Preview Tool

Cisco Bug: CSCvh64475 - router crashed after entered "no ipv6 access-class sl_def_ipv6_acl in" during quiet mode

Last Modified

Oct 21, 2019

Products (99)

  • Cisco IOS
  • Cisco 888W Integrated Services Router
  • Cisco C897VA Integrated Services Router
  • Cisco 819 Hardened Integrated Services Router
  • Cisco 892W Integrated Services Router
  • Cisco 886VAG 3G Integrated Services Router
  • Cisco 2951 Integrated Services Router
  • Cisco 898 Secure G.SHDSL EFM/ATM with Multi-Mode 4G LTE ISR Router
  • Cisco 1905 Serial Integrated Services Router
  • Cisco VG204XM Analog Voice Gateway
View all products in Bug Search Tool Login Required

Known Affected Releases

15.5(3)M 15.5(3.1a)M6 15.7(3)M

Description (partial)

Router might crash during quiet mode if deleting default ACL ipv6 sl_def_acl

*Jan 20 01:37:02.431: %SEC_LOGIN-1-QUIET_MODE_ON: Still timeleft for watching failures is 0 secs, [user: afdaf] [Source:] [localport: 23] [Reason: Login Authentication Failed] [ACL: sl_def_acl] at 01:37:02 UTC Sat Jan 20 2018

*Jan 20 01:37:08.087: %SEC-6-IPACCESSLOGP: list sl_def_acl denied tcp ->, 1 packet  


config t
line vty 0 4
no ipv6 access-class sl_def_ipv6_acl in

deleting ipv6 sl_def_acl during Quiet Mode ON
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.