Preview Tool

Cisco Bug: CSCsz45736 - "no ipv6 cef" command makes the router crash

Last Modified

Feb 07, 2017

Products (1)

  • Cisco IOS

Known Affected Releases


Description (partial)

On a 7200 running c7200-p-mz.122-31.SB13  , issuing the command "no ipv6 cef" causes the router to crash with the following CLI output:

%ALIGN-1-FATAL: Illegal access to a low address 


Normal usage
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.