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Cisco Bug: CSCtd43168 - breakpoint exception crash following SYS-2-CHUNKFREE in NAT MIB Helper

Last Modified

Jan 23, 2017

Products (1)

  • Cisco IOS

Known Affected Releases

12.4(15)T13b 12.4(18b) 12.4(20)T5 12.4(22)T5 12.4(24)T3 12.4(25a) 15.1(0.9)T

Description (partial)

Symptoms:  A breakpoint exception crash occurs while configuring SNMP traps 
via Cisco Works after the following errors are displayed:

%SNMP-5-WARMSTART: SNMP agent on host <host name> is undergoing a warm start
%SYS-2-CHUNKFREE: Attempted to free nonchunk memory, chunk ########, data 
########. -Process= "NAT MIB Helper", ipl= 0, pid= 277 -Traceback=

Conditions: This symptom is observed after unconfiguring snmp-server, then 
configuring it again. Commands used for this configuration could include 
<CmdBold>snmp-server enable traps<noCmdBold> or <CmdBold>snmp-server 
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