[Nut-upsdev] SNMPv3

[Arnaud Quette]

Hi Tim

2013/1/29 Tim Rice <tim at multitalents.net>

>
> nut-2.6.5
> Scientific Linux 6.3
> APC AP9630 management card
>
> My basic question is, does nut's SNMPv3 implementation work?
>
> I have this in /etc/ups/ups.conf
> ......
> [tfapc01]
>         driver = snmp-ups
>         port = tfapc01.testfest.ixorg.org
>         mibs = apcc
>

drop the above field: mibs is autodetected, and is blocking here

        snmp_version = v3
>
        secLevel = authPriv
>         secName = tfsnmpprof1
>         authPassword = ralow6moHet7zoboP8
>         privPassword = tuseL8Pakaz9degim7
>

when sending to a public mailing list, prefer to trim passwds ;)


>         authProtocol=MD5
>         privProtocol=AES
>         desc = "APC SU700 SNMP v3 device, with the highest security level"
> ......
>
> Now I test
> /sbin/snmp-ups -DDD -a tfapc01
> Network UPS Tools - Generic SNMP UPS driver 0.68 (2.6.5)
>    0.000000     debug level is '3'
>    0.000600     SNMP UPS driver : entering upsdrv_initups()
>    0.000618     SNMP UPS driver : entering nut_snmp_init(snmp-ups)
>    0.047231     SNMP UPS driver : entering load_mib2nut(apcc)
>    0.047243     load_mib2nut: trying classic method with 'apcc' mib
>    0.047248     Entering nut_snmp_get_str()
>    0.047252     nut_snmp_get(.1.3.6.1.4.1.318.1.1.1.1.1.1.0)
>    0.051083     Unknown mibs value: apcc
>
> Doesn't look good. But if we use snmpget from the net-snmp package it
> works.
>
> snmpget -Cf -v 3 -u tfsnmpprof1 -l authPriv -a MD5 -A ralow6moHet7zoboP8 \
> -x AES -X tuseL8Pakaz9degim7 tfapc01 .1.3.6.1.4.1.318.1.1.1.1.1.1.0
> No log handling enabled - turning on stderr logging
> SNMPv2-SMI::enterprises.318.1.1.1.1.1.1.0 = STRING: "SMART-UPS 700"
>
> Now if we drop the "snmp_version" line from ups.conf and SNMPv1 is enabled
> on the APC with default public read private write, NUT will happily use
> its defaults to talk to the APC using v1 even though you have configured
> the ups.conf settings for v3 following documentation examples.
>
> Note: contrary to the documentation saying that valid values for
> snmp_version are v1 or v2c, if we look at line 348 of
> nut-2.6.5/drivers/snmp-ups.c we see that v3 is also a valid choice.
>

thanks for pointing it, it's now fixed (svn r3854)

cheers,
arno
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