How to telnet from CISCO ASA 5505

Unanswered Question
Feb 12th, 2009
User Badges:

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?


  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
Loading.
JORGE RODRIGUEZ Thu, 02/12/2009 - 10:03
User Badges:
  • Green, 3000 points or more

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
User Badges:

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
User Badges:
  • Silver, 250 points or more

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
User Badges:

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
User Badges:
  • Silver, 250 points or more

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
User Badges:

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
User Badges:
  • Gold, 750 points or more

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

JORGE RODRIGUEZ Thu, 02/12/2009 - 12:36
User Badges:
  • Green, 3000 points or more

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.



Regards

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

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
User Badges:

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
User Badges:

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.


Yudong Wu Wed, 02/18/2009 - 20:48
User Badges:
  • Gold, 750 points or more

Martial,

Thanks for sharing.

Good luck on your CCNP test.

Actions

This Discussion