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Cisco Bug: CSCun06336 - NHRP: Clean up NHRP registration processing and forwarding

Last Modified

Sep 01, 2020

Products (1)

  • Cisco IOS

Known Affected Releases

15.0M 15.1T

Description (partial)

Symptom:
Incorrect NHRP mapping table entries and triggering a node to think it is behind NAT when it isn't.
Can result in spoke-spoke data flows failing or being forwarded via the spoke-hub-spoke path rather than the direct spoke-spoke path.

Conditions:
DMVPN Phase 3 and a spoke configured with incorrect static mapping for a NHS.
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