Question

SSH Access to Cisco ASA 5505

Asked by: Railroad

I'm trying to configure SSH access to our ASA 5505 and ultimately disable telnet.

I've gone into the ASDM and configured it to allow SSH.  However it doesn't work.  Any suggestions?

Show running shows:

ssh 192.168.10.0 255.255.255.0 inside
ssh 192.168.20.0 255.255.255.0 inside

Doesn't the device have to create an SSH key?

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Asked On
2009-10-12 at 07:49:12ID24804657
Tags

cisco firewall asa5505 ssh

Topics

Networking Hardware

,

Network Routers

,

Cisco PIX Firewall

Participating Experts
2
Points
500
Comments
2

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Answers

 

by: PeteLongPosted on 2009-10-12 at 07:51:20ID: 25551728


Allow SSH to PIX / ASA
First allow an IP address (Or network)
eg
ciscoasa(config)#ssh 217.22.146.123 255.255.255.255 outside
or
ciscoasa(config)#ssh 217.22.146.0 255.255.255.0 outside
or
ciscoasa(config)#ssh 192.168.1.1 255.255.255.255 inside
or
ciscoasa(config)#ssh 192.168.1.0 255.255.255.0 inside

Then (Only do this once) Create an RSA key on the Firewall
ciscoasa(config)# crypto key generate rsa
INFO: The name for the keys will be: <Default-RSA-Key>
Keypair generation process begin. Please wait...
Ciscoasa(config)#


Load an SSH Client on your PC e.g. PuTTy http://www.putty.nl/
Under "HostName (or IP Address) enter the Firewalls details
Tick SSH
Select Open
Note: You can give the connection and Save it for use again.
The first time is connects it will give you a warning about
trusting the other end accept it.
The username is pix
The Password is the Firewalls telent password
Note: The telnet password is set to cisco by default change it
using the passwd command
ciscoasa(config)#passwd newpassword.

 


Note if there is a problem with the keys, they might have corrupted. To repair

PIX7 / ASA (v7)
crypto key zeroize rsa
crypto key generate rsa modulus 1024

To telnet down a VPN tunnel to a firewalls inside interface you need the followjng command
management-access inside

 

by: ikalmarPosted on 2009-10-12 at 07:55:32ID: 25551754

HI,

And dont forget to enable local authentication:

aaa authentication ssh console LOCAL

Best regards,
Istvan

20120131-EE-VQP-002

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