---
name: "SNMP::Info::Layer3::NetSNMP"
section: "3pm"
platform: "linux"
package: "libsnmp-info-perl"
version: "3.972002-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/SNMP::Info::Layer3::NetSNMP"
---

# SNMP::Info::Layer3::NetSNMP(3pm)

SNMP Interface to L3 Net-SNMP Devices

## NAME

SNMP::Info::Layer3::NetSNMP - SNMP Interface to L3 Net-SNMP Devices

## AUTHORS

Bradley Baetz and Bill Fenner

## SYNOPSIS

```
 # Let SNMP::Info determine the correct subclass for you.
 my $netsnmp = new SNMP::Info(
                          AutoSpecify => 1,
                          Debug       => 1,
                          DestHost    => 'myrouter',
                          Community   => 'public',
                          Version     => 2
                        )
    or die "Can't connect to DestHost.\n";
 my $class      = $netsnmp->class();
 print "SNMP::Info determined this device to fall under subclass : $class\n";
```

## DESCRIPTION

Subclass for Generic Net-SNMP devices

### Inherited Classes

- SNMP::Info::Layer3

  ### Required MIBs

- *UCD-SNMP-MIB*

  - *NET-SNMP-TC*

  - *HOST-RESOURCES-MIB*

  - Inherited Classes' MIBs

  See SNMP::Info::Layer3 for its own MIB requirements.

## GLOBALS

These are methods that return scalar value from SNMP

- $netsnmp-\>**vendor()**

  Returns 'Net-SNMP'.

- $netsnmp-\>**os()**

  Returns the OS extracted from `"sysDescr"`.

- $netsnmp-\>**os\_ver()**

  Returns the software version extracted from `"sysDescr"`, along with the Net-SNMP version.

- $netsnmp-\>**uptime()**

  Returns the system uptime instead of the agent uptime. NOTE: discontinuity timers and other Time Stamp based objects are based on agent uptime, so use **orig\_uptime()**.

- $netsnmp-\>**serial()**

  Returns ''.

### Globals imported from SNMP::Info::Layer3

See documentation in SNMP::Info::Layer3 for details.

## TABLE ENTRIES

These are methods that return tables of information in the form of a reference to a hash.

### Overrides

- $netsnmp-\>**i\_ignore()**

  Returns reference to hash.  Increments value of IID if port is to be ignored.

  Ignores loopback

### Table Methods imported from SNMP::Info::Layer3

See documentation in SNMP::Info::Layer3 for details.

## NOTES

In order to cause SNMP::Info to classify your device into this class, it may be necessary to put a configuration line into your *snmpd.conf* similar to

```
  sysobjectid .1.3.6.1.4.1.8072.3.2.N
```

where N is the object ID for your OS from the `"NET-SNMP-TC"` MIB (or 255 if not listed).  Some Net-SNMP installations default to an incorrect return value for `"system.sysObjectId"`.

In order to recognize a Net-SNMP device as Layer3, it may be necessary to put a configuration line similar to

```
  sysservices 76
```

in your *snmpd.conf*.