'\" t
.\"     Title: snmp-ups
.\"    Author: [see the "AUTHORS" section]
.\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/>
.\"      Date: 08/08/2025
.\"    Manual: NUT Manual
.\"    Source: Network UPS Tools 2.8.4
.\"  Language: English
.\"
.TH "SNMP\-UPS" "8" "08/08/2025" "Network UPS Tools 2\&.8\&.4" "NUT Manual"
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.SH "NAME"
snmp-ups \- Multi\-MIB Driver for SNMP UPS equipment
.SH "SYNOPSIS"
.sp
\fBsnmp\-ups\fR \-h
.sp
\fBsnmp\-ups\fR \-a \fIUPS_NAME\fR [\fIOPTIONS\fR]
.if n \{\
.sp
.\}
.RS 4
.it 1 an-trap
.nr an-no-space-flag 1
.nr an-break-flag 1
.br
.ps +1
\fBNote\fR
.ps -1
.br
.sp
This man page only documents the hardware\-specific features of the snmp\-ups driver\&. For information about the core driver, see \fBnutupsdrv\fR(8)\&.
.sp .5v
.RE
.SH "SUPPORTED HARDWARE"
.sp
The snmp\-ups driver automatically detects and supports a wide range of devices by loading various MIBS, such as:
.PP
\fBietf\fR
.RS 4
UPS that is RFC 1628 (UPS MIB) compliant, e\&.g\&. MGE UPS SYSTEMS, Liebert, perhaps others (default)
.RE
.PP
\fBmge\fR
.RS 4
MGE UPS SYSTEMS and MGE Office Protection Systems devices with SNMP cards (ref 66062, 66045, 66074 and 66244)
.RE
.PP
\fBapcc\fR
.RS 4
APC AP9605, AP9606, AP9617, and AP9618 APC network management cards, as well as any others supporting the APC POWERNET MIB
.RE
.PP
\fBnetvision\fR
.RS 4
Socomec Sicon UPS with Netvision Web/SNMP management card/external box
.RE
.PP
\fBeaton_pw_nm2\fR
.RS 4
Powerware devices with ConnectUPS SNMP cards, as well as UPSes with Eaton Gigabit Network Cards (Network\-M2) (renamed from pw)
.RE
.PP
\fBeaton_pxg_ups\fR
.RS 4
Eaton devices with Power Xpert Gateway UPS Card (renamed from pxgx_ups)
.RE
.PP
\fBaphel_genesisII\fR
.RS 4
Eaton Powerware ePDU Monitored
.RE
.PP
\fBaphel_revelation\fR
.RS 4
Eaton Powerware ePDU Managed
.RE
.PP
\fBraritan\fR
.RS 4
Various Raritan PDUs (Dominion PX, PM, RPC)
.RE
.PP
\fBraritan\-px2\fR
.RS 4
Various Raritan PDUs (Dominion PX2)
.RE
.PP
\fBbaytech\fR
.RS 4
Various BayTech PDUs
.RE
.PP
\fBcpqpower\fR
.RS 4
HP/Compaq AF401A management card, perhaps others
.RE
.PP
\fBcyberpower\fR
.RS 4
Cyberpower RMCARD201\&. Should also support RMCARD100 (net version), RMCARD202 and RMCARD301
.RE
.PP
\fBhuawei\fR
.RS 4
Huawei UPS5000\-E, perhaps others
.RE
.PP
\fBtripplite\fR
.RS 4
TrippLite UPSes; at this time this is the IETF MIB mapping with just the Tripplite entry point OID to verify the device vendor, and a real hardware\-specific configuration will be added in the future development\&.
.RE
.sp
For a complete and up\-to\-date listing, you can query the driver by passing the \fBmibs=\-\-list\fR argument (see below)\&.
.SH "EXTRA ARGUMENTS"
.sp
This driver supports the following optional settings in the \fBups.conf\fR(5):
.PP
\fBport\fR=\fIhostname[:port]\fR
.RS 4
Set SNMP hostname, or IP address, and port number of the peer SNMP agent\&. There is no default for the hostname, but the default port is 161\&.
.RE
.PP
\fBmibs\fR=\fI\-\-list\fR
.RS 4
A special option which allows to list the currently known MIB\-to\-NUT mappings and exit the driver binary, intended for command\-line usage like this:
.sp
.if n \{\
.RS 4
.\}
.nf
:; snmp\-ups \-a snmp\-test \-x mibs=\-\-list
.fi
.if n \{\
.RE
.\}
.RE
.PP
\fBmibs\fR=\fIname\fR
.RS 4
Set MIB compliance (default=\fIauto\fR, allowed entries: refer to SUPPORTED HARDWARE above)\&.
.sp
With "auto", the driver will try a select set of SNMP objects until it finds one that the device responds to\&.
.sp
Note that since NUT 2\&.6\&.2, snmp\-ups has a new method that uses
sysObjectID
(which is a pointer to the preferred MIB of the device) to detect supported devices\&. This renders void the
\fBrequirement\fR
to use the "mibs" option\&.
.RE
.PP
\fBcommunity\fR=\fIname\fR
.RS 4
Set community name (default is
\fIpublic\fR) for SNMPv1 and SNMPv2c connections\&. Note that an RW capable community name is required to change UPS settings and send commands (such as for a power\-down)\&.
.RE
.PP
\fBsnmp_version\fR=\fIversion\fR
.RS 4
Set SNMP version (default = v1, allowed: v2c, v3)
.RE
.PP
\fBsnmp_retries\fR=\fIretries\fR
.RS 4
Specifies the number of Net\-SNMP retries to be used in the requests (default=5)
.RE
.PP
\fBsnmp_timeout\fR=\fItimeout\fR
.RS 4
Specifies the Net\-SNMP timeout in seconds between retries (default=1)
.RE
.PP
\fBsymmetrathreephase\fR
.RS 4
Enable APCC three phase Symmetra quirks (use on APCC three phase Symmetras): Convert from three phase line\-to\-line voltage to line\-to\-neutral voltage (default: not enabled)
.RE
.PP
\fBpollfreq\fR=\fInum\fR
.RS 4
Set polling interval for full updates, in seconds, to reduce SNMP network traffic relative to the quick updates performed every "pollinterval" (the latter option is described in
\fBups.conf\fR(5))\&. The default value is 30 (in seconds)\&.
.RE
.PP
\fBnotransferoids\fR
.RS 4
Disable the monitoring of the low and high voltage transfer OIDs in the hardware\&. This will remove input\&.transfer\&.low and input\&.transfer\&.high from the list of variables\&. This should only be used on APCC Symmetra equipment which has strangeness in the three\-phase power reporting\&.
.RE
.PP
\fBsecLevel\fR=\fIvalue\fR
.RS 4
Set the securityLevel used for SNMPv3 messages (default=noAuthNoPriv, allowed: authNoPriv,authPriv) This parameter is mandatory if you use non\-trivial authentication\&.
.RE
.PP
\fBsecName\fR=\fIvalue\fR
.RS 4
Set the securityName used for authenticated SNMPv3 messages (no default)
.RE
.PP
\fBauthPassword\fR=\fIvalue\fR
.RS 4
Set the authentication pass phrase used for authenticated SNMPv3 messages (no default)
.RE
.PP
\fBprivPassword\fR=\fIvalue\fR
.RS 4
Set the privacy pass phrase used for encrypted SNMPv3 messages (no default)
.RE
.PP
\fBauthProtocol\fR=\fIvalue\fR
.RS 4
Set the authentication protocol (MD5, SHA, SHA256, SHA384 or SHA512) used for authenticated SNMPv3 messages (default=MD5)\&. Note that the exact protocol list depends on Net\-SNMP library capabilities; check help of the
snmp\-ups
binary program for the run\-time supported list\&.
.RE
.PP
\fBprivProtocol\fR=\fIvalue\fR
.RS 4
Set the privacy protocol (DES, AES, AES192 or AES256) used for encrypted SNMPv3 messages (default=DES)\&. Note that the exact protocol list depends on Net\-SNMP library capabilities; check help of the
snmp\-ups
binary program for the run\-time supported list\&.
.RE
.SH "REQUIREMENTS"
.sp
You will need to install the Net\-SNMP package from http://www\&.net\-snmp\&.org/ before building this driver\&.
.sp
SNMP v3 also requires OpenSSL support from http://www\&.openssl\&.org\&.
.SH "LIMITATIONS"
.SS "Shutdown"
.sp
The shutdown sequence should be tested before relying on NUT to send a shutdown command to the UPS\&. The problem is that the host network stack may have been torn down by the time the driver is invoked to send the shutdown command\&. The driver attempts to send shutdown\&.return, shutdown\&.reboot, and load\&.off\&.delay commands to the UPS in sequence, stopping after the first supported command\&.
.SS "Using host names for UPS NMC"
.sp
An UPS network management card may be assigned a fixed/static IP address or a dynamic one (e\&.g\&. by DHCP) in your network\&. Due to this, you may want or have to use a dynamic naming service to access the UPS\&. Note that this may become a problem specifically during large outages and shutdowns, when your DHCP/DNS server might already go down while the driver needs to resolve the name involved (especially during late\-shutdown hooks, when a new instance of the driver program might start just to tell the UPS to power off or to power\-cycle)\&.
.sp
It may be wise to ensure your OS name service client can cache the UPS name sufficiently long, or to use fixed IP addressing (and an entry in /etc/hosts for good measure, so you only have one spot to eventually re\-configure this)\&.
.SH "INSTALLATION"
.sp
This driver is only built if the Net\-SNMP development files are present at configuration time\&. You can also force it to be built by using configure \-\-with\-snmp=yes before calling make\&.
.SH "EXAMPLES"
.sp
The hostname of the UPS is specified with the "port" value in ups\&.conf, and may include a non\-standard (161) remote peer port:
.sp
.if n \{\
.RS 4
.\}
.nf
        [snmpv1]
                driver = snmp\-ups
                port = snmp\-ups\&.example\&.com
                community = public
                snmp_version = v1
                pollfreq = 15
                desc = "Example SNMP v1 device"

        [snmpv3]
                driver = snmp\-ups
                port = 166\&.99\&.224\&.132:170
                snmp_version = v3
                secLevel = authPriv
                secName = mysecurityname
                authPassword = myauthenticationpassphrase
                privPassword = myprivatepassphrase
                desc = "Example SNMP v3 device, with the highest security level"
.fi
.if n \{\
.RE
.\}
.SH "AUTHORS"
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
Arnaud Quette
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
Dmitry Frolov
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
Jim Klimov
.RE
.SH "SEE ALSO"
.SS "The core driver:"
.sp
\fBnutupsdrv\fR(8)
.SS "NUT SNMP Protocols Library"
.sp
Available at: https://www\&.networkupstools\&.org/ups\-protocols\&.html#_snmp
.SS "Internet resources:"
.sp
The NUT (Network UPS Tools) home page: https://www\&.networkupstools\&.org/historic/v2\&.8\&.4/