Hi Bouchaib,Make sure you have put a check on the VLAN DHCP Release option.If you are using ISE 1.3 then your path will be,Guest Access > Configure > Guest Portals > Create, Edit or Duplicate > Portal Behavior and Flow Settings > VLAN DHCP Release Pa...
Yes, Sandeep is correct. You may also check the below link,http://www.cisco.com/c/en/us/td/docs/security/ise/1-2/installation_guide/ise_ig/ise_app_e_man_cert.html
In Cisco ISE, system logs are collected at locations called logging targets. Targets refer to the IP addresses of the servers that collect and store logs.ISE has the following default targets, which are dynamically configured in the loopback addresse...