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node-red-node-snmp
A pair of Node-RED nodes that fetch either individual oids, or a table oid from a SNMP enabled host.
Install
Run the following command in your Node-RED user directory - typically ~/.node-red
npm install node-red-node-snmp
Usage
snmp
SNMP oids fetcher. Can fetch a single or comma separated list of oids. Triggered by any input.
msg.host may contain the host.
msg.community may contain the community.
msg.oid may contain a comma separated list of oids to search for. (no spaces)
The host configured in the edit config will override msg.host. Leave blank if you want to use msg.host to provide input.
The community configured in the edit config will override msg.community. Leave blank if you want to use msg.community to provide input.
The oids configured in the edit config will override msg.oid. Leave blank if you
want to use msg.oid to provide input.
Outputs msg.payload containing a table of objects, and the requested msg.oid.
Values depends on the oids being requested.
snmp-set
SNMP sets the value of one or more OIDs.
msg.host may contain the host.
msg.community may contain the community.
msg.varbinds may contain an array of varbind JSON objects e.g.:
msg.varbinds = [
{
"oid": "1.3.6.1.2.1.1.5.0",
"type": "OctetString",
"value": "host1"
}, {
"oid": "1.3.6.1.2.1.1.6.0",
"type": "OctetString",
"value": "somewhere"
}
];
Types can be:
BooleanIntegerOctetStringNullOIDIpAddressCounterGaugeTimeTicksOpaqueInteger32Counter32Gauge32Unsigned32Counter64NoSuchObjectNoSuchInstanceEndOfMibView
The host configured in the edit config will override msg.host. Leave blank if you want to use msg.host to provide input.
The community configured in the edit config will override msg.community. Leave blank if you want to use msg.community to provide input.
The varbinds configured in the edit config will override msg.varbinds. Leave blank if you want to use msg.varbinds to provide input.
snmp-table
Simple SNMP table oid fetcher. Triggered by any input.
msg.host may contain the host.
msg.community may contain the community.
msg.oid may contain the oid of a single table to search for.
The host configured in the edit config will override msg.host. Leave blank if you want to use msg.host to provide input.
The community configured in the edit config will override msg.community. Leave blank if you want to use msg.community to provide input.
The oid configured in the edit config will override msg.oid. Leave blank if you
want to use msg.oid to provide input.
Outputs msg.payload containing the table of objects, and the requested msg.oid.
Values depends on the oids being requested.
snmp-subtree
Simple SNMP oid subtree fetcher. Triggered by any input. Reads from OID specified and any below it.
msg.host may contain the host.
msg.community may contain the community.
msg.oid may contain the oid of a single table to search for.
The host configured in the edit config will override msg.host. Leave blank if you want to use msg.host to provide input.
The community configured in the edit config will override msg.community. Leave blank if you want to use msg.community to provide input.
The oid configured in the edit config will override msg.oid. Leave blank if you
want to use msg.oid to provide input.
Outputs msg.payload containing the table of objects, and the requested msg.oid.
Values depends on the oids being requested.
snmp-walker
Simple SNMP oid walker fetcher. Triggered by any input. Reads from OID specified to the end of the table.
msg.host may contain the host.
msg.community may contain the community.
msg.oid may contain the oid of a single table to search for.
The host configured in the edit config will override msg.host. Leave blank if you want to use msg.host to provide input.
The community configured in the edit config will override msg.community. Leave blank if you want to use msg.community to provide input.
The oid configured in the edit config will override msg.oid. Leave blank if you
want to use msg.oid to provide input.
Outputs msg.payload containing the table of objects, and the requested msg.oid.
Values depends on the oids being requested.