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Cisco Bug: CSCtc10247 - Router hang or crash with IPS inspection configured for MSRPC packet

Last Modified

Jan 24, 2017

Products (1)

  • Cisco IOS

Known Affected Releases

12.4(15)T11 12.4(20)T3

Description (partial)


Router hang (requiring a physical power-cycle) or crash.

- Hang is seen if "scheduler isr-watchdog" is NOT configured.
- Crash is seen if "scheduler isr-watchdog" IS configured.


The problem is triggered by IPS inspection of a Microsoft RPC packet.
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