check_ifoperstatus option -n ifName not working asexpected

[Marc Powell]

> -----Original Message-----
> From: nagios-users-bounces at lists.sourceforge.net [mailto:nagios-users-
> bounces at lists.sourceforge.net] On Behalf Of James Affeld
> Sent: Thursday, November 02, 2006 4:22 PM
> To: nagios-users at lists.sourceforge.net
> Subject: [Nagios-users] check_ifoperstatus option -n ifName not
working
> asexpected
> 
> I'm running check_ifoperstatus to check the condition of interfaces on
a
> Cisco 6009 running CatOS software.
> I'm specifing the SNMP IfIndex value as recommended.   But since the
> IfIndex value can change as the switch is rebooted, I'm running -I
(agent
> supports IFMib ifXTable) and -n (IfName) to verify that I have the
correct
> interface.  When I use -n, I must supply an ifName, but it doesn't
matter
> what ifName I supply.  It comes back with the current ifName for that
> IfIndex and doesn't error out if that ifName doesn't match what I
supply.
> Why require a parameter for -n if the parameter doesn't affect the
return
> condition?
> 
> root at silmec2:/usr/local/nagios/libexec# ./check_ifoperstatus -H
10.139.7.1
> -C REDACTED -k 351 -I -n 4/44
> CRITICAL: Interface 9/6 -  (index 351) is down.
> 
> root at silmec2:/usr/local/nagios/libexec# ./check_ifoperstatus -H
10.139.7.1
> -C REDACTED -k 347 -I -n 4/44
> OK: Interface 9/2 -  (index 347) is up.
> 
> Am I missing something, or is check_ifoperstatus  ?

Looks like check_ifoperstatus. Testing here I see the same results. It
looks like the $name references on lines 155 and 157 should be $ifName.
--

Before --

   ## Check to see if ifName match is requested and it matches - exit if
no match
   ## not the interface we want to monitor
   if ( defined $name && not ($response->{$snmpIfName} eq $name) ) {
      $state = 'UNKNOWN';
      $answer = "Interface name ($name) doesn't match snmp value
($response->{$snmpIfName}) (index $snmpkey)";
      print ("$state: $answer");
      exit $ERRORS{$state};
   }

$ ./check_ifoperstatus -H REDACTED -C REDACTED -k 1 -I -n 4/44
OK: Interface Gi1/1 - @@IN peer01 (index 1) is up.

After --

   ## Check to see if ifName match is requested and it matches - exit if
no match
   ## not the interface we want to monitor
   if ( defined $ifName && not ($response->{$snmpIfName} eq $ifName) ) {
      $state = 'UNKNOWN';
      $answer = "Interface name ($ifName) doesn't match snmp value
($response->{$snmpIfName}) (index $snmpkey)";
      print ("$state: $answer");
      exit $ERRORS{$state};
   }

$ ./check_ifoperstatus -H REDACTED -C REDACTED -k 1 -I -n 4/44
UNKNOWN: Interface name (4/44) doesn't match snmp value (Gi1/1) (index
1)

$ ./check_ifoperstatus -H REDACTED -C REDACTED -k 1 -I -n Gi1/1
OK: Interface Gi1/1 - @@IN peer01 (index 1) is up.

I'm not sure if that is all the code changes necessary but it does
produce the expected behavior.

--
Marc

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