LinuxQuestions.org
Latest LQ Deal: Complete CCNA, CCNP & Red Hat Certification Training Bundle
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Networking
User Name
Password
Linux - Networking This forum is for any issue related to networks or networking.
Routing, network cards, OSI, etc. Anything is fair game.

Notices


Reply
  Search this Thread
Old 08-07-2018, 11:56 AM   #1
vinmansbrew
LQ Newbie
 
Registered: Feb 2016
Posts: 28

Rep: Reputation: Disabled
mrtg and snmp v3 setup


Ok, so I tried to get a possible answer for this, post is here:
https://www.linuxquestions.org/quest...v3-4175634900/
I know, this is a second post, but maybe this belongs here, as opposed to software.

Anyways, mrtg with snmp v2c works fine. Basically, using mrtg on a server, to track router traffic.
Network admin wants to change to snmp v3. So, supposedly the test router is set up to use snmp v3.
So, now I am trying to re-write the cfgmaker command so that it will work on on 3 instead of 2c.

Currently, my command stands as such:

snmpwalk -v3 -l authPriv -u "username" -a SHA -A "shapass" -x AES -X "password" routerip

Packets do get to the router and back, so firewall port is open.
The return error is:
no log handling enabled - turn on stderr logging.
snmpwalk: Unsupported security level.

Now, logging might help, but I haven't found how to turn it on for this.
The unsupported security level makes me thing it is something on the router config.

Prior to this, the mrtg server on had snmp libraries installed, I did install the rest of snmp 5.5
I have not made any sort of change to snmpd.conf, as there was none for snmp v2c, so I didn't think it was needed for v3. Maybe?

Anyone have an idea?

Thanks!
 
Old 08-10-2018, 08:36 AM   #2
Ser Olmy
Senior Member
 
Registered: Jan 2012
Distribution: Slackware
Posts: 2,507

Rep: Reputation: Disabled
The router wouldn't by any chance happen to be a Cisco device?
 
Old 08-10-2018, 08:42 AM   #3
vinmansbrew
LQ Newbie
 
Registered: Feb 2016
Posts: 28

Original Poster
Rep: Reputation: Disabled
I haven't seen it myself, but I can almost guarantee it is a cisco device.
 
Old 08-10-2018, 08:51 AM   #4
Ser Olmy
Senior Member
 
Registered: Jan 2012
Distribution: Slackware
Posts: 2,507

Rep: Reputation: Disabled
In that case, if you follow the link you'll see there's a bug related to SNMPv3 and usernames over a certain length.
 
Old 08-10-2018, 09:37 AM   #5
vinmansbrew
LQ Newbie
 
Registered: Feb 2016
Posts: 28

Original Poster
Rep: Reputation: Disabled
Yeah, I saw that, but the username is not long enough to be an issue. If only it were that easy!
 
Old 08-10-2018, 09:41 AM   #6
Ser Olmy
Senior Member
 
Registered: Jan 2012
Distribution: Slackware
Posts: 2,507

Rep: Reputation: Disabled
Then you need to check the privilege level of the user on the router itself.
 
Old 08-10-2018, 09:49 AM   #7
vinmansbrew
LQ Newbie
 
Registered: Feb 2016
Posts: 28

Original Poster
Rep: Reputation: Disabled
That's about what I thought. I've been trying to work with the network guy on this, but communication is slow. I am also having him look into the contextengineid to make sure I have the right one.

I have been able to get the snmpwalk to work now, and parses the BGP route tables. So now it is just getting the cfgmaker command to work. So, I would have to concur that it is probably a setting on the router.
 
  


Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off



Similar Threads
Thread Thread Starter Forum Replies Last Post
I want to setup MRTG and SNMP On SUSE sothy Linux - Networking 1 03-06-2006 10:02 PM
snmp-mrtg ahmed4linux Linux - General 1 11-03-2004 08:27 AM
Linksys, SNMP and mrtg Kyanos Linux - Software 2 03-19-2004 11:05 PM
help with mrtg and snmp cristi1979 Linux - Networking 1 06-24-2003 09:49 PM
Snmp/mrtg hydro Linux - Software 1 06-15-2003 10:39 AM

LinuxQuestions.org > Forums > Linux Forums > Linux - Networking

All times are GMT -5. The time now is 06:03 AM.

Main Menu
Advertisement
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration