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Cisco Bug: CSCtb16143 - CMTS IPv6: Traceback observed on PRE in CMTS ping timeout.

Last Modified

Feb 08, 2017

Products (1)

  • Cisco uBR10000 Series Universal Broadband Routers

Known Affected Releases


Description (partial)


When the ip-init MDD CLI is changed from IPv4 to dual-stack, a Traceback may be
observed on the CMTS console. 


If the CMTS is configured for both IPv4 and IPv6, then going from IPv4 MDD CLI to dual-stack
may cause this issue.
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
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