?
Solved

Question On SNMP Versioning

Posted on 2009-12-21
1
Medium Priority
?
357 Views
Last Modified: 2013-12-16
Hi,

I have a question regarding how SNMP running on a host would respond to a SNMP query that was send from a client using a different version of SNMP.

More specifically, what I would like to know is this: If I query a host with this command:
]# snmpget -v 1 -c neverland x.x.x.x .1.3.6.1.2.1.1.1.0, and receive the following reply:
SNMPv2-MIB::sysDescr.0 = STRING: IBM PowerPC CHRP Computer
Machine Type: 0x0800004c Processor id: 000C74CD4C00
Base Operating System Runtime AIX version: 05.02.0000.0050
TCP/IP Client Support version: 05.02.0000.0075

would that indicate that the host is running version 1? I thought since I specified version 1 in my query, only a system running SNMP version 1 would respond. Though I see in the reply, it states it is using the SNMPv2-MIB. Will different version respond to each other, or do they need to be the same?

Thanks,
Jeff
0
Comment
Question by:jpetter
1 Comment
 
LVL 10

Accepted Solution

by:
lanboyo earned 2000 total points
ID: 26101418
snmp v1 is a subset of snmp ver 2.  - Much of that reply however is supplied by the snmp MIB installed on the box you are querying from... If you specify version 1 and supply a ver 2 OID, then it will probably do an snmp version 2 query.

But a lot of devices running 1 are actually running 1.5, which is prety much v2...

Community-Based Simple Network Management Protocol version 2, or SNMPv2c, is defined in RFC 1901RFC 1908. In its initial stages, this was also informally known as SNMP v1.5. SNMP v2c comprises SNMP v2 without the controversial new SNMP v2 security model, using instead the simple community-based security scheme of SNMP v1. While officially only a "Draft Standard", this is widely considered the de facto SNMP v2 standard.
0

Featured Post

Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Join Greg Farro and Ethan Banks from Packet Pushers (http://packetpushers.net/podcast/podcasts/pq-show-93-smart-network-monitoring-paessler-sponsored/) and Greg Ross from Paessler (https://www.paessler.com/prtg) for a discussion about smart network …
This article will show you step-by-step instructions to build your own NTP CentOS server.  The network diagram shows the best practice to setup the NTP server farm for redundancy.  This article also serves as your NTP server documentation.
NetCrunch network monitor is a highly extensive platform for network monitoring and alert generation. In this video you'll see a live demo of NetCrunch with most notable features explained in a walk-through manner. You'll also get to know the philos…
Monitoring a network: how to monitor network services and why? Michael Kulchisky, MCSE, MCSA, MCP, VTSP, VSP, CCSP outlines the philosophy behind service monitoring and why a handshake validation is critical in network monitoring. Software utilized …
Suggested Courses
Course of the Month16 days, 5 hours left to enroll

850 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question