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Cisco Bug: CSCur44431 - Gateway becomes inaccessible due to ARP broadcast flood

Last Modified

Jun 27, 2018

Products (1)

  • Cisco Physical Access Gateways

Known Affected Releases

1.5(0.0.3.9)

Description (partial)

Symptom:
CPAM gateway becomes inaccessible on the network, not responding on its network interface and ping, and access is no longer granted when presenting badges at the readers on the gateway, after it had been working normally for a period of time.  When this occurs all of the gateway's LEDs illuminate normally except for the SVR LED which turns off.

Conditions:
A flood of network broadcast packets such as extremely high level of ARP broadcasts from an IP phone being sent to  a gateway's network port can cause a network error for the gateway, and prevent the gateway from accessing the network; in some cases the gateway software may be disrupted and prevent handling door operations.
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