Issue of AAA - Line Con 0 = login authentication (password)

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• issue certificates of 802. 1 x authentication and X 509

  Hello

  Can someone please help me with the following question:

  First off I am a guy from Windows Server/PKI/AD etc. rather than CISCO, even if I have a CCNA :)

  I take care of PKI to my company and will work with the team CISCO that are the introduction of CISCO's ISE, we will use X 509 CERT on the suppliants (desktop/laptops Windows computers mainly)

  What I want to know is something pretty basic, but I saw not written anywhere

  Question 1:

  First stop, I guess it's the AAA (ISE) server is the entity that verifies the pleading certificate X 509, rather than the AP (access wireless router for example point)? is that correct

  Question 2:

  As supplicants X 509 certificate is public (for example, it is not secure and anyone can ask what it is normal) I guess the AAA server must encrypt a (random number for example) value with the public key of supplicants (of the X 509 cert) then send this value to the supplicant by which the supplicant decrypts with its private key (that no one else has as usual). Then the supplicant figure the value even with servers AAA public key (which is held in servers announced AAA X 509 cert) cela send on the AAA server and once that deciphers AAA server (with its private key) if the value matches the value originally sent to the supplicant then the AAA server can continue with authentication etc.

  The above assumption is correct?

  If the above is correct, not ISE always act like that or can you lower the security and get just the ISE server to check whether he trusts the issuer of the certificate (CRL does OK) the pleading X 509 Cert and not bother to send the encrypted packet as described above (this of course would ensure not begging-1 is actually "supplicant" - 1).

  Thank you very much in advance

  Ernie

  Answers:

  1 - Yes, ISE verifies the certificate presented by the device of end-user (begging) against his PB of authority certificate TRUSTED internal to import in ISE root and intermediary certificates where you use CA non-public servers (this is my case for EAP - TLS) such as Verisign, Entrust, etc. UNFORTUNATELY, ISE allows you only to have 1 cert for the use of EAP in the list (PEAP, EAP - TLS, etc.), which means that you CAN not EAP - TLS and PEAP running on different SSID. The problem is now that Entrust for example use an intermediary called L1K Entrust which is not included in trust for the devices Apple and Win 7 CA. This causes a certificate not approved for IPADs warning then you need to trust this certificate but for Win 7 features the PEAP TLS Tunnel, Setup will fail if the connection cannot be established if you uncheck "VALIDATE SERVER" on Win 7 for this SSID profile.

  2 - you can create a condition that validates the issuer cert but the authorized Protocol is EAP - TLS or PEAP so that the actual process for one of these protocols, based on my understanding is actually. For example, Protocol PEAP, the configuration of the TLS Tunnel is the 1st step, so once the configured secure tunnel then the inside MSChapv2 + EAPOL is performed and finally the data passes through the tunnel

• The code of failure of the authentication protocol Kerberos was "the user account has been automatically locked because too many attempts to invalid login or password change attempts have been requested.

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  I use Windows 7 (32-bit) with SP1.

  Quite often (at least three times a day) I am to be locked of my PC and cannot connect to 30 mts each time. I've analyzed carefully and there is absolutely nothing wrong with my ID on the front of Windows AD or group etc. policy.

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  The question you have posted is related to the area and would be better suited to the net Tech community. Please visit the link below to find a community that will provide the support you want.
  http://social.technet.Microsoft.com/forums/en-us/w7itprosecurity/threads

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  push reset button until the power led blinks... use the default values on the label of the router

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