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Cisco Bug: CSCum71485 - KS HA test results in increasing number of TEK

Last Modified

Apr 17, 2019

Products (74)

  • Cisco IOS
  • Cisco 886VAG 3G Integrated Services Router
  • Cisco 888W Integrated Services Router
  • Cisco 886VA-CUBE Integrated Services Router
  • Cisco 892W Integrated Services Router
  • Cisco 881SRSTW Integrated Services Router
  • Cisco 1905 Serial Integrated Services Router
  • Cisco 2951 Integrated Services Router
  • Cisco 819 Hardened Integrated Services Router
  • Cisco VG204XM Analog Voice Gateway
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Known Affected Releases

15.3(3)M

Description (partial)

Symptom: An increasing number of TEKs are generated every 30 seconds.
Conditions: This symptom occurs under the following conditions:

1. Change the Group Identity on the Secondary KS causing encryption failure. Change the Group Identity on the Primary KS. All the GMs are deleted from the KSs.
2. Restore the Secondary Key Server. Wait for it to come up as Primary for the Group : GETVPN-GROUP-1.
3. Restore the Primary Key Server with Group : GETVPN-GROUP-1.
4. This creats a new TEK policy every 30 seconds from the newly elected Primary Key Server KS2. The sequence number for rekey remains 1.
5. KS1 is restored to be the primary role.
6. After the existing TEKs from KS2 are expired, it behaves normally.
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Bug Details Include

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