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Old 05-08-2014, 07:37 AM
evoxfan evoxfan is offline
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Join Date: Nov 2012
Posts: 9
SSH2 Key Exchange Failure

I'm getting this key exchange failure when attempting an ssh2 to a far end device. It looks to be the exact problem outlined in this thread, but the solution provided doesn't work for me. I'm running version 7.1.3 x64 on Windows 7 Pro x64.

Here's the info on the far end device. I think it is running Solaris, but I'm not sure.

Device model: Brix 3100
Device serial number: XXXXXXXXX
Monolith image: b3100-x86_64-monolith-11Dec2013.11.5845.b3100
Monolith build date: Wed Dec 11 11:39:19 EST 2013
Monolith revision: 8.2.1
FPGA version: 0x8d
Board version: 0x2
Test module serial number: 716723

Here is my trace options capture:

[LOCAL] : SSH2Core version 7.1.0.378
[LOCAL] : Connecting to XX.XXX.XX.XXX:22 ...
[LOCAL] : Changing state from STATE_NOT_CONNECTED to STATE_EXPECT_KEX_INIT
[LOCAL] : Using protocol SSH2
[LOCAL] : RECV : Remote Identifier = 'SSH-2.0-OpenSSH_4.2'
[LOCAL] : CAP : Remote can re-key
[LOCAL] : CAP : Remote sends language in password change requests
[LOCAL] : CAP : Remote sends algorithm name in PK_OK packets
[LOCAL] : CAP : Remote sends algorithm name in public key packets
[LOCAL] : CAP : Remote sends algorithm name in signatures
[LOCAL] : CAP : Remote sends error text in open failure packets
[LOCAL] : CAP : Remote sends name in service accept packets
[LOCAL] : CAP : Remote includes port number in x11 open packets
[LOCAL] : CAP : Remote uses 160 bit keys for SHA1 MAC
[LOCAL] : CAP : Remote supports new diffie-hellman group exchange messages
[LOCAL] : CAP : Remote correctly handles unknown SFTP extensions
[LOCAL] : CAP : Remote correctly encodes OID for gssapi
[LOCAL] : CAP : Remote correctly uses connected addresses in forwarded-tcpip requests
[LOCAL] : CAP : Remote can do SFTP version 4
[LOCAL] : CAP : Remote x.509v3 uses ASN.1 encoding for DSA signatures
[LOCAL] : CAP : Remote correctly handles zlib@openssh.com
[LOCAL] : SEND : KEXINIT
[LOCAL] : RECV : Read kexinit
[LOCAL] : Available Remote Kex Methods = diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1
[LOCAL] : Selected Kex Method = diffie-hellman-group1-sha1
[LOCAL] : Available Remote Host Key Algos = ssh-rsa,ssh-dss
[LOCAL] : Selected Host Key Algo = ssh-dss
[LOCAL] : Available Remote Send Ciphers = aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour128,arcfour256,arcfour,aes192-cbc,aes256-cbc,rijndael-cbc@lysator.liu.se,aes128-ctr,aes192-ctr,aes256-ctr
[LOCAL] : Selected Send Cipher = aes256-ctr
[LOCAL] : Available Remote Recv Ciphers = aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour128,arcfour256,arcfour,aes192-cbc,aes256-cbc,rijndael-cbc@lysator.liu.se,aes128-ctr,aes192-ctr,aes256-ctr
[LOCAL] : Selected Recv Cipher = aes256-ctr
[LOCAL] : Available Remote Send Macs = hmac-md5,hmac-sha1,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96
[LOCAL] : Selected Send Mac = hmac-sha1
[LOCAL] : Available Remote Recv Macs = hmac-md5,hmac-sha1,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96
[LOCAL] : Selected Recv Mac = hmac-sha1
[LOCAL] : Available Remote Compressors = none,zlib@openssh.com
[LOCAL] : Selected Compressor = none
[LOCAL] : Available Remote Decompressors = none,zlib@openssh.com
[LOCAL] : Selected Decompressor = none
[LOCAL] : Changing state from STATE_EXPECT_KEX_INIT to STATE_KEY_EXCHANGE
[LOCAL] : SEND : KEXDH_INIT
[LOCAL] : RECV: TCP/IP close
[LOCAL] : Changing state from STATE_KEY_EXCHANGE to STATE_CLOSED
[LOCAL] : Connected for 0 seconds, 611 bytes sent, 724 bytes received
[LOCAL] : Stream has closed [CLOSE_TYPE_NONSPECIFIC] : Connection closed.
SecureCRT - Version 7.1.3 (x64 build 378)

Connection closed.

Last edited by evoxfan; 05-08-2014 at 08:33 AM. Reason: Remove possible sensitive data
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