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Cisco Bug: CSCte58749 - SRD3 not ignoring an LCP Code Reject packet treating as a fatal err

Last Modified

Feb 28, 2018

Products (1)

  • Cisco IOS

Known Affected Releases

12.2(33)SRD3

Description (partial)

Symptoms: Some interfaces start flapping upon upgrading to Cisco IOS Release
12.2(33)SRD3.
  
  Conditions: This is a corner case condition. The interface flaps occur under
  following conditions:
  
  1. The peer connected on the other side of the interface sends a CODEREJ for a
 valid ECHOREP sent by a Cisco router.
  2. On receiving CODEREJ for ECHOREP, the router terminates the PPP session. The
  PPP sessions restart, and the interface flaps.
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  • Status
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