Authenticated on ISE 1.2 (as admin) against an external radius server

Hello
Our customer wants to be authenticated on ISE 1.2 (as admin) against an external radius server (like ACS not microsoft). How could i do that ?
Is it possible while retaining internal admin users database in a sequence "external_radius or internal"
thank you in advance.
Best regards

External authentication is supported only with internal authorization:
External Authentication + Internal Authorization
When configuring Cisco ISE to provide administrator authentication using an external RSA SecurID identity store, administrator credential authentication is performed by the RSA identity store. However, authorization (policy application) is still done according to the Cisco ISE internal database. In addition, there are two important factors to remember that are different from External Authentication + External Authorization:
You do not need to specify any particular external administrator groups for the administrator.
You must configure the same username in both the external identity store and the local Cisco ISE database.
To create a new Cisco ISE administrator that authenticates via the external identity store, complete the following steps:
Step 1 Choose Administration > System > Admin Access > Administrators > Local Administrators.
The Administrators window appears, listing all existing locally defined administrators.
Step 2 Follow the guidelines at Creating a New Cisco ISE Administrator to ensure that the administrator username on the external RSA identity store is also present in Cisco ISE. Be sure to click the External option under Password.
Note Remember: you do not need to specify a password for this external administrator user ID, nor are you required to apply any specially configured external administrator group to the associated RBAC policy.
Step 3 Click Save .

Similar Messages

Cisco ISE: External RADIUS Server

Hi,
I would like to forward RADIUS from PSN to another PSN. I already defined "External RADIUS Servers".
So, how can I use this external RADIUS server to process my request ?
Looking at the user guide but didn't find any information about this setting (For rule based not simple rule)
If anyone use this, please suggest this to me.
Thanks,
Pongsatorn

Defining an External RADIUS Server
The Cisco Cisco ISE can function both as a RADIUS server and as a RADIUS proxy server. When it acts as a proxy server, the Cisco Cisco ISE receives authentication and accounting requests from the network access server (NAS) and forwards them to the external RADIUS server. The Cisco Cisco ISE accepts the results of the requests and returns them to the NAS. You must configure the external RADIUS servers in the Cisco Cisco ISE to enable it to forward requests to the external RADIUS servers. You can define the timeout period and the number of connection attempts.
The Cisco Cisco ISE can simultaneously act as a proxy server to multiple external RADIUS servers. You can use the external RADIUS servers that you configure here in RADIUS server sequences. This External RADIUS Server page lists all the external RADIUS servers that you have defined in Cisco Cisco ISE. You can use the filter option to search for specific RADIUS servers based on the name or description or both.
To create an external RADIUS server, complete the following steps:
Step 1 Choose Administration > Network Resources > External RADIUS Servers.
The RADIUS Servers page appears with a list of external RADIUS servers that are defined in Cisco ISE.
Step 2 Click Add to add an external RADIUS server.
Step 3 Enter the values as described:
•Name—(Required) Enter the name of the external RADIUS server.
•Description—Enter a description of the external RADIUS server.
•Host IP—(Required) Enter the IP address of the external RADIUS server.
•Shared Secret—(Required) Enter the shared secret between Cisco Cisco ISE and the external RADIUS server that is used for authenticating the external RADIUS server. A shared secret is an expected string of text that a user must provide to enable the network device to authenticate a username and password. The connection is rejected until the user supplies the shared secret. The shared secret can be up to 128 characters in length.
•Enable KeyWrap—This option increases RADIUS protocol security via an AES KeyWrap algorithm, to help enable FIPS 140-2 compliance in Cisco ISE.
•Key Encryption Key—This key is used for session encryption (secrecy).
•Message Authenticator Code Key—This key is used for keyed HMAC calculation over RADIUS messages.
•Key Input Format—Specify the format you want to use to enter the Cisco ISE FIPS encryption key, so that it matches the configuration that is available on the WLAN controller. (The value you specify must be the correct [full] length for the key as defined below—shorter values are not permitted.)
–ASCII—The Key Encryption Key must be 16 characters (bytes) long, and the Message Authenticator Code Key must be 20 characters (bytes) long.
–Hexadecimal—The Key Encryption Key must be 32 bytes long, and the Message Authenticator Code Key must be 40 bytes long.
•Authentication Port—(Required) Enter the RADIUS authentication port number. The valid range is from 1 to 65535. The default is 1812.
•Accounting Port—(Required) Enter the RADIUS accounting port number. The valid range is from 1 to 65535. The default is 1813.
•Server Timeout—(Required) Enter the number of seconds that the Cisco Cisco ISE waits for a response from the external RADIUS server. The default is 5 seconds. Valid values are from 5 to 120.
•Connection Attempts—(Required) Enter the number of times that the Cisco Cisco ISE attempts to connect to the external RADIUS server. The default is 3 attempts. Valid values are from 1 to 9.
Step 4 Click Submit to save the external RADIUS server configuration.

Authentication Policy ISE with External RADIUS Server

Hi All,
I would like to authenticate client by using External RADIUS. Once I create authentication policy using the new compound condition (wireless dot1x + Radius Username Matches "domainB\") I would like to forward the user authentication who make an authen using domainB\username to the External RADIUS Server Sequence. But when I check on the authentication dashboard, it still authenticate using the default authentication rule.
Please suggest about this scenario.
Regards,
Sent from Cisco Technical Support Android App

Hi jrabinow,
Which details you would like to see ?
Here is some infos.
ISEs are deployed in 2 domains such as "acme.com" and "sub.acme.com"
Each domain does not make a trusted relationship so these 2 domains cannot communicate between them.
Each domain has owned Enterprise Root CA (Microsoft)
Client who need to access the network need to authenticate with EAP-TLS.
My environment
My ISE node joined into domain "acme.com"
User will be "[email protected]"
Once the user from "[email protected]" try to authenticate, I would like to forward the RADIUS request from ISEs (acme.com) to other ISEs (sub.acme.com)
After ISEs in "sub.acme.com" return RADIUS-ACCEPT then ISEs in "acme.com" will process an authorization policy.
Regards,
Pongsatorn

ISE 1.2 Patch 2 External RADIUS Server Sequence Broken?

Hi community,
We have upgraded our proof of concept ISE 1.2 lab to Patch level 2.
Our lab design includes the use of external RADIUS servers which we off-load certain authentication rules to.
To ensure resiliency of the external RADIUS service, we have two of these which we add to a RADIUS Server Sequence, the idea being that if the first in the list is unavailable, ISE will try the second and all will be well.
Now this worked for us in testing ISE 1.2, but I have noticed that after the upgrade to Patch 2 ISE is sending the majority RADIUS traffic to the first (failed) external RADIUS server, with only the odd RADIUS Access-Request to thte next in the list.
Anybody else come across this??
All helpful comments rated!
Many thanks, Ash.

I couldn't find any known issues with this feature. Could you please paste the screen shot of external radius sequence and configuration. Also, how are we determing that the first server in the sequence is DEAD?
~BR
Jatin Katyal
**Do rate helpful posts**

ISE 1.2 EAP-TLS handshake to external RADIUS

Hi everyone!
I'm trying to implement ISE to authenticate a wireless network using a cisco WLC 5508, I have an ISE virtual Appliance version 1.2 and a WLC 5508 version 7.6 with several 3602e Access Points (20 aproximately).
Right now they are authenticating with a RADIUS Server (which I don't manage, it's out of my scope), the WLC uses this RADIUS Server to authenticate using 802.1x and EAP-TLS (which means the clients need to have a valid certificate and be in the RADIUS database which is integrated to the Active Directory), I can't touch the CA either. So now I need to authenticate using Cisco ISE instead of the RADIUS Server (at least directly), the problem is that for "security" reasons or whatever they don't let me integrate the ISE to the CA, so I added the RADIUS server as an external identity source and made my authentication Policy rule pointing at it, like this:
If: Wireless_802.1X Allow Protocols: Default Network Access Use: RADIUS
Then I added ISE as a RADIUS Server on my WLC and made a Test SSID 802.1X pointing to ISE to authenticate and all that, I did some tests and I got this error:
12520 EAP-TLS failed SSL/TLS handshake because the client rejected the ISE local-certificate
Which means the clients are trying to do the EAP-TLS Process to validate the certificate with the Cisco ISE (but ISE does not have the certificate because they won't let me integrate to the CA directly) so it fails. Is there any way I can do something to redirect that EAP-TLS handshake to the exernal RADIUS Server? Making ISE kind of like a connecting point only for the authentication, I realize it's not the best scenario but giving the circumstances it's the best I can do for now, later on I will add the AD to ISE and start creating some authorization policies based on that, but right now I just want them to authenticate.
Any help is appreciated, thanks in advance!

Cisco ISE with both internal and External RADIUS Server

Hi
I have ISE 1.2 , I configured it as management monitor and PSN and it work fine
I would like to know if I can integrate an external radius server and work with both internal and External RADIUS Server simultanously
So some computer (groupe_A in active directory ) will continu to made radius authentication on the ISE internal radius and other computer (groupe_B in active directory) will made radius authentication on an external radius server
I will like to know if it is possible to configure it and how I can do it ?
Thanks in advance for your help
Regards
Blaise

Cisco ISE can function both as a RADIUS server and as a RADIUS proxy server. When it acts as a proxy server, Cisco ISE receives authentication and accounting requests from the network access server (NAS) and forwards them to the external RADIUS server. Cisco ISE accepts the results of the requests and returns them to the NAS.
Cisco ISE can simultaneously act as a proxy server to multiple external RADIUS servers. You can use the external RADIUS servers that you configure here in RADIUS server sequences. The External RADIUS Server page lists all the external RADIUS servers that you have defined in Cisco ISE. You can use the filter option to search for specific RADIUS servers based on the name or description, or both. In both simple and rule-based authentication policies, you can use the RADIUS server sequences to proxy the requests to a RADIUS server.
The RADIUS server sequence strips the domain name from the RADIUS-Username attribute for RADIUS authentications. This domain stripping is not applicable for EAP authentications, which use the EAP-Identity attribute. The RADIUS proxy server obtains the username from the RADIUS-Username attribute and strips it from the character that you specify when you configure the RADIUS server sequence. For EAP authentications, the RADIUS proxy server obtains the username from the EAP-Identity attribute. EAP authentications that use the RADIUS server sequence will succeed only if the EAP-Identity and RADIUS-Username values are the same.

Authenticate Users against external RADIUS-Server

Hi,
i have some users in the local LDAP database of an 10.5 Server.
Is there a way to store their passwords on an external RADIUS-Server?
Thank you very much,
macservo
Message was edited by: macservo

CryptoCard does this.
We use it at one customer for L2TP VPN authentication.
This way the VPN user get's a yes or no to use the VPN server and then has to give his credentials: name and VPN shared secret or certificate (support for CryptoCard is in the OS X VPN client) to get on the network. The password is in 2 halves, one half is static and the rest is added to it from the Token.
You then have to authenticate to any service you want to use (Kerberos?).
We only had to alter a PPP config file on the OS X server and add a small file to both server (and client) to make it contact their Radius server instead of it using Apples regular internal VPN authentication (not the Radius one). And we had to add a shared secret corresponding to what was setup for the customer at CryptoCard (in the server only) for the OS X Server (Radius client) to CryptoCard server (Radius server) communication. You can't use Server Admin to alter VPN settings afterwards without messing up the PPP settings file.
Maybe possible to us it for Ethernet/Wireless 802.1X authentication too?
For just AFP server auth I don't know.

Configuring Cisco ISE for Authorization with External Radius Server attribute

Hi,
I'm trying to integrate an external radius server with Cisco ISE.
I created an External Identity Store>Radius Token Server.
I created a Identity Store sequence with just one identity store just as creadted above.
And I was able to authenticate successfully.
But when it comes to authorization.
I observed we just have one tab named Authorization while creating Radius Token server.
And it always refers to ACS:attribute_name.
If I want to define a IETF radius attribute, (lets say class with attribute id as 25), how could I do it.
In Cisco ACS we have a direct entry option in authorization tab where we can define the radius (IETF) attribute within Radius token server creation (within radius token server>Directory attribute tab).
How ever I try to define the IETF attribute here (class,IETF:Class) I am not able to authorize with this attribute value.
I tried with just one single authorization rule where it could hit.But observed it to go the default(as none of the rules defined matches the condition).
Can anyone guide me how can we define a IETF radius attribute for authorization within Cisco ISE and what policy could we set it to work as authorization.
Thanks in advance
Senthil K

This is the step of Creating and Editing RADIUS Vendors
To create and edit a RADIUS vendor, complete the following steps:
Step 1 From the Administration mega menu, choose Resources > RADIUS Vendors.
The RADIUS Vendors page appears with a list of RADIUS vendors that ISE supports.
Step 2 Click Create to create a new RADIUS vendor or click the radio button next to the RADIUS vendor that
you want to edit and click Edit.
Step 3 Enter the following information:
• Name—(Required) Name of the RADIUS vendor.
• Description—An optional description for the vendor.
• Vendor ID—(Required) The Internet Assigned Numbers Authority (IANA)-approved ID for the
vendor.
• Vendor Attribute Type Field Length—(Required) The number of bytes taken from the attribute value
to be used to specify the attribute type. Valid values are 1, 2, and 4. The default value is 1.
• Vendor Attribute Size Field Length—(Required) The number of bytes taken from the attribute value
to be used to specify the attribute length. Valid values are 0 and 1. The default value is 1.
Step 4 Click Submit to save the RADIUS vendor.

ISE External radius server

Hello,
Since the JRS roam servers have to be put in a Radius Server sequence on ISE, which node IP address is meant to be registered with JANET, PAN or each PSN IP address. I would have thought it to be the PAN since all the external radius servers are configured on the PAN, but thought I should ask just to be sure. Thanks

Yes, even though the configuration is done on the PAN, only the ise nodes that have the policy service role enabled, will be used to forward requests using the external radius proxy feature.

WLC WLAN Authentication from External RADIUS Server

Dears,
How to make WLC Receive PoD (Packet of Disconnect) from the RADIUS server to terminate the session and disconnect authenticating clients.
Thanks,

Hi Ahmed,
Its not documented well, but here is it:
CSCso52532 No Documentation for sending RADIUS Disconnect-Request (RFC 3576)
. If a user has to be logged out then, following attributes are expected
- SSH_RADIUS_AVP_SERVICE_TYPE(6) attribte with following value.
         SSH_RADIUS_SERVICE_TYPE_LOGIN(1)
       - SSH_RADIUS_AVP_CALLING_STATION_ID(31) - this is needed, if
              we want to delete particular user session via particular device
              (like PDA, Phone or PC)
       - SSH_RADIUS_AVP_USER_NAME(1)
. If a management user has to be logged out then, following attributes
are expected
- SSH_RADIUS_AVP_SERVICE_TYPE(6) attribte with following value
- SSH_RADIUS_SERVICE_TYPE_ADMINISTRATIVE
                      OR
   - SSH_RADIUS_SERVICE_TYPE_NAS_PROMPT
   - SSH_RADIUS_AVP_USER_NAME(1)
   - SSH_RADIUS_AVP_FRAMED_IP_ADDRESS(8)
Eg:
*Dec 17 12:59:08.926:   Packet contains 14 AVPs:
*Dec 17 12:59:08.926:       AVP[01] User-Name................................user@domain (17 bytes)
*Dec 17 12:59:08.926:       AVP[02] Nas-Port.................................0x0000000d (13) (4 bytes)
*Dec 17 12:59:08.926:       AVP[03] Nas-Ip-Address...........................0x0a0047fb (167790587) (4 bytes)
*Dec 17 12:59:08.926:       AVP[04] Framed-IP-Address........................0x0a003f1b (167788315) (4 bytes)
*Dec 17 12:59:08.926:       AVP[05] NAS-Identifier...........................wlcRM_1 (7 bytes)
*Dec 17 12:59:08.926:       AVP[06] Airespace / WLAN-Identifier..............0x00000004 (4) (4 bytes)
*Dec 17 12:59:08.926:       AVP[07] Acct-Session-Id..........................4b2a1d0c/00:1c:26:cb:27:71/4 (28 bytes)
*Dec 17 12:59:08.926:       AVP[08] Acct-Authentic...........................0x00000001 (1) (4 bytes)
*Dec 17 12:59:08.926:       AVP[09] Tunnel-Type..............................0x0000000d (13) (4 bytes)
*Dec 17 12:59:08.926:       AVP[10] Tunnel-Medium-Type.......................0x00000006 (6) (4 bytes)
*Dec 17 12:59:08.926:       AVP[11] Tunnel-Group-Id..........................0x3633 (13875) (2 bytes)
*Dec 17 12:59:08.926:       AVP[12] Acct-Status-Type.........................0x00000001 (1) (4 bytes)
*Dec 17 12:59:08.926:       AVP[13] Calling-Station-Id.......................10.0.63.27 (10 bytes)
*Dec 17 12:59:08.926:       AVP[14] Called-Station-Id........................10.0.71.251 (11 bytes)
*Dec 17 12:59:10.943: 00:1c:26:cb:27:71 Accounting-Response received from RADIUS server 10.0.71.249 for mobile 00:1c:26:cb:27:71 receiveId = 0
*Dec 17 12:59:34.044: Received a 'RFC-3576 Disconnect-Request' from 10.0.71.249
*Dec 17 12:59:34.044:   Packet contains 6 AVPs:
*Dec 17 12:59:34.044:       AVP[01] Nas-Ip-Address...........................0x0a0047fb (167790587) (4 bytes)
*Dec 17 12:59:34.044:       AVP[02] User-Name................................user@domain (17 bytes)
*Dec 17 12:59:34.044:       AVP[03] Acct-Session-Id..........................4b2a1d0c/00:1c:26:cb:27:71/4 (28 bytes)
*Dec 17 12:59:34.044:       AVP[04] Calling-Station-Id.......................10.0.63.27 (10 bytes)
*Dec 17 12:59:34.044:       AVP[05] Called-Station-Id........................10.0.71.251 (11 bytes)
*Dec 17 12:59:34.044:       AVP[06] Service-Type.............................0x00000001 (1) (4 bytes)
*Dec 17 12:59:34.044: Error cause 503 generated for 'RFC-3576 Disconnect-Request' from 10.0.71.249 (Session Identification attributes not valid)
*Dec 17 12:59:34.045: Sent a 'RFC-3576 Disconnect-Nak' to 10.0.71.249:3799
*Dec 17 12:59:36.561: ****Enter processIncomingMessages: response code=5
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Please Rate if helpful.
Regards
Ed

User authentication issues when auth by external radius server

We tend to use FF in a corporate environment to manage our networking devices (firewalls/switches/routers etc). Came across a bizarre problem under the following conditions:
ZyXEL Network Switch (GS2200-24) uses external authentication (RADIUS) to allow management and accounting of who makes changes.
When logging into the switch with FF, we get repeated prompts for user authentication. Eventually the user is logged in (and no it's not a typo!). Looking through the dev console in the beta, it seems to get a 401 unauthorised back from the switch once it tries to load another html file.
The browser *should* be presenting the same credentials to each called page within the site, it doesn't seem to :-(
No site added as it's an internal IP address....

We tend to use FF in a corporate environment to manage our networking devices (firewalls/switches/routers etc). Came across a bizarre problem under the following conditions:
ZyXEL Network Switch (GS2200-24) uses external authentication (RADIUS) to allow management and accounting of who makes changes.
When logging into the switch with FF, we get repeated prompts for user authentication. Eventually the user is logged in (and no it's not a typo!). Looking through the dev console in the beta, it seems to get a 401 unauthorised back from the switch once it tries to load another html file.
The browser *should* be presenting the same credentials to each called page within the site, it doesn't seem to :-(
No site added as it's an internal IP address....

ISE MAB to external Radius then MAB internal for Guest User auth

Hello guys,
we have the following requirements for our ISE Guest Access Deployment:
We want to provide guest access but only to non Company Laptops. To check if the Laptop is company or a non company Laptop we have have all MAC Addresses in our ACS server. So in my understanding we have to to the following.
Check the MAC Address against the External Radius Server (ACS)
If Access-Accept returns -> Deny Access
If Access-Deny returns -> Check MAC Address against Internal Endpoint Store
If User not found -> Guestflow
Right now i don´t no how i can sould design it but i need two Authentication Policys first for the redirect to the External Radius and then another one for check against internal Identity Endpoint Store. Am i right ? I don´t know if that is possible.
Really thanks for your help!!
Greetings
Philip

Let me ask you a quick question: Are all domain machines Windows and joined to AD?

ISE admin access, authentication against external radius

Please don't ask me why,
the customer insists and wants to be authenticated on ise (as admin) against an external (microsoft) radius server
is it possible while retaining internal admin users database in a sequence Internal>external_radius or internal>AD ?
thank you in advance for whatever may help

According to Cisco:
External Authentication AND external Authorisation for Admin acces son the ISE can only be done by using LDAP or AD.
For Radius Servers there are a solution for external Authentication and internal Authorisation on the ise:
External Authentication + Internal Authorization
When configuring Cisco ISE to provide administrator authentication using an external RSA SecurID identity store, administrator credential authentication is performed by the RSA identity store. However, authorization (policy application) is still done according to the Cisco ISE internal database. In addition, there are two important factors to remember that are different from External Authentication + External Authorization:
You do not need to specify any particular external administrator groups for the administrator.
You must configure the same username in both the external identity store and the local Cisco ISE database.
To create a new Cisco ISE administrator that authenticates via the external identity store, complete the following steps:
Step 1 Choose Administration > System > Admin Access > Administrators > Local Administrators.
The Administrators window appears, listing all existing locally defined administrators.
Step 2 Follow the guidelines at Creating a New Cisco ISE Administrator to ensure that the administrator username on the external RSA identity store is also present in Cisco ISE. Be sure to click the External option under Password.
Note Remember: you do not need to specify a password for this external administrator user ID, nor are you required to apply any specially configured external administrator group to the associated RBAC policy.
Step 3 Click Save .

Ise Authentication to two different forests second using External Radius, Not LDAP

Hi Guys,
I am hoping someone can help me. We currently have two AD forests one for staff and one for students. These forests do not have a two way trust between them nor do we want to. We currently have Ise 1.2 integration with our Student forest using AD working just fine. The ipads and other devices are playing nicely and cooperating well. We want to get our staff to be able to use ISE as well. Currently there is no way to use two AD forests so I was directed to use LDAP instead for the second domain. Unfortunatley after playing around with it LDAP doesn't support mschapv2 which our mobile devices like ipads do play nicely with. This causes an issue only because we would have to utilize certificates to get everything to work correctly. This is not the route we want to go. So i was speaking to Tac and they recommended using an External Radius server. Then modify my auth profiles to look for the domain name in the authentication string. If it starts for example student\ then i can have ise forward the auth request to the AD integrated PSNs for auth. If the auth string starts with staff\ for example i should be able to forward this request to my external radius server.
This sounds all good in theory but i have not found any documentation to support this to help me configure it. Has anyone tried this approach? Or have any leads on where i can find some good documentation as to what radius servers are supported. I am hoping Windows server 2008 R2 with a radius role installed, but i am just not sure.
If anyone can help i would greatly appreciate it.
Thank you
Joey

That is correct! Cisco ISE supports integration with a single Active Directory identity source. Cisco ISE uses this Active Directory identity source to join itself to an Active Directory domain. If this Active Directory source has a multidomain forest, trust relationships must exist between its domain and the other domains in order for Cisco ISE to retrieve information from all domains within the forest.
However, you may create multiple instances for LDAP. Cisco ISE can communicate via LDAP to Active Directory servers in an untrusted domain. The only limitation you would see with LDAP being a database that it doesn't support PEAP MSCHAPv2 ( native microsoft supplicant). However it does suppport EAP-TLS.
For more information you may go through the below listed link
http://www.cisco.com/en/US/solutions/collateral/ns340/ns414/ns742/ns744/docs/howto_45_multiple_active_directories.pdf

Cisco ISE 1.1.1 External RADIUS Proxy

Hello,
I am looking to port legacy ACS 4.2 "proxy distribution tables" to ISE 1.1.1 and I am currently a little at a loss where to start. I know I have to add the External RADIUS Server, Configure a RADIUS Server Sequence that will skip local authentications then send to the External RADIUS server. How do I match this authentication and how do I match it to an authorization rule? Is this the Network Access:Use Case equals proxy? There is no documentation on this, so any insights are greatly appreciated.

Thank you,
I duplicated the Dot1x Authentication Rule, and changed allowed protocols to "RADIUS Server Sequence : MySequence"
In the RADIUS Server Sequence under the advanced tab I have it set to "Continue to Authorization Policy'.
Which Authorization rule would match?
Network Access:RADIUS Server Sequence EQUAL MySequence
OR
Network Access:UseCase EQUALS Proxy
OR
None of the above?
Thanks

Authenticated on ISE 1.2 (as admin) against an external radius server

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