ssh connection error MSR30-20

[pavel_r]

Hi there.

After upgrade from version a_msr30-cmw520-r2207p38-si.bin

to a_msr30-cmw520-r2509p01-si-ru.bin

i can`t connect to router over ssh.

in debug i see

*Sep 15 11:07:02:423 2014 MSR-Pob16 SSH/7/Server_EVENT:  VTY[2]:Accept:
  Socket:7 LineIndex:180,IP:192.168.12.134
*Sep 15 11:07:02:423 2014 MSR-Pob16 SSH/7/Server_EVENT:  VTY[2]:Accept:
  SSH user has logged-in from 192.168.12.134, current FSM is SSH_Main_Connect
*Sep 15 11:07:02:424 2014 MSR-Pob16 SSH/7/Server_MESSAGE:  VTY[2]:SSH2 Version:
  Send Message:SSH_VERSION_SEND from SocketID 7
*Sep 15 11:07:02:424 2014 MSR-Pob16 SSH/7/Server_EVENT:  VTY[2]:Send Version To Client:
  Successful to send version string: SSH-1.99-Comware-5.20

*Sep 15 11:07:02:424 2014 MSR-Pob16 SSH/7/Server_EVENT:  VTY[2]:FSM Change:
  From SSH_Main_Connect to SSH_Main_VersionMatch.

*Sep 15 11:07:02:496 2014 MSR-Pob16 SSH/7/Server_EVENT:  VTY[2]:Read:
  Process user [] from 192.168.12.134.
*Sep 15 11:07:02:497 2014 MSR-Pob16 SSH/7/Server_MESSAGE:  VTY[2]:VersionReceived:
  Received VersionString: SSH-2.0-nsssh2_4.0.0031 NetSarang Computer, Inc.

*Sep 15 11:07:02:497 2014 MSR-Pob16 SSH/7/Server_MESSAGE:  VTY[2]:SendKexInit:
  Send Message SSH2_MSG_KEXINIT(20)
*Sep 15 11:07:02:497 2014 MSR-Pob16 SSH/7/Server_EVENT:  VTY[2]:FSM Change:
  From SSH_Main_VersionMatch to SSH_Main_SSHProcess.

*Sep 15 11:07:02:501 2014 MSR-Pob16 SSH/7/Server_EVENT:  VTY[2]:Read:
  Process user [] from 192.168.12.134.
*Sep 15 11:07:02:502 2014 MSR-Pob16 SSH/7/Server_EVENT:  VTY[2]:Read Buffer:
  Receive Packet(len=380).
*Sep 15 11:07:02:502 2014 MSR-Pob16 SSH/7/Server_MESSAGE:  VTY[2]:Read Buffer:
  Received Message[Type=20]: SSH2_MSG_KEXINIT.
*Sep 15 11:07:02:502 2014 MSR-Pob16 SSH/7/Server_ERROR:  VTY[2]:KexChoose Error:
  Failed to choose encrypt policy!
*Sep 15 11:07:02:503 2014 MSR-Pob16 SSH/7/Server_ERROR:  VTY[2]:Server Key Init Error:
  User [] failed to choose kex(1)!
*Sep 15 11:07:02:503 2014 MSR-Pob16 SSH/7/Server_EVENT:  VTY[2]:Read:
  Cut connect with user [] from 192.168.12.134
*Sep 15 11:07:02:512 2014 MSR-Pob16 SSH/7/Server_EVENT:  VTY[2]:Server Disconnect:
  FSM from SSH_Main_SSHProcess(SSH_Sub1_KEX_Init)(SSH_Sub2_Service_Acc)
  to SSH_Main_Disconnect.
*Sep 15 11:07:02:512 2014 MSR-Pob16 SSH/7/Server_MESSAGE:  VTY[2]:Server Disconnect:
  Send SSH2_MSG_DISCONNECT(1)  from 10.2.0.7 to 192.168.12.134.

Have anyone ideas?

ps: This (new) version of software contains 56 bit encryption capabilities only

[mertdemi]

Hi Pavel

you are right it is definitely related to 56bits encryption capabilities.