Nagios Support Forum

No ports were detected on the switch. Possible reasons for this include:
The switch is currently down
The switch does not exist at the address you specified
SNMP support on the switch is disabled

If you keep experiencing problems with the switch wizard scan, login to the Nagios XI server as the root user and execute the following command:

Code: Select all

/usr/bin/cfgmaker --show-op-down --noreversedns --zero-speed '100000000' '[email protected]:161::::2'

[root@nagios /]# /usr/bin/cfgmaker --show-op-down --noreversedns --zero-speed '100000000' '[email protected]:161::::2'
--base: Get Device Info on [email protected]:161::::2
SNMP Error:
no response received
SNMPv2c_Session (remote host: "195.xxx.xxx.xxx" [195.xxx.xxx.xxx].161)
community: "public"
request ID: 1279053911
PDU bufsize: 8000 bytes
timeout: 2s
retries: 5
backoff: 1)
at /usr/bin/../lib/mrtg2/SNMP_util.pm line 651
SNMPWALK Problem for 1.3.6.1.2.1.1 on [email protected]:161::::2:v4only
at /usr/bin/cfgmaker line 951
WARNING: Skipping [email protected]:161::::2 as no info could be retrieved

Use of uninitialized value $comment_sysdescr in substitution (s///) at /usr/bin/cfgmaker line 379.
Use of uninitialized value $sysname in concatenation (.) or string at /usr/bin/cfgmaker line 412.
Use of uninitialized value $comment_sysdescr in concatenation (.) or string at /usr/bin/cfgmaker line 412.
Use of uninitialized value $syscontact in concatenation (.) or string at /usr/bin/cfgmaker line 412.
Use of uninitialized value $syslocation in concatenation (.) or string at /usr/bin/cfgmaker line 412.
# Created by
# /usr/bin/cfgmaker --show-op-down --noreversedns --zero-speed 100000000 [email protected]:161::::2


### Global Config Options

# for UNIX
# WorkDir: /home/http/mrtg

# or for NT
# WorkDir: c:\mrtgdata

### Global Defaults

# to get bits instead of bytes and graphs growing to the right
# Options[_]: growright, bits

EnableIPv6: no

######################################################################
# System:
# Description:
# Contact:
# Location:
######################################################################

scottwilkerson wrote:Are you sure SNMPv2 is enables for this router and the community string is "public"?

Can this router be reached from the Nagios XI server?

Is the firewall blocking port 161?

agpol07 wrote:Timeout: No Response from 195.xxx.xxx.xxx