Cannot log in to a Cisco 891W via terminal, ssh

Question

I have already referred to this similar question: Telnet or SSH into a Cisco router but the procedure did not work for me.

I have a Cisco 891W. I am able to log in via the console port just fine with username:password. I see a Telnet interface and get an interactive prompt there, but using the same username:password that is successful on console login fails. Likewise, attempting to access a web interface at the same IP with the same credentials fails.

Here is a portion of my show run to give an idea of what's been done.

enable secret 5 mysecret
enable password mypassword
!
aaa new-model
!
aaa authentication login default local
!
username myuser password 0 mypassword
username admin privilege 15 secret 5 mysecret
!
ip access-list standard access-internal-only
 permit 192.168.1.0 0.0.0.255
!
control-plane host
 management-interface FastEthernet0 allow https ssh snmp
line vty 0 4
 access-class access-internal-only in
 password mypassword
 transport input telnet ssh
line vty 5 15

Answer 1

Since you have

line vty 0 4
  password mypassword

you need to connect with "mypassword".

If you want to connect with the user "mysuser" you need to enter the command

line vty 0 15
   login local

Note that telnet is highly insecure, you should disable it and use only ssh, with transport input ssh

Also you shouldn't use

username myuser password 0 mypassword

but rather

username myuser secret 0 mypassword

with

service password encryption

so your password are encrypted in a secure way. The "password" encryption method is kept for compatibility purpose but it is not secure at all (you can find on line tool to decrypt such passwords).