Preview Tool

Cisco Bug: CSCtb28880 - Spurious memory access, %ALIGN-3-TRACE and crash with MPLS and NAT

Last Modified

Jan 31, 2017

Products (1)

  • Cisco IOS

Known Affected Releases


Description (partial)

Problem description:
- 12.4(25)
- Spurious memory access by the tag_sw code when source NAT is enabled on the MPLS interface.
- After some time, router crashes with following messages:
%ALIGN-1-FATAL: Illegal access to a low address
- Source NAT enabled on MPLS interface.
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.