stuck in reverse telnet

i setup a reverse telnet session from my 2509, to my 2501. I now cannot go back into my 2509. I have tried CTRL SHIFT 6 and X and it does nothing. When I do "show sessions" it says there are no sessions. Yet I am reverse telnetted into a router???

this is what I did on the 2509:
int loopback 99
ip address
ip host 2500router 2001
line 1 8
 session-timeout 30
 no exec
 exec-timeout 0 0
 transport input telnet

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Don JohnstonInstructorCommented:
Are you SURE that you're typing "Ctl+Shift+6" and then hitting "x"?

You'll see no sessions when you do a "show sessions" on the 2501 because you're not telneting from the 2501.


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WERAracerAuthor Commented:
you're right, i wasn't doing the key sequence correctly. One strange thing happened. I connected a back to back cable to some of my 2500s and now I cannot reverse telnet into them. It says connection refused. Should there be a password on these router's line vty 0 4 lines or no?
Don JohnstonInstructorCommented:
>I connected a back to back cable to some of my 2500s and now I cannot reverse telnet into them.

What's a "back to back" cable? Connected from where to where?

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