ISE : Radius Request Drop

I've implementing cisco ise. But i got something weird. The communication cisco ise and switch has down about 1 hours, and when i check on monitoring, the report just said Radius Request Drop. The communication is good before this happening. Do you know what is happen?
Regards,
Gandhi

I think the problem has solved now.
But, what i want to know is what is happening, there is a bug on Cisco ISE?
Regards,
Gandhi

Similar Messages

ISE v1.2 - Status-Server - 5405 RADIUS Request dropped

Just a note:
Some devices send regular RADIUS status messages;
The ISE drops these as
Event: 5405 RADIUS Request dropped
Failure Reason: 11031 RADIUS packet type is not a valid Request
Root cause: RADIUS packet type is not a valid Request.
Wireshark shows:-
Code: Status-Server (12)
Attribute Value Pairs:
AVP: l=6 t=Service-Type(6): Shell-User(6)
AVP: l=18 t=Message-Authenticator(80): df48bb4b50f0a772bd7c891ef6548c68
AVP: l=6 t=NAS-IP-Address(4): 10.1.1.1
I believe that ISE should accept and respond to these messages RFC5997 up2866.
A RADIUS server or proxy implementing this specification SHOULD respond to a Status-Server packet with an Access-Accept (authentication port) or Accounting-Response (accounting port). An Access-Challenge response is NOT RECOMMENDED. An Access-Reject response MAY be used.

Neno
Nothing to do with that,
The devices will use RADIUS to authenticate fine; databass, credentials, etc fine.
However they send keepalives to validate the RADIUS server is still there. ISE doesn't implement this and ISE logs get full of rejections. The end devices are unable to prioritise which ISE to used based on up/down. But still work.
This was just a note to everyone so they are aware of the issue,

ISE-5443 RADIUS request dropped due to reaching EAP sessions limit

Hi Guys,
I am getting the below error message from two PSNs (out of 4) & resulting 95% failed authentications on ISE
"5443 RADIUS request dropped due to reaching EAP sessions limit"
Could not find any documents/reference & trying to get on hold TAC in the mean time.
If anyone of you know what could it be, pls share your inputs
TIA
Rasika

Hi Scott,
Thanks for that..
here is bit more information about this evnts log in ISE system (1.2 Patch 4).
Event: 5405 RADIUS Request dropped
Failure Reason :5443 RADIUS request dropped due to reaching EAP sessions limit
Resolution : Wait a few seconds before invoking another RADIUS request with new EAP session. If system overload continues to occur, try restarting the ISE Server
Root cause: A RADIUS request was dropped due to reaching EAP sessions limit. This condition can be caused by too many parallel EAP authentication requests.
Worked with TAC & restarted the service of one PSN node & that brings that node to normal condition & removed the other PSN form the F5 pool until TAC analyze gathered support bundle from that.
It is not heavily loaded environment (3k wireless clients) at the moment & bit scary since we are expecting around 15k when students are back in early March. Authentication failure rate is around 100 in every 15-20s interval. Not sure what is the limitation of the ISE system itself to handle number of EAP sessions per second.
Rasika

Problem in ACS5.1 : "EAP session timed out", "RADIUS Request dropped "

Hi .
Part of my access points do not want to authenticate wi-fi users (through Radius server and Microsoft AD) .
The scheme is: wi-fi PC-access point -ACS server 5.1 (Radius)-Microsoft AD
After I configured some AP, next logs we can see :
EAP session timed out (many)
RADIUS Request dropped (many)
Could not establish connection with ACS Active Directory agent
User's Groups retrieval from Active Directory failed
The user is not found in the internal users identity store.
Another part of devices (AP) works well.
Anyone can help me to solve this problem please?

Hi Nicolas.
In logs usually we see some steps of beginning relations between devices. But here we see only one log line:
What can it mean?
The other messages seem to indicate that there is a problem with your AD. Did you test the bind ? Can you retrieve the AD groups list from ACS ?
Yes, we tested relations between AD and ACS, AD groups list retrieve fine from AD. In addition half of devices in network works fine: wi-fi devices authenticates excellent .
Do you use AD with the ACS for another part of your network that would be working fine ?
Yes, there is single AD and ACS.

ACS 5.2 Error message: 5405 RADIUS Request dropped

The error message "5405 RADIUS Request dropped", what does it meen ?.
We have implemented 802.1X on a C4506 switch running IOS 12.2(53), it has worked fine for about 3 months but now I get users not able to authenticate. In the loggs on the ACS I get the obove message.
ACS 5.2 is running 5.2.0.26 Build 3075.
Has anyone have hade the same problem ?

It's fixed in 5.3...
http://www.cisco.com/en/US/docs/net_mgmt/cisco_secure_access_control_system/5.3/release/notes/acs_53_rn.html
...or stop/start ACS as a workaround till it's happen again.
Kind regards,
Ron

After ISE 1.2 upgrade I get "5413 RADIUS Accounting-Request dropped."

Hello,
I have a two admin node setup for ISE. I just upgraded one of my two ISE Admin nodes to Version 1.2. I still have one of my admin nodes at 1.1.4. When I disable my Version 1.1.4 node and allow wireless authentications to be handled by the Version 1.2 node I get the message..."5413 RADIUS Accounting-Request dropped". None of my wireless edge devices will be allowed on the network during this time. When I re-enable my 1.1.4 node my wireless devices are then allowed on the network.
I am currently using ISE to authenticate wireless connectivity.
I also get the failure reason... "11038 RADIUS Accounting-Request header contains invalid Authentication field".
Any ideas?
Bob

The 5413 RADIUS Accounting-Request dropped may be because the session was active on ISE1 and is now sending update messages to ISE2. Also, verify your shared secret radius key matches on both the wlc and ISE servers. I would try clearing the WLC connection for the test user when switching. Just turning off wireless and back on doesn't do it. Also, are you using PEAP-MSChapv2 or EAP-TLS for authenticating the clients. What type of certificate is presented, public or private?

ISE PSN rejecting RADIUS request

Hi,
We have a distributed ISE infrastructure version 1.3.
We begin noticing the following problem.
Randomly the PSN's started dropping radius requests.
Basically they didn't serviced any client.
It looked like this bug:
ISE PSN rejecting RADIUS request; deadlocks found @ catalina.out
CSCur43427
Symptom:
++ CU runs distributed deployment; 2PSN +MnT +PMN;
++ PSN "node status were up during the issue;
++ PSNs were rejecting RADIUS request; ICMP reachability to PSN were OK;
++ both wired and wireless are affected
++ removing accounting from both foreign/anchor did not fix the issue;
Conditions:
++ ISE 1.2.0.p10
++ happens every 2-3 weeks;
Workaround:
++ restart ISE services;
So we installed patch 2.
But now we got the same problem and there is no newer patch.
Did anyone encountered this also?
thanks,
laszlo

We've also encountered this with 1.3 and logged a TAC case but unfortunately they weren't able to determine the cause due to not enough detail. They suggested changing the log level for runtime-AAA and prrt-JNI to debug temporarily and when it happens again, before restarting the PSN, download the logs from it to supply to TAC.

ISE 1.3 not receiving Radius requests from WLC 5508 ver 8.0.110.0

Hello all. I just implemented ISE 1.3 at a customer site. added a WLC running 8.0.110.0 using its mgmt address with a RADIUS preshared key. On the WLC, I created to SSIDs, corp and guest.
For corp I configured WPA2 and AES and forwarded Radius requests to my 2 ISE node PSN interfaces
For the guest I configured MAC filter with advanced features AAA overide and Radius NAC - per Cisco's documents
The corp forwards Radius requests to ISE, the guest does not. I get nothing from the guest.
I configured the WLC step by step from the Cisco document. I have completed over 10 ISE implementations in the last year using ISE 1.2 and WLC 7.x and have never run into this issue before.
Any help will be much appreciated.

This issue has been resolved. The issue was that for the guest SSID MAC filtering was enabled as required, but they had the test PCs on a mac filter bypass list for that SSID in the WLC. This was automatically authenticating the PC, and therefore not forwarding the RADIUS to ISE.
Once we removed the PC from the MAC filter list in the WLC, the authentications were forwarded to ISE as desired.

ISE Radius - Access-accept is returned with no autorization policy

Hello,
With ISE Radius service / PAP, the authentication passes OK, but the Network Element which send the autorization request, returns message "not enough user priviledges to execute command" and the HTTP page is blank.
The reason for that is, the Network Element is sending in the Access-Request with Service-Type value = 8, which means Authenticate-Only (and this can be seen at ISE . This causes the Radius server to authenticate, but not to send the authorization parameters back to the NE in the Access-Accept, causing the login to fail. A bit inside of the RFC:
5.6. Service-Type
    Description
       This Attribute indicates the type of service the user has
      requested, or the type of service to be provided. It MAY be used
      in both Access-Request and Access-Accept packets. A NAS is not
      required to implement all of these service types, and MUST treat
      unknown or unsupported Service-Types as though an Access-Reject
      had been received instead.
   Type
       6 for Service-Type.
      The Value field is four octets.
       1      Login
       2      Framed
       3      Callback Login
       4      Callback Framed
       5      Outbound
       6      Administrative
       7      NAS Prompt
       8      Authenticate Only
       9      Callback NAS Prompt
      10      Call Check
      11      Callback Administrative
There is no way to modify the value on the network element in the Access-Request packet.
Question: Is there a way to for the Cisco ISE to ignore the service type value (Authenticate Only), and return the autorization parametes back with the Access-Accept packet?
Thanks,
Lucho

Lucho,
I Checked the rfc and the answer is no, rfc states that no authorzation information needs to returned for this request.
http://www.ietf.org/rfc/rfc2865.txt
Thanks,
Tarik

WDS including infrastructure AP IP address in RADIUS request

Hi Cisco community,
Is there any way that an access point configured as a WDS pass information about the infrastructure access point to the RADIUS server where it is authenticating. So I basically need the IP address of the AP where the client is authenticating. Is there a RADIUS attribute to enable? I know that WLCCP debug messages include the IP of the AP authenticating to the WDS, but how can I forward that IP to the RADIUS request. Or is there a way to have a WDS authenticate as the infrastructure AP.
Thanks,
Manny

Hi, My name is Eric Moyers. I am a Network Support Engineer in the Cisco Small Business Support Center. Thank you for using the Cisco Community Post Forums.
What hardware is this concerning? Within Small Business, there are none that I am aware of that can do this. This sounds like it would be better served in one of the Enterprise threads. I can assist you getting there once I know which hardware you have.
Thanks
Eric Moyers
Cisco Network Support Engineer
SBSC Wireless and Surveillance SME
CCNA, CCNA-Wireless
1-866-606-1866

SQL access to interface port descriptions or via radius request?

Does anyone know how to include port descriptions within a radius request or of a database that I can pull the information from a Using a SQL statement. We have Cisco CER, Cisco works, Cisco prime or am looking to populate my own database. Thanks

Q: Do I simply install calls to the entry points in the RS-232 Library using COM6 as the port ID?
A: Yes
Q: I guess I also want to know if the RS232 Library functions all interface to the hardware through the Windows API?
A: Yes
Keep in mind that the objective of any Virtual COM Port Driver is to mimic a native com port. If you ever run into the situation where the native com port works, but your converter's com port doesn't, you should contact the manufacturer. This of course refers to calls to the Windows serial API, direct writes to memory are not included in this statement.

Radius request source interface

HI !
I have controllers WLC 5508 and release 7.4.
If I, in the WLAN configurations about AAA and radius servers, use the possibillty to change the radius request source interface by "Radius Server Overwrite Interface" it will, use the interface that the SSID is configured to, as a source address.
If my SSID is configured to a interface group, what will happend then??
Will only the first configured vlan be used as a source or will he vary the source address between the vlan included inte the interface group?
(It, of cource, need to be the the same every the time, every request and predictable)
/mats

Hi,
Yes, I did get an answer on my tac-case on this. It will use the first configured vlan in the group.
I have had it configured and use "radius server overwrite" on the interface group right now. It working this way since these months. It seems to work well. :-)
/mats

The RADIUS request did not match any configured connection request policy (CRP)

I setup NPS server and added a RADIUS Client access point, my project is to get a wireless user to authenticate using his/her AD credientials, my problem is i can't seem to authenticate my user
my NPS server is giving me this error log under Event Viewer > Server Logs > Network Policy and Access Services
    Reason:                The RADIUS request did not match any configured connection request policy (CRP).
but from my understanding i don't need to setup Connection Request Policies because i am using Network Policy
Please Help!

thanks for your reply, i setup a new NPS policy here is my error log
Network Policy Server denied access to a user.
Contact the Network Policy Server administrator for more information.
User:
    Security ID:            NULL SID
    Account Name:            csdomain\rsingh
    Account Domain:            csdomain
    Fully Qualified Account Name:    csdomain\rsingh
Client Machine:
    Security ID:            NULL SID
    Account Name:            -
    Fully Qualified Account Name:    -
    OS-Version:            -
    Called Station Identifier:        0026.992f.6761
    Calling Station Identifier:        2477.0392.b0f8
NAS:
    NAS IPv4 Address:        192.50.2.2
    NAS IPv6 Address:        -
    NAS Identifier:            MYWAP
    NAS Port-Type:            Wireless - IEEE 802.11
    NAS Port:            35290
RADIUS Client:
    Client Friendly Name:        MYWAP
    Client IP Address:            192.50.2.2
Authentication Details:
    Connection Request Policy Name:    PEAP
    Network Policy Name:        -
    Authentication Provider:        Windows
    Authentication Server:        MYSERVER.csdomain.com
    Authentication Type:        EAP
    EAP Type:            -
    Account Session Identifier:        -
    Logging Results:            Accounting information was written to the local log file.
    Reason Code:            22
    Reason:                The client could not be authenticated because the Extensible Authentication Protocol (EAP) Type cannot be processed by the server.

Add domain name to radius "request"?

Hi there.
Is it possible for one to access a clientless portal/Anyconnect VPN, login using only the initials and not the full domain name?
In a multiple user/domain environment?
Example:
test instead of testdomain/test
Can the ASA pass the full name testdomain/test on if the users are identified by a specific portal page/group?(Adding the domain to the radius request)
This is meant to be in a environment with multiple domains, so i need as much seperation as possible(But still easy workflow from the user perspective).
Or how is this done? Thanks.
Hope you understand my question.
/Søren

Is it possible when choosing a seperate portal to add the domain to the user info before passing it to the Radius server?
/Søren

Getting an AP to send SSID in radius request

Hi everyone,
I am trying to get my Cisco AP's to send the SSID or some kind of identifier of the SSID in the radius request attributes.
This is needed for user realm mapping on my radius server.
Any ideas on how this could be achieved?
Nicolai

Nicolai,
The SSID is included in the 'Called-Station-ID' attribute as part of the RADIUS Access-Request.
Quote from RFC 3580:
http://www.ietf.org/rfc/rfc3580.txt
3.20. Called-Station-Id
   For IEEE 802.1X Authenticators, this attribute is used to store the
   bridge or Access Point MAC address in ASCII format (upper case only),
   with octet values separated by a "-". Example: "00-10-A4-23-19-C0".
   In IEEE 802.11, where the SSID is known, it SHOULD be appended to the
   Access Point MAC address, separated from the MAC address with a ":".
   Example "00-10-A4-23-19-C0:AP1".
The RADIUS must then retrieve the information from the RADIUS Access-Request packet.
Regards,
Anders

ISE : Radius Request Drop

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