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Cisco Bug: CSCvr96527 - FMC existing rule error while adding new rule

Last Modified

Sep 01, 2020

Products (35)

  • Sourcefire Defense Center
  • Cisco FirePOWER Appliance 8260
  • Cisco FirePOWER Appliance 8120
  • Cisco FirePOWER Appliance 7050
  • Cisco Firepower Management Center 2500
  • Cisco FirePOWER Appliance 8360
  • Cisco Firepower Management Center 4600
  • Cisco AMP 8150
  • Cisco FirePOWER Appliance 8140
  • Cisco AMP 7150
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Known Affected Releases


Description (partial)

Error seen while adding new AC Rule - "Rule Name already exists"
Even though error is seen, in the background, rule actually gets created with the rule content user had entered.

This issue is seen with following two conditions - 

1. User is using 6.4.0 Firepower Management Center (freshly installed/upgraded) or in any 6.4.0 patch setup 

2. User have configured ?Comments on rule change? as ''Required'' setting under System-> Configuration-> Access Control Preferences.

With this condition, when user clicks on save button, two save requests are sent in the background. With the 1st request rule is already created where as for 2nd request we get error - "Rule Name already exists"
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Bug Details Include

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