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Log Reference

CloudEngine 8800, 7800, 6800, and 5800 V200R005C00

This document provides the explanations, causes, and recommended actions of logs on the product.

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SSH/5/SSH_INSECURE_LOGIN: SSH server login is insecure. (ServiceType=[ServiceType], UserName=[UserName], IPAddress=[IPAddress], VPNInstanceName=[VPNInstanceName], Reason=[Reason].)


SSH server login is successful with insecure algorithm or smaller key length.


Parameter Name Parameter Meaning


Indicates the service type.


Indicates the user name.


Indicates IP address of the client.


Indicates the name of the VPN instance.


Indicates the reason for insecure login.

Possible Causes

Cause 1:

SSH server connection is established with one of the following insecure cipher algorithms: des_cbc, 3des_cbc, arcfour128, arcfour256, aes128_cbc, aes192_cbc, aes256_cbc, md5, md5_96, sha1, sha1_96 and sha2_256_96.

Cause 2:

SSH server connection is established with one of the following insecure HMAC algorithms: md5, md5_96, sha1, sha1_96 and sha2_256_96.

Cause 3:

Length of identity key (RSA, DSA) is less than 2048 bits.


  1. Cause 1:

    Use secure cipher algorithm to establish the connection like aes128_ctr and aes256_ctr.

  2. Cause 2:

    Use secure HMAC algorithm to establish the connection like sha2_256.

  3. Cause 2:

    Configure identity key (RSA, DSA) with length 2048 bits.

Updated: 2019-04-20

Document ID: EDOC1100039602

Views: 171812

Downloads: 110

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