Preview Tool

Cisco Bug: CSCta14536 - Router crash pointing to SYS-6-STACKLOW on IPIPGW

Last Modified

Jan 29, 2017

Products (1)

  • Cisco 3800 Series Integrated Services Routers

Known Affected Releases


Description (partial)


A Cisco IOS VoIP gateway configured for IPIPGW (CUBE) functionality may crash.


A gateway configured for IPIPGW functionality with the command <CmdBold>allow-connections<noCmdBold> under <CmdBold>voice service voip<noCmdBold> under rare conditions will crash while processing VoIP calls.  

This has been found to occur in some scenarios where a single voip call loops (meaning the call is from the IPIPGW back to the same IPIPGW) through the IPIPGW.

When this occurs, the following error message may be noticed:

%SYS-6-STACKLOW: Stack for process IP Input running low, 0/12000
Bug details contain sensitive information and therefore require a account to be viewed.

Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
Bug information is viewable for customers and partners who have a service contract. Registered users can view up to 200 bugs per month without a service contract.