I'm trying to set up a VPN between anASA 5505 and a Cisco 1751 router.
So far we're having problem witha ISAKMP which cannot establish SA .
On the 1751 router I can find the following error
Mar 9 01:18:38.804: ISAKMP (0:103): incrementing error counter on sa: reset_retransmission
Mar 9 01:18:39.804: ISAKMP (0:103): retransmitting phase 1 MM_KEY_EXCH...
Mar 9 01:18:39.804: ISAKMP (0:103): incrementing error counter on sa: retransmit phase 1
Mar 9 01:18:39.804: ISAKMP (0:103): retransmitting phase 1 MM_KEY_EXCH
Mar 9 01:18:39.804: ISAKMP (0:103): sending packet to 213.217.163.199 (R) MM_KEY_EXCH
Mar 9 01:18:39.836: ISAKMP (0:103): received packet from 213.217.163.199 (R) MM_KEY_EXCH
Mar 9 01:18:39.840: %CRYPTO-6-IKMP_NOT_ENCRYPTED: IKE packet from 213.217.163.199 was not encrypted and it should've been.
Mar 9 01:19:06.716: ISAKMP (0:104): vendor ID seems Unity/DPD but bad major
Mar 9 01:19:06.716: ISAKMP (0:104): vendor ID is XAUTH
Mar 9 01:19:06.716: ISAKMP (0:104): processing vendor id payload
Mar 9 01:19:06.716: ISAKMP (0:104): speaking to another IOS box!
Mar 9 01:19:06.716: ISAKMP (0:104): processing vendor id payload
Mar 9 01:19:06.716: ISAKMP (0:104:): vendor ID seems Unity/DPD but bad hash
Mar 9 01:19:06.720: ISAKMP (0:104): Input = IKE_MESG_INTERNAL, IKE_PROCESS_MAIN_MODE
Mar 9 01:19:06.720: ISAKMP (0:104): Old State = IKE_R_MM3 New State = IKE_R_MM3
Mar 9 01:19:06.720: ISAKMP (0:104): sending packet to 213.217.163.199 (R) MM_KEY_EXCHL, IKE_PHASE1_DEL
Mar 9 01:18:40.840: ISAKMP (0:103): Old State = IKE_R_MM4 New State = IKE_DEST_SA
