Smart snmpwalk tool

Along with SNMPv3 security features,Unbrowse R 1.5 also includes a new tool for performing SNMP walks. We call it the “Raw SNMP Walker”.

This is a free feature (i.e. it will continue to work after the 30 day trial period). To continue using other Power Features you need to purchase a license.

rawwalk.JPG

 

What it does

  1. Allows you to enter strings and OIDs as part of the subtree index
  2. Allows you to enter partial indexes (eg, only specify the first index for a table that has two indexes)
  3. Color code the output
  4. Remember last walked object (a time saver)
  5. Full OID to name translation
  6. Translate all enumerated values
  7. Handle all the IMPLIED and non IMPLIED index clauses behind the scenes. You just have to compile in the MIBs or import prebuilt MIB Packages from our site.

To start

  1. Press Ctrl+W (or select Tools->Raw SNMP Walker)
  2. Select an agent from the drop down
  3. Enter oid to start walking (enter strings as strings, oids as names)
  4. Press Start
  5. Select the output (Ctrl+A), copy / paste to notepad or wordpad (if you want to retain the color coded output)

 

 

Accepted formats

  1. Full OID : .1.3.6.1.2.1.2.2.1
  2. Name :  usmUserTable
  3. Name Index : myObject.7.7.astringindex.anotherstring
  4. OID Index : vacmViewTreeFamilyTable.MyView.usmMIBObjects
  5. Quoted String : myTable.8.”mysting.with.dots”.status
  6. Quoted OID : myTable.8.”.1.3.6.1.4″.status

Hope this tool saves time and effort for you. Send us your comments.

[tags] snmp, mib browser, snmpwalk, mibs[/tags]

Using NetSNMP with SNMPv3 USM and VACM

We just released Unbrowse SNMP 1.5 today ! 

R1.5 features support for managing SNMPv3 users and views in a very easy to use manner. You do not have to worry about underlying MIB tables and such. Everything is visual, including management of MIB views.

A few people have expressed a desire to use Unbrowse to work with USM and VACM in Net-SNMP based agents. We already talked in detail about an issue with Net-SNMP (Release 5.4) and VACM in this post.

We submitted two patches to the Net-SNMP open source project. It may take a while for them to get accepted. In the meantime, please apply these patches yourself.

Please leave a comment here (or email us ) if you want help with applying these patches.

[tags] snmpv3, USM, VACM, security, Net-SNMP [/tags]

Getting netsnmp ready for VACM

We are working on some cool SNMPv3 security features for the upcoming Unbrowse SNMP R1.5 release. Among other things, you can create users, restrict their access, change their passwords, just as you would a on your website or computer. All gory details of USM / VACM are hidden away.

I was running some tests with our beta build against a net-snmp server on a Fedora (FC5) box. I found several issues before getting netsnmp to respond to VACM correctly.  I hope this post helps folks who want to move completely to SNMPv3 (completely disabling the insecure SNMPv1 and SNMPv2).

Continue reading “Getting netsnmp ready for VACM”