topic Re: Login block-for command and Cisco ISE alternatives in Network Access Control

Login block-for command and Cisco ISE alternatives

dimitrios.katsaros — Wed, 10 Jun 2020 14:16:57 GMT

Greetings,

I have set the command "login block-for 300 attempts 3 within 60" on my network devices. However, i am aware that in case of failed login attempts then all users will be unable to login to the device for 300sec. Can somehow this command be configured in a way to block access per individual user or can block access to the device by setting only specific IP addresses on a quite-mode ACL instead?

Does Cisco ISE supports the functionality of blocking access per specific user or again it applies for all users?

Please let me know.

Re: Login block-for command and Cisco ISE alternatives

saxenanitesh8522 — Wed, 10 Jun 2020 17:04:33 GMT

Hi,

Please check the following settings:

Administration > Identity Management > Settings > User Authentication Settings:

- Disable user account after "Value" days if password was not changed

- Lock/Suspend Account with incorrect login attempts

Administration > Identity Management > Identities > Edit User Account:

- Account Disable Policy

Re: Login block-for command and Cisco ISE alternatives

Nadav — Sat, 13 Jun 2020 11:57:56 GMT

If your users are all internal ISE users than the answer already provided for this post is sufficient. Keep in mind that case your login block command would be entirely irrelavant to that policy since it's applied internally via ISE.

If your users are AD-managed, you'd need to handle this via passwords policy in your AD. Check out:

https://community.cisco.com/t5/network-access-control/how-to-configure-password-policy-on-cisco-ise-2-3-to-manage-the/m-p/3786385#M485995

If you want to handle this entirely via "login block-for" then you're out of luck since that's not how the command works. Take a look at:

https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/sec_usr_cfg/configuration/xe-16/sec-usr-cfg-xe-16-book/sec-login-enhance.html . The best you can do is a quiet-mode ACL for hosts you know are secure, not users.