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Cisco Bug: CSCvs56178 - GARP for a NAT ip-address sent from both Active/Standby HSRP router

Last Modified

Jan 15, 2020

Products (1)

  • Cisco 4000 Series Integrated Services Routers

Known Affected Releases

16.9.4

Description (partial)

Symptom:
GARP for the NAT-inside-global-address is sent from both Active/Standby HSRP router.
The problem is seen when both of router are reloaded and shut/no shut NAT outside interface on both routers.
When receiving the GARP, both of router shows the duplicate address message like below.
%IP-4-DUPADDR: Duplicate address x.x.x.x on GigabitEthernetx/x/x, sourced by xxxx.xxxx.xxxx

Conditions:
seen on ISR4K platform
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
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  • Known Fixed Releases
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