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Cisco Bug: CSCsz24327 - no ip igmp join-group CLI causes the router to crash

Last Modified

Jan 31, 2017

Products (1)

  • Cisco IOS

Known Affected Releases


Description (partial)

Symptoms: The following command crashes the router:

<CmdBold>demo-gm1(config)#int vlan 10<noCmdBold> 
<CmdBold>demo-gm1(config-if)#no ip igmp join-group <group_address>  source

Conditions: The problem happens when we join and unjoin a particular 
source-group immediately. Also, the problem is seen only when the DNS server 
configured for IGMP SSM group to source mapping is not responding. If the DNS
responds properly, the problem may not occur. Also, if DNS server is not present.
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
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