Corente Services Gateway - Phase1 failure to Cisco

(Doc ID 2295377.1)

Last updated on AUGUST 09, 2017

Applies to:

Corente Cloud Services Exchange - Version 9.4 and later
Information in this document applies to any platform.

Symptoms

The connectivity between Corente Services Gateway and Cisco device will not come active and appears to fail in phase1/IKE.

On the CSG /var/log/secure will indicate a phase1 issue:

Aug 9 13:53:48 CSG2 pluto[27896]: "T.device.1048587" #5783: NAT-Traversal: Result using RFC 3947 (NAT-Traversal): no NAT detected
Aug 9 13:53:48 CSG2 pluto[27896]: "T.device.1048587" #5783: transition from state STATE_MAIN_I2 to state STATE_MAIN_I3
Aug 9 13:53:48 CSG2 pluto[27896]: "T.device.1048587" #5783: STATE_MAIN_I3: sent MI3, expecting MR3
Aug 9 13:53:49 CSG2 pluto[27896]: packet from 10.145.47.72:500: phase 1 message is part of an unknown exchange
Aug 9 13:53:49 CSG2 pluto[27896]: "T.device.1048587" #5783: discarding duplicate packet; already STATE_MAIN_I3
Aug 9 13:53:54 CSG2 pluto[27896]: "T.device.1048587" #5783: discarding duplicate packet; already STATE_MAIN_I3
Aug 9 13:54:03 CSG2 pluto[27896]: "T.device.1048587" #5783: discarding duplicate packet; already STATE_MAIN_I3
Aug 9 13:54:13 CSG2 pluto[27896]: "T.device.1048587" #5783: discarding duplicate packet; already STATE_MAIN_I3
Aug 9 13:54:23 CSG2 pluto[27896]: "T.device.1048587" #5783: max number of retransmissions (2) reached STATE_MAIN_I3. Possible authentication failure: no acceptable response to our first encrypted message
Aug 9 13:54:23 CSG2 pluto[27896]: "T.device.1048587" #5783: starting keying attempt 2 of at most 999999, but releasing whack in Phase I

On the Cisco device with debug turned on will report "bad ike message failed sanity check"

 

Cause

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