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Cisco Bug: CSCvs80092 - Increase max-value for Radius retry-interval on FTD

Last Modified

Jul 17, 2020

Products (1)

  • Cisco Firepower Management Center

Known Affected Releases

6.5.0.2

Description (partial)

Symptom:
FTD will send Radius retransmissions based on the retry-interval timer which can be set to a max of 10 seconds, whereas on IOS you can configure this to be as high as 1000 seconds.

For authentications such as PhoneFactor authentications, the radius server can take much longer to respond (~60 seconds) which will cause multiple retransmissions in between. If the Radius server does not discard duplicate packets, this can cause multiple phone calls to be sent to the end-user.

Conditions:
2 Factor Authentication on FTD
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