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How to get a list of all SSIDs from controller via SNMP?

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  • 1.  How to get a list of all SSIDs from controller via SNMP?

    Posted Jan 20, 2018 04:58 PM

    I found this SNMP OID: 1.3.6.1.4.1.14823.2.2.1.1.3.3.1.2  "apESSID"

     

    but when I getbulk it I see repeating SSID names like this:

     

    '1.3.6.1.4.1.14823.2.2.1.1.3.3.1.2.[24.100.114.113.159.176]'=> "dorotea"
     
     
    '1.3.6.1.4.1.14823.2.2.1.1.3.3.1.2.[24.100.114.113.159.184]'=> "dorotea"
     
    Why SSID names repeats several times for this OID?
    and what the value inside brackets represent?
     
     


  • 2.  RE: How to get a list of all SSIDs from controller via SNMP?

    EMPLOYEE
    Posted Jan 22, 2018 11:54 AM

    There's multiple ways to view this depending on your frame of reference:

    1) WLSX-WLAN-MIB::wlanAPESSID

    .1.3.6.1.4.1.14823.2.2.1.5.2.1.7.1.2

    ESSID this BSSID is advertising

    2) WLSX-SWITCH-MIB::apESSID

    .1.3.6.1.4.1.14823.2.2.1.1.3.3.1.2

    ESSID of the Access Point

    3) WLSX-MON-MIB::monAPInfoESSID

    .1.3.6.1.4.1.14823.2.2.1.6.7.1.1.1.4

    ESSID of the access point being monitored

     

    The additional string you see before the ESSID is the hex of the mac address for that radio.  So if you translate it, you'd see the mapping of the radio macs being the same as the AP (physical) MAC up to the last octet.



  • 3.  RE: How to get a list of all SSIDs from controller via SNMP?

    Posted Jan 24, 2018 02:57 AM

     

    @vconsole wrote:

     

    Why SSID names repeats several times for this OID?
    and what the value inside brackets represent? 

    it's repeating twice because the AP is broadcasting it on both bands. use -O0X as a flag in your snmp query to decode the bssid/mac addresses/radio, e.g. use like this (assumes mibs are in the cwd)

    snmpwalk -mALL -M. -v2c -c public -O0X 1.2.3.4 wlanAPESSID

    which gives output like:

    WLSX-WLAN-MIB::wlanAPESSID[STRING: 6c:f3:7f:ca:2a:2e][1][STRING: 6c:f3:2f:56:42:f0] = STRING: split-dot1x
WLSX-WLAN-MIB::wlanAPESSID[STRING: 6c:f3:7f:ca:2a:2e][1][STRING: 6c:f3:2f:56:42:f1] = STRING: bridge-dot1x
WLSX-WLAN-MIB::wlanAPESSID[STRING: 6c:f3:7f:ca:2a:2e][2][STRING: 6c:f3:2f:56:42:e0] = STRING: split-dot1x
WLSX-WLAN-MIB::wlanAPESSID[STRING: 6c:f3:7f:ca:2a:2e][2][STRING: 6c:f3:2f:56:42:e1] = STRING: bridge-dot1x

    first [ ] is the AP wired mac address, the second is the radio (1=5GHz, 2=2.4GHz) and the third is the BSSID