TELNET and SSH

[jonk34567]

question is attached below. why the answer can not be SSH

[Mark Malone]

telnet transport is enabled by default on all routers switches but is considered insecure but for ssh the config needs to be specified , its not , it should say tranport input ssh , so that ssh can be used otherwise its default telnet

[Saeedi4cert]

telnet is the default access method , its enabled by default as a service which means the service is working on the router ( Router is considered as telnet server ), but it need a password to be configured on the router.

you need to configure the number of concurrent telnet session to be established ( i think the default is 4 ), also the password

telnet is not secure , anyone can capture traffic or sniff it can easily read the content it , no encryption.
while it is a best practice to configure an access list ( named as access class ) under telnet.

[Joseph W. Doherty · Accepted solution]

SSH might also require a User ID. If so, that's why it would only be telnet, even though telnet and SSH use the VTY lines.