01-22-2021 11:00 AM - edited 01-22-2021 01:50 PM
Hi all
After upgrade ios to ver 17.x when ssh to other machine it show ""[Connection to [IP ADDRESS] aborted: error status 0]""
I double check the ssh verion between 2 switchs are same (1.99) please see when show "ip ssh"
I try remove key then create again butt no work
SW01#sh ip ssh
SSH Enabled - version 1.99
Authentication methods:publickey,keyboard-interactive,password
Authentication Publickey Algorithms:x509v3-ssh-rsa,ssh-rsa,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,x509v3-ecdsa-sha2-nistp256,x509v3-ecdsa-sha2-nistp384,x509v3-ecdsa-sha2-nistp521,rsa-sha2-256,rsa-sha2-512
Hostkey Algorithms:x509v3-ssh-rsa,rsa-sha2-512,rsa-sha2-256,ssh-rsa
Encryption Algorithms:aes128-gcm,aes256-gcm,aes128-ctr,aes192-ctr,aes256-ctr
MAC Algorithms:hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha2-256,hmac-sha2-512
KEX Algorithms:ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group14-sha1
Authentication timeout: 120 secs; Authentication retries: 3
Minimum expected Diffie Hellman key size : 2048 bits
IOS Keys in SECSH format(ssh-rsa, base64 encoded): SW01
ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAAAgQDCGTsnQPXnfXQBFdnTXzsPGh7X/UfOozYKLBXW3vVb
JI1cbV+aNVSHv8QFiZ4r7vZHT+bWW8xT+iskwiBBpHgKLmy1UDZ/6os4GqSgG6u1A6mLd4qp6sMfdxFq
jikpzyxvxs1RXWnQRouvqcCAvkj3nez2rb20NicPj3pwPntGzQ==
SW02#sh ip ssh
SSH Enabled - version 1.99
Authentication methods:publickey,keyboard-interactive,password
Authentication Publickey Algorithms:x509v3-ssh-rsa,ssh-rsa
Hostkey Algorithms:x509v3-ssh-rsa,ssh-rsa
Encryption Algorithms:aes128-ctr,aes192-ctr,aes256-ctr
MAC Algorithms:hmac-sha1,hmac-sha1-96
Authentication timeout: 120 secs; Authentication retries: 3
Minimum expected Diffie Hellman key size : 1024 bits
IOS Keys in SECSH format(ssh-rsa, base64 encoded): SW01
ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAAAgQC/zxiWqkjFmgvmI4tllQCohKySU+qwSiCC9ic6BfS/
ntx3oSY3en3yXO5on6FBc/QstEoP4FhkstjPdw4LJFyHLTfj2Ftr8WRxKTzD+iuVY/DzeaNHCTMTXOED
xmEj9RvxuVpp2aytZWDl9uhruPipilDya6F1l/DTNo3DkgvcuQ==
when SSH to other device
No matching mac found: client hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha2-256,hmac-sha2-512 server hmac-sha1,hmac-sha1-96
thanks in advance
01-22-2021 11:20 AM - edited 01-22-2021 11:21 AM
Look at the release notes for the 17.X SSH requirement,
01-22-2021 11:41 AM
sorry I am too newbie
Before upgrade ios ,
I configuration SSH as simple
after upgrade I can't continuous to next machine by SSH
Butt still direct connect to switch is ok
domain name
hostname
cryto kengen rsa 1024
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