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Cisco AIR-AP1131AG-E-K9 AIR-LAP1131AG-E-K9 dead upon re-estabilished powerline

posted Nov 19, 2013, 2:55 AM by Daniele Albrizio   [ updated May 22, 2017, 6:10 AM ]

I noticed a mass death of MANY AIR-AP1131AG-E-K9 AIR-LAP1131AG-E-K9 Cisco access point after serving online for a long period (5 or 6 years). They simply do not power up anymore using legacy PoE adapter AIR-PWRINJ3 or legacy power supply (46 volts). Some of them still powers up using AIR-PWRINJ4 (56 volts).

It seems that the problem is due to a failure of an electrolitic condenser of the onboard switching power supply.

My collegue is investigating the problem.

Updates and warranty-voiding risky solution will follow hopely soon.

Remotely reboot (reload) Cisco IOS via snmp

posted Jun 23, 2011, 5:48 AM by Daniele Albrizio   [ updated May 22, 2017, 6:11 AM ]

Close your router to all unauthorized hosts first:

conf term
  ip access-list standard acl_snmp
    permit 192.168.1.1
    deny any
  exit


Then enable explicitly shutdown via snmp set:

snmp-server system-shutdown

! Enables system shutdown using the SNMP message reload feature.
snmp-server community verysecret rw acl_snmp


From your management host issue:
$> snmpset -v1 -c verysecret targethost.domain .1.3.6.1.4.1.9.2.9.9.0 i 2

Your router / AP will be immediately reloaded.

Enabling extended Cisco-AVPair in AP access requests

posted Dec 24, 2010, 1:21 AM by Daniele Albrizio   [ updated May 22, 2017, 6:14 AM ]


(config)# radius-server vsa send authentication

This command enables sending of the following information:
    Cisco-AVPair = "ssid=eduroam"
    WISPr-Location-Name = "Location Unspecified "
    WISPr-Location-ID = "isocc=IT,cc=39,ac=32 ,network=eduroam"

The same also works for accounting:
  (config)# radius-server vsa send accounting

Tested on Aironet 1142

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