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2. Basic Router Security and Access Cont... > 2.3. Logging In to the Router’s Cons...

2.3. Logging In to the Router’s Console

Problem

You have lost access to the router through other means and you need a way to log in.

Solution

Log in to the router using the console port:

	aviva@server1% telnet router1-con
	Trying 172.19.121.19…
	Connected to router1-con.mycompany.com.
	Escape character is '^]'.
	router1 (ttyd0)
	login:

Discussion

The console port on JUNOS routers is enabled by default. If you ever lose access to the router through normal login means, you can log in using the console port. While it is possible to disable the console port, it is really not recommended.

Use of the console port is not really required other than when you are initially installing the router. However, many people use the console port as the access of last resort. You can set up a terminal server with console connections to a number of devices in the event that the network fails. Also, if someone accidentally misconfigures the router and locks themselves out, or if routing has failed, you can still get into the router remotely using the console port.


  

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