lahell/snmpv3

PowerShell Module for SNMPv3

snmpv3's Issues

Exception calling "BulkWalk" with "11" argument(s): "Request timed out after 3000-ms."

Exception calling "BulkWalk" with "11" argument(s): "Request timed out after 3000-ms."
At C:\Program Files\WindowsPowerShell\Modules\SNMPv3\1.1.2\Public\Invoke-SNMPv3Walk.ps1:139
char:5

• [Lextm.SharpSnmpLib.Messaging.Messenger]::BulkWalk(
  

• ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  

  • CategoryInfo : NotSpecified: (:) [], MethodInvocationException
  • FullyQualifiedErrorId : TimeoutException

It seems to work for short invokes, but I'm doing about 100+ invoke-snmpv3walk

SHould I be placing a pause in between the invokes?

Unable to use ip addresses

Hi, when i want to use ip addresses instead of hostnames, i receive the message unknown host. when i use the hostname (which contains the same ip address) everything is going fine. Is this something that you can fix?

Thank you in advance!

Best regards,

Remon Willems

Problem with octetstring encoding

Good day!
Faced with trouble walk or get oids like ipNetToMediaPhysAddress (1.3.6.1.2.1.4.22.1.2) expecting raw value data, but getting value like ?#?f?? that looks like ASCII encoding substitutes characters outside its valid range with a question mark "?"

Some OctetString string incorrectly decoded?

For OctetString values containing plain text correct output is shown:

PS C:\Users\Administrator> Invoke-SNMPv3Walk @walkRequest -OID 1.3.6.1.2.1.31.1.1.1.1

Node        OID                              Type Value
----        ---                              ---- -----
172.16.22.1 1.3.6.1.2.1.31.1.1.1.1.1  OctetString mgmt
172.16.22.1 1.3.6.1.2.1.31.1.1.1.1.2  OctetString ha
172.16.22.1 1.3.6.1.2.1.31.1.1.1.1.3  OctetString port1

But for OctetString values containing MAC addresses incorrect output is shown:

PS C:\Users\Administrator> Invoke-SNMPv3Walk @walkRequest -OID 1.3.6.1.2.1.4.22.1.2

Node        OID                                          Type Value
----        ---                                          ---- -----
172.16.22.1 1.3.6.1.2.1.4.22.1.2.1.172.16.22.2    OctetString  PV?�/
172.16.22.1 1.3.6.1.2.1.4.22.1.2.2.169.254.0.1    OctetString ?q.Bv4

PS C:\Users\Administrator> Invoke-SNMPv3Walk @walkRequest -OID 1.3.6.1.2.1.4.22.1.2

Node        OID                                         Type Value
----        ---                                         ---- -----
172.16.22.4 1.3.6.1.2.1.4.22.1.2.78.172.16.22.1  OctetString    �       ��
172.16.22.4 1.3.6.1.2.1.4.22.1.2.78.172.16.22.2  OctetString  PV?�/

Is it a bug or is it by design?

NotInTimeWindow after second GetResponse with authentication

While using authentication, the second send of GetResponse just do exactly the same whereas this should set in parameters "msgAuthoritativeEngineBoots" and "msgAuthoritativeEngineTime".

The second send should use the last report, the one returned by the the first GetResponse.
So your code is good, there's just a little mistake.

At this line:

SNMPv3/SNMPv3/Public/Invoke-SNMPv3Get.ps1

Line 175 in 0917196

$Report

It should be "$Reply", not "$Report"

Since the reply has been identified as a Report:

SNMPv3/SNMPv3/Public/Invoke-SNMPv3Get.ps1

Line 149 in 0917196

if ($Reply -is [Lextm.SharpSnmpLib.Messaging.ReportMessage])

we should use this newer report stored in $Reply

SNMPv3Set value type OctectStrings missing

Hello,

When polling a value, i often get an OctetString value back:

Node         OID                                Type Value
----         ---                                ---- -----
11.11.11.11  1.3.6.1.4.1.45391.1.1.1.2.0 OctetString GA1049

When I try to overwrite that value, the OctetString type is not available in choices:

Trying to push that value as string does not yield any error, but the device does not change the value (although that OID is writable).

$siteid = [Lextm.SharpSnmpLib.OctetString]::new('XY999') does not do the trick either.

Am I missing something? If not, would it be possible to add the OctetString type to the list?

Thanks :)

Catch exceptions for authentication failure?

Is there anyway to record auth failures? Id like to script a conditional statement for handling failures or successes, but it doesnt seem this can be easily stored in a variable, and the "Warning message" that gets written to the console doesnt log an entry in $error. Any ideas?

Exception calling "BulkWalk" with "11" argument(s): "Value cannot be null.

PS C:\Users\me\Desktop>> $WalkRequest = @{
    UserName   = 'myuser
    Target     = '10.52.42.15'
    OID        = '1.3.6.1.2.1.1'
    AuthType   = 'SHA1'
    AuthSecret = 'abcdefg
    PrivType   = 'AES128'
    PrivSecret = 'hijklmnop'
}

Invoke-SNMPv3Walk @WalkRequest
Exception calling "GetResponse" with "2" argument(s): "Request timed out after 3000-ms."
At C:\Program Files\WindowsPowerShell\Modules\SNMPv3\1.1.2\Public\Invoke-SNMPv3Walk.ps1:135 char:5
+     $Report = $Discovery.GetResponse($Timeout, $IPEndPoint)
+     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : TimeoutException
 
Exception calling "BulkWalk" with "11" argument(s): "Value cannot be null.
Parameter name: report"
At C:\Program Files\WindowsPowerShell\Modules\SNMPv3\1.1.2\Public\Invoke-SNMPv3Walk.ps1:139 char:5
+     [Lextm.SharpSnmpLib.Messaging.Messenger]::BulkWalk(
+     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : ArgumentNullException

Whatever I do. Either walk or get the same "bulk" error appears.