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Cisco Bug: CSCul39211 - IKE: AM3 resent if XAUTH_REQ packet not responded to in 10 seconds

Last Modified

Nov 27, 2020

Products (2)

  • Cisco 2600 Series Multiservice Platforms
  • Cisco 2600 Series Multiservice Platforms

Known Affected Releases

15.1(4)M6.10 15.3(3)M 15.6(0.3)T

Description (partial)

With an IOS router set as an EZVPN client, with either interactive (CLI) or HTTP-Intercept authentication enabled, if the user does not enter in proper credentials within 10 seconds, the router will resend AM3 to the EzVPN server. This causes a retransmission storm to trigger and quickly tear down the tunnel, which causes the authentication to fail.

IOS router acting as EzVPN client
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