SNMP OID does not work for 3750x

Leon Khanan · ‎04-20-2016

I am trying to poll for dynamic MAC table from the switch now i am stuck as none of my 3750s cant snmpwalk the .1.3.6.1.2.1.17.4.3.1.1 aka

dot1dTpFdbAddress

snmpwalk -v2c -c public 10.60.128.4 dot1dTpFdbAddress
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/local/airwave/share/snmp/mibs/diffserv.my)
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/local/airwave/share/snmp/mibs/IP-MIB.my)
Bad timestamp format (11 or 13 characters) (2011122200000Z): At line 164 in /usr/local/airwave/share/snmp/mibs/CISCO-LWAPP-PMIP-MIB.my
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/local/airwave/share/snmp/mibs/CISCO-BULK-FILE-MIB.my)
Group not found in module (ciscoLwappSysIgmpConfigGroup): At line 53 in /usr/local/airwave/share/snmp/mibs/CISCO-LWAPP-SYS-CAPABILITY.my
Undefined OBJECT-GROUP (cLMobilityGroupRev01ConfigGroup): At line 1005 in /usr/local/airwave/share/snmp/mibs/CISCO-LWAPP-MOBILITY-MIB.my
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/local/airwave/share/snmp/mibs/hh3c-epon-device.mib)
Did not find 'zeroDotZero' in module SNMPv2-SMI (/opt/airwave/share/snmp/mibs/DISMAN-SCHEDULE-MIB.txt)
Did not find 'zeroDotZero' in module SNMPv2-SMI (/opt/airwave/share/snmp/mibs/DISMAN-EVENT-MIB.txt)
BRIDGE-MIB::dot1dTpFdbAddress = No Such Instance currently exists at this OID

or by OID

snmpwalk -v2c -c public 10.60.128.4 1.3.6.1.2.1.17.4.3.1.1
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/local/airwave/share/snmp/mibs/diffserv.my)
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/local/airwave/share/snmp/mibs/IP-MIB.my)
Bad timestamp format (11 or 13 characters) (2011122200000Z): At line 164 in /usr/local/airwave/share/snmp/mibs/CISCO-LWAPP-PMIP-MIB.my
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/local/airwave/share/snmp/mibs/CISCO-BULK-FILE-MIB.my)
Group not found in module (ciscoLwappSysIgmpConfigGroup): At line 53 in /usr/local/airwave/share/snmp/mibs/CISCO-LWAPP-SYS-CAPABILITY.my
Undefined OBJECT-GROUP (cLMobilityGroupRev01ConfigGroup): At line 1005 in /usr/local/airwave/share/snmp/mibs/CISCO-LWAPP-MOBILITY-MIB.my
Did not find 'zeroDotZero' in module SNMPv2-SMI (/usr/local/airwave/share/snmp/mibs/hh3c-epon-device.mib)
Did not find 'zeroDotZero' in module SNMPv2-SMI (/opt/airwave/share/snmp/mibs/DISMAN-SCHEDULE-MIB.txt)
Did not find 'zeroDotZero' in module SNMPv2-SMI (/opt/airwave/share/snmp/mibs/DISMAN-EVENT-MIB.txt)
BRIDGE-MIB::dot1dTpFdbAddress = No Such Instance currently exists at this OID

has anyone any experience trying to pull that OID from the Cisco switches as a part of over the wire rogue detection ?

switch:

snmp-server view ISO iso included
snmp-server community public RO

I also have v3 configured but i ran v2 just as a test as v3 has the same issue....

Reza Sharifi · ‎04-20-2016

You may get more responses if you move this to the "network management" section of the forum.

prasadm · ‎04-22-2016

Leon,

I feel the problem is the remaining MAC may be associated to a VLAN, and the BRIDGE-MIB, which is the MIB that contains the dot1dTpFdbAddress and  dot1dTpFdbPort needs to be polled using the community plus the "@" symbol and the VLAN number

For example

nms-server2:/home/ccarring> snmpwalk -c public@6 14.32.6.17 dot1dTpFdbPort
.1.3.6.1.2.1.17.4.3.1.2.0.2.185.144.76.102 = INTEGER: 113
.1.3.6.1.2.1.17.4.3.1.2.0.2.253.106.170.243 = INTEGER: 113
.1.3.6.1.2.1.17.4.3.1.2.0.6.83.198.64.173 = INTEGER: 113
.1.3.6.1.2.1.17.4.3.1.2.0.16.13.56.16.0 = INTEGER: 113
.1.3.6.1.2.1.17.4.3.1.2.0.96.84.144.248.0 = INTEGER: 113
.1.3.6.1.2.1.17.4.3.1.2.0.208.2.214.120.10 = INTEGER: 113
.1.3.6.1.2.1.17.4.3.1.2.0.208.211.54.162.60 = INTEGER: 113
.1.3.6.1.2.1.17.4.3.1.2.0.224.30.159.10.210 = INTEGER: 65

The documents below explain in further detail how to associate ports to MAC addresses

How To Get Dynamic CAM Entries (CAM Table) for Catalyst Switches Using SNMP
 http://www.cisco.com/c/en/us/support/docs/ip/simple-network-management-protocol-snmp/13492-cam-snmp.html


Using SNMP to Find a Port Number from a MAC Address on a Catalyst Switch
 http://www.cisco.com/c/en/us/support/docs/ip/simple-network-management-protocol-snmp/44800-mactoport44800.html

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If it is helpful, let me know..

Thank you,
-Prasad.

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