snmp3_real_walk

(PHP 4, PHP 5, PHP 7, PHP 8)

snmp3_real_walkReturn all objects including their respective object ID within the specified one

Description

snmp3_real_walk(
    string $hostname,
    string $security_name,
    string $security_level,
    string $auth_protocol,
    string $auth_passphrase,
    string $privacy_protocol,
    string $privacy_passphrase,
    array|string $object_id,
    int $timeout = -1,
    int $retries = -1
): array|false

The snmp3_real_walk() function is used to traverse over a number of SNMP objects starting from object_id and return not only their values but also their object ids.

Parameters

hostname

The hostname of the SNMP agent (server).

security_name

the security name, usually some kind of username

security_level

the security level (noAuthNoPriv|authNoPriv|authPriv)

auth_protocol

the authentication protocol (MD5 or SHA)

auth_passphrase

the authentication pass phrase

privacy_protocol

the authentication protocol ("MD5", "SHA", "SHA256", or "SHA512")

privacy_passphrase

the privacy pass phrase

object_id

The SNMP object id.

timeout

The number of microseconds until the first timeout.

retries

The number of times to retry if timeouts occur.

Return Values

Returns an associative array of the SNMP object ids and their values on success or false on error. In case of an error, an E_WARNING message is shown.

Changelog

Version Description
8.1.0 The auth_protocol now accepts "SHA256" and "SHA512" when supported by libnetsnmp.

Examples

Example #1 Using snmp3_real_walk()

<?php
var_export
(snmp3_real_walk('localhost', 'james', 'authPriv', 'SHA', 'secret007', 'AES', 'secret007', 'IF-MIB::ifName'));
?>

The above will output something like:

array (
  'IF-MIB::ifName.1' => 'STRING: lo',
  'IF-MIB::ifName.2' => 'STRING: eth0',
  'IF-MIB::ifName.3' => 'STRING: eth2',
  'IF-MIB::ifName.4' => 'STRING: sit0',
  'IF-MIB::ifName.5' => 'STRING: sixxs',
)

See Also

  • snmpwalk() - Fetch all the SNMP objects from an agent

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User Contributed Notes 1 note

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2
Anonymous
11 years ago
Use this function for debug snmp-connection.

<?php
error_reporting
(8191);
date_default_timezone_set('Europe/Moscow');
ini_set('display_errors',1);

snmp_test_connection('12.34.56.78', 'guest', 'guest')

function
snmp_test_connection($ip, $user, $pass){
   
$a = array('noAuthNoPriv','authNoPriv','authPriv');
   
$b = array('MD5','SHA');
   
$c = array('DES','AES');

   
$branch    = '.1.3.6.1.2.1.1.3'; // upTime

   
foreach($a as $aPriv)
        foreach(
$b as $bProt)
            foreach(
$c as $cPrivProt){
                echo
'time = '.date('Y-m-d H:i:s').'<br/>';
                echo
'<b>sec_level=</b>'.$aPriv.'<br/><b>auth_protocol=</b>'.$bProt.'<br/><b>priv_protocol=</b>'.$cPrivProt.'<br/>Request = ';
               
var_dump(
                   
snmp3_real_walk($ip, $user, $aPriv, $bProt, $pass, $cPrivProt, $pass, $branch)
                );
            }
}

?>
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