Tengo un script en Perl que busca en nuestros conmutadores para encontrar cuál aloja una dirección IP determinada; Este script utiliza net-snmpbibliotecas para sondear a través de una cadena de conmutadores Ethernet (piense en núcleo/distribución/acceso) hasta que encuentra el conmutador correcto donde está conectado el host.
Este script funciona bien en la mayoría de nuestras máquinas Linux, pero tengo uno que arroja mensajes STDERR quejándose de que falta 'zeroDotZero' enSNMPv2-SMI
[mpenning@lnxlmf ietf]$ perl ~/findhost2.pl 192.0.2.30
192.0.2.30, 192.0.2.30, No log handling enabled - turning on stderr logging
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/cisco/IP-MIB.my)
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/cisco/EVENT-MIB.my)
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/DISMAN-SCHEDULE-MIB.txt)
No log handling enabled - turning on stderr logging
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/cisco/IP-MIB.my)
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/cisco/EVENT-MIB.my)
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/DISMAN-SCHEDULE-MIB.txt)
No log handling enabled - turning on stderr logging
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/cisco/IP-MIB.my)
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/cisco/EVENT-MIB.my)
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/DISMAN-SCHEDULE-MIB.txt)
No log handling enabled - turning on stderr logging
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/cisco/IP-MIB.my)
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/cisco/EVENT-MIB.my)
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/DISMAN-SCHEDULE-MIB.txt)
No log handling enabled - turning on stderr logging
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/cisco/IP-MIB.my)
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/cisco/EVENT-MIB.my)
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/DISMAN-SCHEDULE-MIB.txt)
0:1e:b:26:78:d9, No log handling enabled - turning on stderr logging
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/cisco/IP-MIB.my)
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/cisco/EVENT-MIB.my)
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/DISMAN-SCHEDULE-MIB.txt)
No log handling enabled - turning on stderr logging
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/cisco/IP-MIB.my)
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/cisco/EVENT-MIB.my)
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/DISMAN-SCHEDULE-MIB.txt)
No log handling enabled - turning on stderr logging
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/cisco/IP-MIB.my)
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/cisco/EVENT-MIB.my)
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/DISMAN-SCHEDULE-MIB.txt)
No log handling enabled - turning on stderr logging
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/cisco/IP-MIB.my)
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/cisco/EVENT-MIB.my)
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/DISMAN-SCHEDULE-MIB.txt)
No log handling enabled - turning on stderr logging
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/cisco/IP-MIB.my)
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/cisco/EVENT-MIB.my)
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/share/snmp/mibs/DISMAN-SCHEDULE-MIB.txt)
192.0.2.254, Gi5/44
[mpenning@lnxlmf ietf]$
¿Cómo puedo detener los mensajes de error?
Respuesta1
La net-snmpcopia predeterminada de SNMPv2-SMItiene una definición para zeroDotZero...
[mpenning@lnxlmf ietf]$ cd /usr/share/snmp/mibs/
[mpenning@lnxlmf mibs]$ grep zeroDotZero SNMPv2-SMI.txt
zeroDotZero OBJECT-IDENTITY
[mpenning@lnxlmf mibs]$
Resulta que había instalado una copia antigua de SNMPv2-SMI.myen mi directorio MIB de Cisco... esta copia SNMPv2-SMI.myno tenía zeroDotZero y estaba anulando net-snmpla copia de, así que la eliminé.
[mpenning@lnxlmf mibs]$ cd /usr/share/snmp/mibs/cisco/
[mpenning@lnxlmf cisco]$ grep zeroDotZero SNMPv2-SMI.my
[mpenning@lnxlmf cisco]$ sudo rm SNMPv2-SMI.my
Ahora el script se ejecuta sin problemas...
[mpenning@lnxlmf ~]$ perl findhost2.pl 192.0.2.29
192.0.2.29, 192.0.2.29, 0:27:e:22:9a:d5, core-switch2, 7/37
[mpenning@lnxlmf ~]$