Preview Tool

Cisco Bug: CSCur78406 - CGN applications fail to work after removing/adding cgn instance

Last Modified

Jun 09, 2018

Products (1)

  • Cisco ASR 9000 Series Aggregation Services Routers

Known Affected Releases


Description (partial)

Remove the CGN instance using no service cgn  and then rollback the configuration.
During the rollback configuration, the config failed to msg is displayed, but the commit is successful.
RP/0/RSP1/CPU0:Nov 17 14:47:43.990 : cgn_ma[1079]: %SERVICES-CGN-3-CORE_FAIL : Configuration failed to apply for cgn 'vcgn1'. Use 'show cgn trace master-agent apply reverse'command for failure details.
After this, observe that the show command for nat44 fails with ?error, operation not permitted?, NAT64 displays wrong address pool, DS-lite shows 0 address pool.
Traffic does not flow for any of the features.

This issue is specific SIT testbed it's not reproducible in different testbeds.
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.