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Today's Topics:
1. Re: K?ndigung (Sebastian R?sch)
2. Problem discovering existing device (Nikolaos Milas)
3. Re: Problem discovering existing device (Christian Ramseyer)
4. Multiple device plugin formatting problem (Brian Marshall)
5. Re: Problem discovering existing device (Nikolaos Milas)
6. netdisco version 2.033004 (Dwayne Hottinger)
7. 4500x (Dwayne Hottinger)
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Regards
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--- Begin Message ---
Hello,
I have a Cisco 2960 switch, which was known to NetDisco using a public
address assigned to its vlan1 (default) interface, even though the
device also had a second private address at vlan10 (the default gateway
is on vlan10).
However, we have now removed the vlan1 ip address, but NetDisco refuses
to discover the switch using its vlan10 address (10.201.0.15), always
trying to communicate through the initial vlan1 address (195.251.202.2):
$ ~/bin/netdisco-do discover -D -d 10.201.0.15
[28389] 2016-01-12 13:46:25 info discover: started at Tue Jan 12
15:46:25 2016
[28389] 2016-01-12 13:46:25 debug [195.251.202.2] try_connect with ver:
2, class: SNMP::Info::Layer3::C6500, comm: <hidden>
[28389] 2016-01-12 13:46:29 debug [195.251.202.2] try_connect with ver:
2, class: SNMP::Info, comm: <hidden>
[28389] 2016-01-12 13:46:32 debug [195.251.202.2] try_connect with ver:
1, class: SNMP::Info::Layer3::C6500, comm: <hidden>
[28389] 2016-01-12 13:46:35 debug [195.251.202.2] try_connect with ver:
1, class: SNMP::Info, comm: <hidden>
[28389] 2016-01-12 13:46:38 debug [195.251.202.2] try_connect with ver:
2, class: SNMP::Info::Layer3::C6500, comm: <hidden>
[28389] 2016-01-12 13:46:41 debug [195.251.202.2] try_connect with ver:
2, class: SNMP::Info, comm: <hidden>
[28389] 2016-01-12 13:46:44 debug [195.251.202.2] try_connect with ver:
1, class: SNMP::Info::Layer3::C6500, comm: <hidden>
[28389] 2016-01-12 13:46:47 debug [195.251.202.2] try_connect with ver:
1, class: SNMP::Info, comm: <hidden>
[28389] 2016-01-12 13:46:50 info discover: finished at Tue Jan 12
15:46:50 2016
[28389] 2016-01-12 13:46:50 info discover: status error: discover
failed: could not SNMP connect to 195.251.202.2
Although, it should work:
$ snmpwalk -v 2c -c privatecomm 10.201.0.15
SNMPv2-MIB::sysDescr.0 = STRING: Cisco IOS Software, C2960 Software
(C2960-LANBASEK9-M), Version 15.0(2)SE7, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2014 by Cisco Systems, Inc.
Compiled Thu 23-Oct-14 14:49 by prod_rel_team
SNMPv2-MIB::sysObjectID.0 = OID: SNMPv2-SMI::enterprises.9.1.716
DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (3058549929) 353 days,
23:58:19.29
...
What should I do to instruct NetDisco to discover the switch with its
new address? (I don't want to entirely remove the "old" device and
rediscover it as a new one, because I would like to keep its historical
data.)
Please advise.
Thanks,
Nick
--- End Message ---
--- Begin Message ---
On 12/01/16 17:53, Nikolaos Milas wrote:
>
> What should I do to instruct NetDisco to discover the switch with its
> new address? (I don't want to entirely remove the "old" device and
> rediscover it as a new one, because I would like to keep its historical
> data.)
>
Hi Nikolaos
You can use netdisco-do renumber to change the IP of a device, see
<http://search.cpan.org/~oliver/App-Netdisco-2.033004/bin/netdisco-do#renumber>.
>From that page:
Change the canonical IP address of a device (specified with -d). Pass
the new IP address in the -e parameter. All related records such as
topology, log and node information will also be updated to refer to the
new device.
Note that no check is made as to whether the new IP is reachable for
future polling.
~netdisco/bin/netdisco-do renumber -d 192.0.2.1 -e 192.0.2.254
Actually I have never used this feature in Netdisco 2.x but I assume it
does exactly what you want.. tell us if it doesn't :)
HTH
Christian
--- End Message ---
--- Begin Message ---
Hello list,
I've been creating plugins and have found a formatting problem when
using more than 1 extra device detail plugin. The <tr> happens outside
the inner loop, causing all plugin output to go to a single row.
Fix is just to move the <TR> and </TR>:
[% IF settings._extra_device_details.size %]
[% FOREACH config IN settings._extra_device_details %]
<tr>
<td>
[% config.label %]
</td>
<td>
[% TRY %]
[% INCLUDE "plugin/${config.name}/device_details.tt" %]
[% CATCH %]
<!-- dummy content required by Template Toolkit TRY -->
[% END %]
</td>
</tr>
[% END %]
[% END %]
Also, I've modified the observium plugin to work with mrtg, created a
plugin for nfsen integration, and am creating plugins for integration
with sccm, racktables, nmap and arbitrary external tools. Let me know if
the project is interested in them and if so how to send them in.
I'm using netdisco-ng as the main interface for my internal company
nettools, so I want to be able to integrate everything into its gui.
-Brian Marshall
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--- End Message ---
--- Begin Message ---
On 13/1/2016 6:39 μμ, Christian Ramseyer wrote:
You can use netdisco-do renumber to change the IP of a device
Thank you Christian,
It worked fine!
All the best,
Nick
--- End Message ---
--- Begin Message ---
I have a clean install of netdisco 2.033004. Instead of trying to update
from version 1.3 I dumped that database and started from scratch. The
install went through fine with no errors during the process (following the
instructions from https://metacpan.org/pod/App::Netdisco.
I noticed some early issues.
When editing the deploy.yml file, the config watcher isnt able to merge the
deploy with the config that is being read. I get the message that says it
is, however it hangs. I tried running a debug and got the same behaviour.
As a result, the only snmp community that will work is public. If I add
public ro to my switch config, netdisco connects to the switch with no
problems. Ive also noted that the netdisco log files are 5 hours off.
Here is the error message from the console:
~netdisco/bin/netdisco-do discover -d 10.40.1.8
[11740] 2016-01-14 18:30:47 info discover: started at Thu Jan 14 13:30:47
2016
Use of uninitialized value in concatenation (.) or string at
/home/netdisco/perl5/lib/perl5/App/Netdisco/Util/SNMP.pm line 139.
[11740] 2016-01-14 18:30:54 info discover: finished at Thu Jan 14 13:30:54
2016
[11740] 2016-01-14 18:30:54 info discover: status error: discover failed:
could not SNMP connect to 10.40.1.8
Server is running centos 6.5. Here is the info from the web interface for
netdisco:
software Version
App::Netdisco 2.033004
DB Schema v40
Dancer 1.3202
Bootstrap 2.3.1
PostgreSQL PostgreSQL 8.4.18 on i386-redhat-linux-gnu, compiled by GCC gcc
(GCC) 4.4.7 20120313 (Red Hat 4.4.7-3), 32-bit.
DBI 1.634, DBD::Pg 2.19.3
SNMP::Info 3.30
Perl 5.010001
Im still digging around. If I can provide anymore info, or if Im missing
something very obvious please let me know.
thanks,
ddh
--- End Message ---
--- Begin Message ---
First, let me thank everyone for their work on netdisco. Especially
Oliver. This opensource utility has saved me lots of time and our school
division from purchasing something similiar from a vendor. My issue now
lies with our newest Cisco 4500x switches.
Has anyone successfully configured the cisco 4500x running the new ios XE
software with netdisco? I cant get snmp walk to connect to the switch at
all. Netdisco errors out when I try to run a discover. Ive configured
snmp on the switch everywhich way I can and still cant get anything info
from it.
thanks,
ddh
--
Dwayne Hottinger
Supervisor of Network Operations
Harrisonburg City Public Schools
http://staff.harrisonburg.k12.va.us/~dhottinger
--- End Message ---
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