How to telnet from CISCO ASA 5505

Unanswered Question
Feb 12th, 2009

I have a cisco asa 5505 that is setup as the ssh server. I am able to access it without any problem.

Once connected to the ASA 5505, I would like to telnet to my old terminal server 2509 that doesn't support ssh.

How to telnet a device FROM cisco asa 5505?

I have this problem too.
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JORGE RODRIGUEZ Thu, 02/12/2009 - 10:03

You cannot initiate telnet session from any ASA/PIX firewall, you will have to allow straigh telnet access from outside to inside towards the 2509 server.

tititech2007 Thu, 02/12/2009 - 10:12

Thanks -

That is what I am doing right now. But I don't feel secure accessing my home lab using telnet.

Is there a workaround for me to access the 2509 securely with asa?

Tshi M Thu, 02/12/2009 - 10:25

I am assuming that you have a switch. How about ssh to the switch and from the switch telnet to the 2509?

tititech2007 Thu, 02/12/2009 - 10:33

Thanks - I am going to try it.

But, Is that possible to forward port 22 to a switch with cisco asa?

Tshi M Thu, 02/12/2009 - 10:38

I'd have to try it myself. But how about setting up a VPN session? It will be more secure.

tititech2007 Thu, 02/12/2009 - 12:03

Vpn traffics are block at my workplace.

I am able to vpn to my home lab from starbuxx but not at my workplace. Ssh and telnet are the only open ports i find so far.

I want to connect to my home lab from work because I have some free time that I would like to invest to get my CCNP certification.

Yudong Wu Thu, 02/12/2009 - 12:05

If IPSec vpn is blocked. SSL vpn should work fine. refer to my post below.

JORGE RODRIGUEZ Thu, 02/12/2009 - 12:36

I agree with Keven's idea, I would be surprised SSL be block at your work place, if from your work you are allow internet banking most likely they allow ssl , so configure webvpn in your asa5505 and you can prety much access all your inside resources through webvpn.


tititech2007 Fri, 02/13/2009 - 15:58

Thanks -

I am now able to webvpn to the asa but I can't figure out how to telnet from the webvpn to my terminal server.

I need some help -

tititech2007 Sat, 02/14/2009 - 12:27

Thanks for the new link - I am going to try it - I will let know about the result.

tititech2007 Wed, 02/18/2009 - 17:15

Thanks -

I am able to telnet to my old terminal server 2509 through webvpn.

I am going to post a video of the configuration step by step. I hope it will help other members of the community.

Thanks to all of you who has help me- I will make you pround by passing the ccnp cert this year.


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