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Sam Machin 2d28a2304f Update package.jsons for mono-repo (#851 ) Update the package.json for each node to point to the directory within the repo that hosts the code for the package in question. as per https://docs.npmjs.com/cli/v7/configuring-npm/package-json#repository		2021-11-02 15:22:30 +00:00
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LICENSE	Update licenses and packages for all nodes	2016-11-06 20:26:19 +00:00
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README.md	add some words to snmp info/readme	2020-08-06 18:10:09 +01:00
snmp.html	add some words to snmp info/readme	2020-08-06 18:10:09 +01:00
snmp.js	snmp set Add check if varbinds field may be empty	2019-11-06 09:30:46 +00:00

README.md

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:

Boolean
Integer
OctetString
Null
OID
IpAddress
Counter
Gauge
TimeTicks
Opaque
Integer32
Counter32
Gauge32
Unsigned32
Counter64
NoSuchObject
NoSuchInstance
EndOfMibView

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.