![]() SCRYPTO-6 IKMP M0DE_FAILURE: Processing of Main mode failed with peer at 192.168.1.1 %CRYPTO-4 %CRYPT0 6-IKMP_CRYPT_FAILURE: IKE (connection id 127) unable to encrypt (w/peers RSA public key) packet ^CRYPTO 4 IKMPBAD MESSAGE: IKE message from 192.168.1.2 failed its sanity check or is malformedĪny one of the following messages appears when a peer is configured with the wrong public key of the remote peer (IKii with RSA encryption and manually configured public keys): The following messages appear when a peer is configured with the wrong pre-shared key ( IKE authentication with pre-shared keys): %CRYPT0-6-1KMP_MODE_FAILURE: Processing of Main mode failed with peer at 192.168.1.1 ![]() ![]() %CRYPTO-6-1KMP MODE_FAILURE: Processing of Informational mode failed with peer atġ92.168.1.1 isakmp (215): no offers accepted! isakmp (212): sa not acceptable! Main mode is the negotiation step that establishes the IKE SA. This is caused by one or more mismatching IKE parameters (lifetime, hashing algorithm, encryption algorithm, authentication method, or Diffie-IIellman group). The following messages indicate that IKE negotiation failed and an IKE SA cannot be established. Messages for IKE Negotiation and CA Servers Alternatively, you can clear existing IPsec SAs by crypto map name, peer, or SPI (issue the command clear crypto sa ? for help). This clears all IPsec SAs on the router and might be undesirable if there are active SAs transporting live traffic. To clear existing IPsec SAs, issue the command clear crypto sa. This allows you to observe IKE negotiation on the router from the beginning. To observe IKE negotiation, you might want to clear any existing IKE SAs with the command clear crypto isakmp. | RTA#debug crypto pki messages RTAtfdebug crypto pki transactions To debug CA events, issue these additional commands: See the following section "Messages for IKE Negotiation and CA Servers." With debugging enabled, the router displays the status of IKE and IPsec events in detail. ![]() RTA# debug crypto isakmp RTAtfdebug crypto ipsec To get more detailed information and observe IKE and IPsec negotiations, enable debugging with these commands: ![]()
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