Silas
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Reverse Telnet -how does this work
Can someone give me a run down on how to set up a reverse telnet scenario between a Cisco router and 2 attached switches.
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line vty 0 4 makes sense to me, but line 110? What exactly does that refer to?
It is a physical line, such as an asynch port. If you add an async card to your router, you need to configure the physical aspects of these lines with the line command. A vty line is a telnet line allowing inbound telnet connections. When you reverse telnet, you are initiating a telnet session over a vty line to the router, and it is then initiating a physical connection over a physical line that was specified with the port used in the telnet command.
After you have added an async card, when you do a "show line", you will see the available TTY lines that it has associated with the async ports. If you do a show line on any router, you will at least see the line numbers associated with the console port, and additionally you will see lines for an aux port and any vty lines you have created.
Hope that helps.
After you have added an async card, when you do a "show line", you will see the available TTY lines that it has associated with the async ports. If you do a show line on any router, you will at least see the line numbers associated with the console port, and additionally you will see lines for an aux port and any vty lines you have created.
Hope that helps.
If you do not have async ports (from NM-16A, NM-4A/S, WIC-2A/S) etc. you can use the AUX port (1700 series upwards), which appears as different line numbers on different platforms. This obviously only gives you one port though.
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/12cgcr/dial_c/dcrtelnt.htm Hope this helps, Worker