MicroNugget: SNMPv3 Cisco Configuration Explained | CBT Nuggets

In this video, CBT Nuggets trainer Jeremy Cioara gives a brief overview of SNMP version 1 and 2, then provides a tutorial on the configuration of SNMP version 3 on Cisco IOS devices. Learn how SNPv3 works with this MicroNugget from CBT Nuggets.

SNMPv3 has been out for years and it’s super secure. But people are slow to pick it up because version 2 is just so easy, even though it lacks almost any security whatsoever.

Plus, go out searching for documentation or guidance about v3 and it feels like it was written to be confusing.

The history of SNMP helps explain why security was the last upgrade. SNMPv2 was really little more than a feature pack upgrade to SNMPv1, which itself was an incredible thing just for existing.

People found SNMP exciting simply because there was finally an open standard to monitor devices. V2 lacked any authentication or encryption methods. It had a community value, but no other security built-in.

V3 has taken a long time to get adopted because it’s a significant protocol change and it takes implementing change on a ton of different devices. But it brought with it the capability to do authentication and encryption.

Watch Jeremy configure a Cisco IOS device for hands-on understanding of SNMP Views, Groups, and Users.

0:30: Comparing SNMPv3 with v1 and v2
1:25: Object Identifiers and Management Information Base
3:30: The three new elements in SNMPv3
3:50: SNMP View explained
4:20: SNMP Group defined
4:50: Configuring SNMP Views and Group
9:15: Configuring SNMP Users
10:40: Adding device(s) to SNMPv3

Start learning with CBT Nuggets:

[xEODGuy]

This was a big help, not just for making SNMP v3 work with a Cisco device, but also for all the other devices I have reporting to PRTG via SNMP. Thank you for the excellent crash course!

[ivantorregroza]

I had about 2 days learning this. I just reviewed in 11:44 minutes with you!! Thanks a lot Jeremy!!!

[MrJayskata]

Now I finally understand SNMP when I am currently dealing with it at work!!! Thanks Jeremy!!!

[predragvasiljevic]

6 years after my ccnp I am looking this video (once more) and it is great!

[SO-tuqj]

Thanks for taking the time to create this. Simplest, most straight forward example I've found on the web.

[minyafication]

Excellent one Jeremy... Loved the way you simplified SNMP functionality.

[veerabsc]

Can’t explain better than this, jermey you’re the best

[kevxd]

I just spent my entire morning reading up SMNP v3 for my switches and you kinda summarize everything into this video and simplified it so much. Thanks for this great video.

[troysipple]

I've came back to this video several times. It's a good one for SMNPv3.

[brianmj]

Man I been looking for an explanation like this for days..THANK YOU!

[rerDevil]

.. and you managed it perfectly as always ... the best cisco trainer ever

[ClaroPires]

Jeremy is the best, by far. Many thanks for this video

[AhmadKhalidNasrat]

can't be better,
very comprehensive
Thanks

[whaleher]

I Feel Like I Finally Get It!!! Thank you so much!

[cbtnuggets]

Daglar, thanks for the question. We recommend asking these types of questions on the CBT Nuggets Forum.

[Yorubaboi]

Hey Jeremy thanks for the clarification, its so clear man!!

[fallofdutee]

Thanks Jeremy, esp the oid site which is a mystery. Useful about group selection of auth/encryption and the choices of them including secret key to generate temp shared keys with user creation. I've seen us use acl too for groups

Jeremy..U r a Network Ninja my friend!!

[OneTonBrute]

Set the speed to 0.5 if you want to hear Jeremy drunk.

[carlapilz]

Thanks a lot! This video is just awesome.