I have the following scenario: Cisco Access-Point AP340 with IP address 172.16.1.1/24, Cisco ACS version 3.2 on Win2k Server with IP address 172.16.1.2/24, DHCP, WINS and DNS Servers are running on a linux server with IP 172.16.1.3/24, Default Gateway for network 172.16.1.0/24 points to 172.16.1.254 (Pix firewall). Microsoft Certificate Authority (CA) is running on the same machine as the ACS Server (i.e. 172.16.1.2), Currently, wireless uses Cisco LEAP authentication to connect to 172.16.1.0/24 network. Everything is working fine. Now I would like to use PEAP to authenticate wirleless users. Cisco documentation really sucks so I don't know if I am doing the right thing. Here are the steps that I did with Cisco ACS: Adding a Certificate Authority Certificate Step 1 In the navigation bar, click System Configuration.
Step 2 Click ACS Certificate Setup. Step 3 Click ACS Certification Authority Setup. Result: Cisco Secure ACS displays the CA Operations table on the Certification Authorities Setup page. Step 4 In the CA certificate file box, type the full path and filename for the certificate you want to use. Step 5 Click Submit. Editing the Certificate Trust List Step 1 In the navigation bar, click System Configuration. Step 2 Click Cisco Secure ACS Certificate Setup. Step 3 Click Edit Certificate Trust List. Step 5 Click Submit Generating a Certificate Signing Request Step 1 In the navigation bar, click System Configuration. Step 2 Click ACS Certificate Setup. Step 3 Click Generate Certificate Signing Request. Result: Cisco Secure ACS displays the Generate new request table on the Generate Certificate Signing Request page. Step 4 In the Certificate subject box, type cn= followed by the name that you would like to use as subject name in this ACS certificate, for example, cn=ACSWireless. Step 5 In the Private key file box, type the full directory path and name of the file in which the private key is saved, for example, c:\privateKeyFile.pem. Step 6 In the Private key password box, type the private key password (that you have invented). Step 7 In the Retype private key password box, retype the private key password. Step 8 From the Key length list, select the length of the key to be used. Step 9 From the Digest to sign with list, select the digest (or hashing algorithm). Step 10 Click Submit Step 11 Restart ACS Afterward, I go into "Global Authentication Setup" and turn-on "PEAP". I think the ACS is done. Assume my configuration with PEAP on the ACS is done, what do I need to do on the client side (i.e. WinXP Service Pack 1)? I know that I don't have to make any changes on the Access Point? Since PEAP uses Certificate, which certificate should the client use? Does it mean the client will be using the same certificate that was generated in the "certificate generate request" phase? Does it also mean that everyone will be using the same certificate? If this is the case, if the certifcate is compromised, then I have to re-issue a new certficate to everyone? Even with certificate, users must still have an account on the ACS server corect? How do I setup PEAP on the client side? Do I even need Cisco Access Control Utility (ACU) with PEAP? Anyone has successfully setup PEAP with Cisco ACS3.x? Please contact me offline to offer me some guidances with this. Thanks. D. --------------------------------- Do you Yahoo!? The New Yahoo! Search - Faster. Easier. Bingo. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=74109&t=74109 -------------------------------------------------- **Please support GroupStudy by purchasing from the GroupStudy Store: http://shop.groupstudy.com FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
