Re: Open tcp port 2005 on cisco router

From: Mike Hoskins (mike@adept.org)
Date: Wed Jan 07 2004 - 20:48:16 EST


Deniz CEVIK wrote:
> Yes, I can connect but I couldn't recieve or send any data. I don't know the
> model of cisco router but this information also gives us some hints about
> the model. It should be cisco 2511. As far as I know, in order to get
> terminal screen we should telnet to loopback address that has been defined
> for this purpose in the router. What I wonder is can we still get terminal
> screen when I connect to port 2005 of router's IP from Internet (out of the
> router)?

you can connect via local loopback, or the IP address + port of the
console server. (yes, over the network, which is why there needs to be
ACLs protecting the NAS.) as mentioned, `telnet a.b.c.d 2005` would
typically connect to port 5 on the 2511... assuming the 2511 is
"properly" configured to work with the equipment it's connected to, that
should just pass you through to the end device. if you can connect but
don't get any data, terminal settings (between the cisco and end device)
are probably just wrong or mismatched.

if you have a CCO login, see:

http://www.cisco.com/en/US/customer/tech/tk801/tk36/technologies_configuration_example09186a008014f8e7.shtml

(or just search cisco's site.)

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