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Posts: 3
Registered: ‎03-13-2013

SNMP RAP 5WN 2WG MAC to BSSID

Hello everyone,

 

i'm trying to snmpwalk the controller to receive the IPs of our RAPs.  I know that i can use the OID .1.3.6.1.4.1.14823.2.2.1.1.3.3.1.5
to  display all the IPs of the online RAPs.  But i don't know which RAP has the displayed IP.

For example the output of the walk is : (IPs are changed)


SNMPv2-SMI::enterprises.14823.2.2.1.1.3.3.1.5.0.36.108.166.92.176 = IpAddress: 10.141.50.169
SNMPv2-SMI::enterprises.14823.2.2.1.1.3.3.1.5.0.36.108.166.101.144 = IpAddress: 10.141.50.175
SNMPv2-SMI::enterprises.14823.2.2.1.1.3.3.1.5.0.36.108.166.105.96 = IpAddress: 10.141.50.173

Let's take the first result.  The Identifier seems to be "0.36.108.166.92.176" . I've read that this has to be the MAC Adress in decimal code, am i right ?

I can recalculate the MAC by changing these decimal code into hexademical ==>  MAC adress should be:

 

00:24:6c:a6:5c:b0

 

but there is no RAP with this specific MAC Adress. RAP with the IP 10.141.50.169 has the MAC 00:24:6c:c2:65:cb.

 

Afterwards i found this article:

https://arubanetworkskb.secure.force.com/pkb/articles/HowTo/R-386

 

According to this article i have to do the following:

 

00:24:6c:c2:65:cb

 

get the last 20 bytes:

 

2 65 cb

 

shift them to left

 

26 5c b0

 

replace the last 24 bytes of the MAC Adress:

 

00:24:6c:26:5c:b0

 

Now in decimal code:

 

0.36.108.38.92.176

 

but according to the snmp output the BSSID is:

 

0.36.108.166.92.176

 

 

I'm a bit confused now....

Did i missunderstood something or did i overread something ?

 

Help is appreciated

 

Best Regards

 

Greenie

 

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