Unsupported SNMP protocol error on Cisco devices
Hello, we have got some problems to add our Cisco routers to the database: Error: nav.Snmp.UnsupportedSnmpVersionError: Unsupported SNMP protocol version: 0 Unfortunately it happens to all our Cisco routers but not the Cisco switches. This Error Notify already occured in your mailling list with the hint: jar -tf /usr/local/nav/lib/java/SimpleSnmp.jar This is our output: nav:~# jar -tf /usr/local/nav/lib/java/SimpleSnmp.jar META-INF/ META-INF/MANIFEST.MF no/ no/ntnu/ no/ntnu/nav/ no/ntnu/nav/SimpleSnmp/ no/ntnu/nav/SimpleSnmp/SimpleSnmp.class no/ntnu/nav/SimpleSnmp/SimpleSnmpHP.class no/ntnu/nav/SimpleSnmp/TimeoutException.class What can we do? We are running actually NAV 3.3.3 with SunJava 1.4.2. Thanks in advance! With kind regards Christian Baensch -- Christian Baensch, Kommunikationssysteme Friedrich-Alexander-Universitaet Erlangen-Nuernberg, Germany Regionales Rechenzentrum Erlangen (RRZE) christian.baensch@rrze.uni-erlangen.de www.rrze.uni-erlangen.de
Hello, I have installed metanav v.3.4.1 on debian 4.0 and continue to test. I have a question regarding an Enterasys ER16, as far as I can tell I have put in the correct snmp community strings but no physical ports have been discovered thus far (metanav running over a week). Can anyone shed some light on this please. Cheers, Liam Cotter. Network Projects Officer, Computer Centre, University College Cork. Ireland. lcotter@cc.ucc.ie
Hi, I found the cause for this, router assigned GW type rather than GSW, all ports now detected. Liam. -----Original Message----- From: Cotter, Liam Sent: 18 August 2008 16:15 To: 'nav-users@uninett.no' Subject: Enterasys ER 16 support Hello, I have installed metanav v.3.4.1 on debian 4.0 and continue to test. I have a question regarding an Enterasys ER16, as far as I can tell I have put in the correct snmp community strings but no physical ports have been discovered thus far (metanav running over a week). Can anyone shed some light on this please. Cheers, Liam Cotter. Network Projects Officer, Computer Centre, University College Cork. Ireland. lcotter@cc.ucc.ie
In my experience, that error usually means that NAV was unable to connect to the router (UDP to port 161). So check the SNMP settings on the router (community, SNMP ACL and so on), and any ACLs between NAV and the router. Regards, Arne Svennevik Network Administrator Norwegian Met.Office -----Original Message----- From: Christian Baensch [mailto:christian.baensch@rrze.uni-erlangen.de] Sent: Monday, August 18, 2008 4:58 PM To: nav-users@uninett.no Subject: Unsupported SNMP protocol error on Cisco devices Hello, we have got some problems to add our Cisco routers to the database: Error: nav.Snmp.UnsupportedSnmpVersionError: Unsupported SNMP protocol version: 0 Unfortunately it happens to all our Cisco routers but not the Cisco switches. This Error Notify already occured in your mailling list with the hint: jar -tf /usr/local/nav/lib/java/SimpleSnmp.jar This is our output: nav:~# jar -tf /usr/local/nav/lib/java/SimpleSnmp.jar META-INF/ META-INF/MANIFEST.MF no/ no/ntnu/ no/ntnu/nav/ no/ntnu/nav/SimpleSnmp/ no/ntnu/nav/SimpleSnmp/SimpleSnmp.class no/ntnu/nav/SimpleSnmp/SimpleSnmpHP.class no/ntnu/nav/SimpleSnmp/TimeoutException.class What can we do? We are running actually NAV 3.3.3 with SunJava 1.4.2. Thanks in advance! With kind regards Christian Baensch -- Christian Baensch, Kommunikationssysteme Friedrich-Alexander-Universitaet Erlangen-Nuernberg, Germany Regionales Rechenzentrum Erlangen (RRZE) christian.baensch@rrze.uni-erlangen.de www.rrze.uni-erlangen.de
On Mon, 18 Aug 2008 16:57:34 +0200 (CEST) Christian Baensch <christian.baensch@rrze.uni-erlangen.de> wrote:
Hello,
Hello Christian.
we have got some problems to add our Cisco routers to the database:
Error: nav.Snmp.UnsupportedSnmpVersionError: Unsupported SNMP protocol version: 0
Unfortunately it happens to all our Cisco routers but not the Cisco switches. This Error Notify already occured in your mailling list with the hint:
jar -tf /usr/local/nav/lib/java/SimpleSnmp.jar
Nah, this is not related at all to your problem. The listed file is a Java library, the error you reported comes from the web interface, which is written in Python.
What can we do? We are running actually NAV 3.3.3 with SunJava 1.4.2.
As Arve Svennevik correctly suggests, this is in reality a timeout error, indicating that your Cisco routers aren't answering NAV's SNMP queries. Check SNMP agent setup on your routers, ACLs etc. If you have net-snmp installed on your NAV server, you can query your routers using command line tools to make sure SNMP access is open for the NAV server. Also, the cryptic error message has been fixed in NAV 3.4.2, so that it now gives a proper timeout-related error message: https://bugs.launchpad.net/nav/+bug/258273 -- mvh Morten Brekkevold UNINETT
participants (4)
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Arne Svennevik -
Christian Baensch -
Cotter, Liam -
Morten Brekkevold