.060696     nut_snmp_walk: max. iteration = 1
   0.060704     load_mib2nut: testOID provided and doesn't match MIB 'ietf'!
   0.060711     No supported device detected

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