What is vty 0 15

Virtual teleprinterWe might also wonder what the Vty 5 rule 15 means. VTY lines are widely used to create out-of-band device management sessions. If a line does not have a password, that line cannot be used to manage the device. In some cases, administrators may choose to allow junior staff to use line 0 4 and managers to use line 5 The term vty stands for Virtual Teletype.

The summary 0 - 4 means that the device can allow 5 simultaneous virtual connections, i. Telnet or SSH. In a sense, we can say that 5 are connection ports to the router or switch. This is a type of zone command, we specify a zone with vty virtual terminal line from 0 to 15 ie every 16 lines.

New password command to enter the password to be used for authentication. This also allows Telnet access to this device.

Set the vty 0 4 command line on the router. Enter the password with the password command. For example, if you want to set the password cisco, the command will be the password cisco. It is just the session times out after a certain amount of time. Management with 0. In this article, we will discuss the meaning of the Cisco line vty command. While working on Cisco Routers or Switches you may come across line vty configuration. VTY stands for Virtual Teletype. All the connections are remotely over the network, so there is no hardware associated with it.

The command, line vty 0 4, will open 5 virtual interfaces, i. Cisco hardware supports a maximum of 16 line virtual interfaces, i. In this session, we will configure the line vty 0 4 configurations on Cisco Router.

You must have proper privileges to access the device in configuration mode to configure the line vty configuration. Below configuration is the simple example of line vty configuration:. At this point, I would like to explain one more command related to the remote access of the Cisco Router or Switch. This command is alternate to the line vty, but it will do the same task. That means, if you run the below command, it will open the line vty virtual port for you to gain access over the telnet or ssh.

If you want to enable line vty 9, then you can enter the command line vty 9 in global mode or line mode , such as: config line vty 9 so that the system will automatically enable the previous lines. Of course, you can directly enter line vty 0 9 to directly enable 10 lines. If you do not want to open so many lines for users to use, you only need to use the no line vty m [n] command in global mode to close the line after the mth line.

At this time, the value of n is optional, because the system only allows Turn on the continuous line number, cancel the mth line will automatically cancel all subsequent lines.

Session limit is not set. Time since activation: never Editing is enabled. History is enabled, history size is DNS resolution in show commands is enabled Full user help is disabled Allowed input transports are lat pad mop telnet rlogin ssh nasi.

Allowed output transports are lat pad mop telnet rlogin ssh nasi. Preferred Transport is lat.