Cisco Systems IPSec troubles

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Subject Author Date
IPSec troubles techdept 08-24-07
Posted by on August 24, 2007, 11:56 am
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Trying to establish IPSec VPN between Cisco PIX and a Mikrotik router.

Cisco indicates that the reserved not zero on payload/malformed
payload errors are due to a mismatch on the secret key and/or mismatch
of hash/algorith, etc. However, I have reviewed this settings and both
sides match...

Anyone know what else this could mean??


Here is the debug:

crypto_isakmp_process_block:src:aa.aa.aa.aa, dest:bb.bb.bb.bb spt:500
dpt:500
OAK_MM exchange
ISAKMP (0): processing SA payload. message ID = 0

ISAKMP (0): Checking ISAKMP transform 1 against priority 20 policy
ISAKMP: life type in seconds
ISAKMP: life duration (VPI) of 0x0 0x1 0x51 0x80
ISAKMP: encryption 3DES-CBC
ISAKMP: auth pre-share
ISAKMP: hash MD5
ISAKMP: default group 2
ISAKMP (0): atts are acceptable. Next payload is 0
ISAKMP (0): SA is doing pre-shared key authentication using id type
ID_FQDN
return status is IKMP_NO_ERROR
crypto_isakmp_process_block:src:aa.aa.aa.aa, dest:bb.bb.bb.bb spt:500
dpt:500
OAK_MM exchange
ISAKMP (0): processing KE payload. message ID = 0

ISAKMP (0): processing NONCE payload. message ID = 0

ISAKMP (0): processing vendor id payload

return status is IKMP_NO_ERROR
crypto_isakmp_process_block:src:aa.aa.aa.aa, dest:bb.bb.bb.bb spt:500
dpt:500
OAK_MM exchange
ISAKMP (0): processing ID payload. message ID = 0
ISAKMP (0): processing HASH payload. message ID = 0
ISAKMP (0): SA has been authenticated

ISAKMP (0): ID payload
next-payload : 8
type : 2
protocol : 17
port : 500
length : 18
ISAKMP (0): Total payload length: 22
return status is IKMP_NO_ERROR
ISAKMP (0): sending INITIAL_CONTACT notify
ISAKMP (0): sending NOTIFY message 24578 protocol 1
ISAKMP (0): sending phase 1 RESPONDER_LIFETIME notify
ISAKMP (0): sending NOTIFY message 24576 protocol 1
VPN Peer: ISAKMP: Added new peer: ip:aa.aa.aa.aa/500 Total VPN Peers:1
VPN Peer: ISAKMP: Peer ip:aa.aa.aa.aa/500 Ref cnt incremented to:1
Total VPN Peers:1
crypto_isakmp_process_block:src:aa.aa.aa.aa, dest:bb.bb.bb.bb spt:500
dpt:500
ISAKMP: reserved not zero on payload 5!
ISAKMP: malformed payload
crypto_isakmp_process_block:src:aa.aa.aa.aa, dest:bb.bb.bb.bb spt:500
dpt:500
ISAKMP: reserved not zero on payload 5!
ISAKMP: malformed payload
crypto_isakmp_process_block:src:aa.aa.aa.aa, dest:bb.bb.bb.bb spt:500
dpt:500
ISAKMP: reserved not zero on payload 5!
ISAKMP: malformed payload


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