[Nut-upsuser] [EXTERNAL] SNMP shutdown timing out

David Zomaya David_Zomaya at tripplite.com
Thu Apr 30 00:11:21 BST 2020

The encryption of SNMPv3 will might make it little harder to debug with tcpdump if you have to drill into packet contents. Switching to v1/2c for troubleshooting would make it plaintext, but then not exactly apples to apples to now.

Maybe someone will have a more elegant suggestion.

Thank you,


David Zomaya

From: Nut-upsuser <nut-upsuser-bounces+david_zomaya=tripplite.com at alioth-lists.debian.net> on behalf of Lee Damon <nomad at ee.washington.edu>
Sent: Wednesday, April 29, 2020 5:52:11 PM
To: nut-upsuser Mailing List
Subject: Re: [Nut-upsuser] [EXTERNAL] SNMP shutdown timing out

Hi David

On 4/29/20 3:28 PM, David Zomaya wrote:
> Is NUT using the same SNMP v3 user as your SNMP Set or a different one?
> If it is a different one (e.g. an SNMP v1 or v2c string) does that user
> / community string have read/write access?

I tried setting them all with -x thing= arguments as well as letting it
pull from ups.conf, same result. It's all SNMPv3 settings.

sudo snmp-ups -DDDD -a nutdev1 -x secLevel=authPriv -x secName=nut -x
authProtocol=MD5 -x privProtocol=DES -x
authPassword=NutScan at Password43LongerWord -x
privPassword=NutScan at Password43LongerWord -k

The output with -DDDD is the same either way.

> tcpdump to listen for packets across UDP 161 is one way to check what is
> actually being sent.

I guess that really is the next step, isn't it? Darn. I was hoping to
avoid that. Can't do it until Monday, I'm out of time for this project
this week. Thanks for the suggestion.


Nut-upsuser mailing list
Nut-upsuser at alioth-lists.debian.net
This message is for the addressee's use only. It may contain confidential information. If you receive this message in error, please delete it and notify the sender. Tripp Lite disclaims all warranties and liabilities, and assumes no responsibility for viruses which may infect an email sent to you from Tripp Lite and which damage your electronic systems or information. It is your responsibility to maintain virus detection systems to prevent damage to your electronic systems and information.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://alioth-lists.debian.net/pipermail/nut-upsuser/attachments/20200429/f3e94102/attachment.html>

More information about the Nut-upsuser mailing list