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Today's Topics:
1. SNMP Poll failure (Bavo Seesink)
2. Re: SNMP Poll failure (Oliver Gorwits)
3. question about serial numbers and the 'snmp-server chassis'
command (Sckolnick, Gary)
--- Begin Message ---
Hi,
I have a question.
I`m running into a SNMP question.
I installed netdisco 2.0 onto a new server (CentOS) (clean install).
I`m starting to add devices. But i`m running into a snmp error:
[netdisco@netmgt]$ ~/bin/netdisco-do -D discover -d [ipaddress]
[64003] 2015-01-19 07:17:16 info discover: started at Mon Jan 19 08:17:16 2015
[64003] 2015-01-19 07:17:16 debug [ipaddress] try_connect with ver: 2, class:
SNMP::Info, comm: <hidden>
MIB search path:
Cannot find module (HOST-RESOURCES-MIB): At line 0 in (none)
Cannot find module (HOST-RESOURCES-TYPES): At line 0 in (none)
Cannot find module (UCD-DISKIO-MIB): At line 0 in (none)
Cannot find module (TCP-MIB): At line 0 in (none)
Cannot find module (UDP-MIB): At line 0 in (none)
Cannot find module (MTA-MIB): At line 0 in (none)
Cannot find module (NETWORK-SERVICES-MIB): At line 0 in (none)
Cannot find module (SCTP-MIB): At line 0 in (none)
Cannot find module (RMON-MIB): At line 0 in (none)
Cannot find module (EtherLike-MIB): At line 0 in (none)
Cannot find module (LM-SENSORS-MIB): At line 0 in (none)
Cannot find module (SNMPv2-MIB): At line 0 in (none)
Cannot find module (IF-MIB): At line 0 in (none)
Cannot find module (IP-MIB): At line 0 in (none)
Cannot find module (NOTIFICATION-LOG-MIB): At line 0 in (none)
Cannot find module (DISMAN-EVENT-MIB): At line 0 in (none)
Cannot find module (DISMAN-SCHEDULE-MIB): At line 0 in (none)
Cannot find module (UCD-SNMP-MIB): At line 0 in (none)
Cannot find module (UCD-DEMO-MIB): At line 0 in (none)
Cannot find module (SNMP-TARGET-MIB): At line 0 in (none)
Cannot find module (NET-SNMP-AGENT-MIB): At line 0 in (none)
Cannot find module (SNMP-MPD-MIB): At line 0 in (none)
Cannot find module (SNMP-USER-BASED-SM-MIB): At line 0 in (none)
Cannot find module (SNMP-FRAMEWORK-MIB): At line 0 in (none)
Cannot find module (SNMP-VIEW-BASED-ACM-MIB): At line 0 in (none)
Cannot find module (SNMP-COMMUNITY-MIB): At line 0 in (none)
Cannot find module (IPV6-ICMP-MIB): At line 0 in (none)
Cannot find module (IPV6-MIB): At line 0 in (none)
Cannot find module (IPV6-TCP-MIB): At line 0 in (none)
Cannot find module (IPV6-UDP-MIB): At line 0 in (none)
Cannot find module (IP-FORWARD-MIB): At line 0 in (none)
Cannot find module (NET-SNMP-PASS-MIB): At line 0 in (none)
Cannot find module (NET-SNMP-EXTEND-MIB): At line 0 in (none)
Cannot find module (UCD-DLMOD-MIB): At line 0 in (none)
Cannot find module (SNMP-NOTIFICATION-MIB): At line 0 in (none)
Cannot find module (SNMPv2-TM): At line 0 in (none)
Cannot find module (NET-SNMP-VACM-MIB): At line 0 in (none)
[64003] 2015-01-19 07:17:16 debug [ipaddress] try_connect with ver: 1, class:
SNMP::Info, comm: <hidden>
[64003] 2015-01-19 07:17:16 debug [ipaddress] try_connect with ver: 2, class:
SNMP::Info, comm: <hidden>
[64003] 2015-01-19 07:17:16 debug [ipaddress] try_connect with ver: 1, class:
SNMP::Info, comm: <hidden>
[64003] 2015-01-19 07:17:16 info discover: finished at Mon Jan 19 08:17:16 2015
[64003] 2015-01-19 07:17:16 info discover: status error: discover failed:
could not SNMP connect to [ipaddress]/32
so i looks that the device is unable to read the SNMP from the switch. But when
i do a SNMP walk of that device from the same server to the same switch it
shows me this:
[netdisco@netmgt]$ snmpwalk -v 2c -c [CommunityString] [IP address] sysDescr.0
SNMPv2-MIB::sysDescr.0 = STRING: Cisco IOS Software, C3560 Software
(C3560-IPSERVICESK9-M), Version 12.2(55)SE8, RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2013 by Cisco Systems, Inc.
Compiled Wed 26-Jun-13 11:18 by prod_rel_team
[netdisco@netmgt]$
So wy is netdisco unable to read the switches SNMP info?
Thanks in advanced
System info:
App::Netdisco: 2.030000
DB Schema: v39
Dancer: 1.3132
Bootstrap: 2.3.1
PostgreSQL: PostgreSQL 9.2.7 on x86_64-redhat-linux-gnu, compiled by gcc (GCC)
4.8.2 20140120 (Red Hat 4.8.2-16), 64-bit. DBI 1.633, DBD::Pg 2.19.3
SNMP::Info: 3.23
Perl: 5.016003
--- End Message ---
--- Begin Message ---
Hi Bavo,
Please would you re-run the command with the following environment
variable set:
$ SHOW_COMMUNITY=1 ~/bin/netdisco-do -D discover -d [ipaddress]
This will show the SNMP community Netdisco is using to connect to the
device, and verify that your deployment.yml file is correct.
Also the Cannot Find Module errors are interesting, I don't think they
should be there. Did you run netdisco-deploy as the Netdisco user, and
is ~/netdisco-mibs in place?
regards,
oliver.
On 2015-01-19 08:37, Bavo Seesink wrote:
Hi,
I have a question.
I`m running into a SNMP question.
I installed netdisco 2.0 onto a new server (CentOS) (clean install).
I`m starting to add devices. But i`m running into a snmp error:
[netdisco@netmgt]$ ~/bin/netdisco-do -D discover -d [ipaddress]
[64003] 2015-01-19 07:17:16 info discover: started at Mon Jan 19
08:17:16 2015
[64003] 2015-01-19 07:17:16 debug [ipaddress] try_connect with ver:
2,
class: SNMP::Info, comm: <hidden>
MIB search path:
Cannot find module (HOST-RESOURCES-MIB): At line 0 in (none)
Cannot find module (HOST-RESOURCES-TYPES): At line 0 in (none)
Cannot find module (UCD-DISKIO-MIB): At line 0 in (none)
Cannot find module (TCP-MIB): At line 0 in (none)
Cannot find module (UDP-MIB): At line 0 in (none)
Cannot find module (MTA-MIB): At line 0 in (none)
Cannot find module (NETWORK-SERVICES-MIB): At line 0 in (none)
Cannot find module (SCTP-MIB): At line 0 in (none)
Cannot find module (RMON-MIB): At line 0 in (none)
Cannot find module (EtherLike-MIB): At line 0 in (none)
Cannot find module (LM-SENSORS-MIB): At line 0 in (none)
Cannot find module (SNMPv2-MIB): At line 0 in (none)
Cannot find module (IF-MIB): At line 0 in (none)
Cannot find module (IP-MIB): At line 0 in (none)
Cannot find module (NOTIFICATION-LOG-MIB): At line 0 in (none)
Cannot find module (DISMAN-EVENT-MIB): At line 0 in (none)
Cannot find module (DISMAN-SCHEDULE-MIB): At line 0 in (none)
Cannot find module (UCD-SNMP-MIB): At line 0 in (none)
Cannot find module (UCD-DEMO-MIB): At line 0 in (none)
Cannot find module (SNMP-TARGET-MIB): At line 0 in (none)
Cannot find module (NET-SNMP-AGENT-MIB): At line 0 in (none)
Cannot find module (SNMP-MPD-MIB): At line 0 in (none)
Cannot find module (SNMP-USER-BASED-SM-MIB): At line 0 in (none)
Cannot find module (SNMP-FRAMEWORK-MIB): At line 0 in (none)
Cannot find module (SNMP-VIEW-BASED-ACM-MIB): At line 0 in (none)
Cannot find module (SNMP-COMMUNITY-MIB): At line 0 in (none)
Cannot find module (IPV6-ICMP-MIB): At line 0 in (none)
Cannot find module (IPV6-MIB): At line 0 in (none)
Cannot find module (IPV6-TCP-MIB): At line 0 in (none)
Cannot find module (IPV6-UDP-MIB): At line 0 in (none)
Cannot find module (IP-FORWARD-MIB): At line 0 in (none)
Cannot find module (NET-SNMP-PASS-MIB): At line 0 in (none)
Cannot find module (NET-SNMP-EXTEND-MIB): At line 0 in (none)
Cannot find module (UCD-DLMOD-MIB): At line 0 in (none)
Cannot find module (SNMP-NOTIFICATION-MIB): At line 0 in (none)
Cannot find module (SNMPv2-TM): At line 0 in (none)
Cannot find module (NET-SNMP-VACM-MIB): At line 0 in (none)
[64003] 2015-01-19 07:17:16 debug [ipaddress] try_connect with ver:
1,
class: SNMP::Info, comm: <hidden>
[64003] 2015-01-19 07:17:16 debug [ipaddress] try_connect with ver:
2,
class: SNMP::Info, comm: <hidden>
[64003] 2015-01-19 07:17:16 debug [ipaddress] try_connect with ver:
1,
class: SNMP::Info, comm: <hidden>
[64003] 2015-01-19 07:17:16 info discover: finished at Mon Jan 19
08:17:16 2015
[64003] 2015-01-19 07:17:16 info discover: status error: discover
failed: could not SNMP connect to [ipaddress]/32
so i looks that the device is unable to read the SNMP from the
switch.
But when i do a SNMP walk of that device from the same server to the
same switch it shows me this:
[netdisco@netmgt]$ snmpwalk -v 2c -c [CommunityString] [IP address]
sysDescr.0
SNMPv2-MIB::sysDescr.0 = STRING: Cisco IOS Software, C3560 Software
(C3560-IPSERVICESK9-M), Version 12.2(55)SE8, RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2013 by Cisco Systems, Inc.
Compiled Wed 26-Jun-13 11:18 by prod_rel_team
[netdisco@netmgt]$
So wy is netdisco unable to read the switches SNMP info?
Thanks in advanced
System info:
: 2.030000
DB Schema [1]: v39
Dancer [2]: 1.3132
Bootstrap [3]: 2.3.1
PostgreSQL [4]: PostgreSQL 9.2.7 on x86_64-redhat-linux-gnu, compiled
by gcc (GCC) 4.8.2 20140120 (Red Hat 4.8.2-16), 64-bit. DBI 1.633,
DBD::Pg 2.19.3
SNMP::Info [5]: 3.23
Perl [6]: 5.016003
Links:
------
[1] https://metacpan.org/module/netdisco-db-deploy
[2] http://http//perldancer.org/
[3] http://getbootstrap.com/
[4] http://www.postgresql.org/
[5] http://snmp-info.sourceforge.net/
[6] http://www.perl.org/
--- End Message ---
--- Begin Message ---
Hello. We've noticed, comparing the latest Netdisco v2 to our existing ND1
implementation, that where ND1 was able to retrieve the correct serial number
for a given Cisco switch, ND2 will not retrieve the serial number, but rather
the value configured with the snmp-server chassis command, if one is set.
Since some of our switches are configured with snmp-server chassis <asset tag>,
ND2 reports this asset tag as the serial number of the switch; ND1 reports the
switch's actual serial number. What's even more curious is that we're not sure
where this is coming from, because a full snmpwalk of the switch does produce
the <asset tag> value.
Any ideas?
________________________
Gary Sckolnick
Network Engineer
Information Services
(802) 847-2541
gary.sckoln...@uvmhealth.org
The University of Vermont Medical Center
UVMHealth.org/MedCenter
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