How to access CLI in any router

[foreignerXYZ]

Hey

I am learning CCENT now and I read on how to access the CLI from cisco switch/router, just plug and play. But I don't know how to access the command line interface CLI of my home router. I can access the GUI gateway, and I am assuming this is the equivalent of CLI? if not, then how can I access the CLI of any router ?

Thanks

 

[kanewolf]

Factory firmware in home routers does not usually support telnet or SSH. If there is an option to enable telnet/ssh then you could check that option and you would be able to get to a command line. CLI is a feature that is usually reserved for second source firmware (DD-WRT, Tomato, etc)

 

[MU_Engineer]

Most home routers don't have a CLI as most of them run an extremely bare-bones embeddable OS called VxWorks that doesn't have SSH/telnet or a CLI. Netgear used to famously run a Linux-based OS and then switched to VxWorks because they could get away with using a few MB less RAM. Anybody would would know what a CLI is or how to use it "should be paying a lot more for professional level gear" according to the manufacturers. Cisco (as opposed to Linksys) gear is the expensive professional level gear and as such has a CLI.

My home router has a terminal accessible on the LAN side by ssh, but that is because it's really a mini-ITX Linux computer that I built.