Snmp Walk Tool For Mac
For my project I need to download mac table from switch and do it as fast as possible. Official solution is kind of slow. It requires to get list of all Vlan's, and for each one trigger separate call of snmpwalk with OID=.1.3.6.1.2.1.17.4.3.1.1 and community string indexed with vlan number. It can take significant amount of time, since number of vlan's on our switches ranges in tens.Is there a way to get all mac addresses from mac table at once(some special community index representing all available vlan indexes)?Thanks in advance.
- Net-SNMP 5.7 RC 1 Simple Network Management Protocol (SNMP) is a widely used. Devices like UPSs. Net-SNMP is a suite of applications used to implement SNMP v1, SNMP v2c and SNMP v3 using both IPv4. Retrieve information from an SNMP-capable device, either.
- Download ManageEngine Mib Browser free tool for SNMP monitoring and operations such as GET, Trap, Walk, GETNEXT and Set. Free ManageEngine Mib Browser tool helps administrators to monitor SNMP devices, add and view multiple MIB modules.
The Engineers MIB Walk tool works ok - is an export from this tool ok for you to work with? Try running the tool using SNMPv1 instead of SNMPv2. The tool collects data using SNMP bulk gets which are faster, but under some scenarios it may be trying to pull the data faster than the device can produce it.
2 Answers
Snmp Walk Tool
I think BRIDGE-MIB::dot1dTpFdbTable (1.3.6.1.2.1.17.4.3) will do the job. One can simply retrieve dot1dTpFdbPort (1.3.6.1.2.1.17.4.3.1.2) to retrieve learned MAC -> PORT table. For my DLINK DGS-1216T I can get mac-to-port table from my Linux box by this command:
Additionally I found extra (17th) port number for maintenance MAC.
Snmp Walk Tool
Do you try to retreive the ipNetToMediaTable ({iso(1) identified-organization(3) dod(6) internet(1) mgmt(2) mib-2(1) ip(4) ipNetToMediaTable(22)} or 1.3.6.1.2.1.4.22) from your switch management address. It represents the IP Address Translation table used for mapping from IP addresses to physical addresses.
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If you want to Use SNMP to Find a Port Number from a MAC Address on a Catalyst Switch with a minimum of frames you can us a Get-Bulk PDU, it assume that you switch is SNMP V2c.
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