SSH Authentication: PIX-> RADIUS

Similar Questions

• GANYMEDE + SSH authentication problem Fo ASA

  Dear Sir

  I managed an ASA 5540 assets/failover pair. SSH authentication is performed via GANYMEDE + ACS located 4.2 in the same VLAN as the inside interface of the firewall. I have added two firewalls on the ACS using their inside as the interface IP addresses (using addresses active and reserve). I can succesfully authenticate and connect to the ASA assets without any problem. But on the SAA on hold, I get SSH prompt but I couldn't connect. When I see the log of failed attempts under GBA, I noticed that "Unknown SIN" for the ASA. How can I solve this problem?

  Best regards

  Abebe Amare

  Engineer network, VivaCell

  Hi Abebe,

  On the ASA high school, please check the following:

  SH failover---> and make sure that the secondary image is waiting ready and not missed.

  HS-Server aaa---> check the output and see if the ASA marked the radius server under the name 'UP' and the exchange of packets.

  Activate the following debugs and perform an authentication test as shown:

  Debug aaa authentication

  debugging Ganymede

  Debug ssh

  aaa-server host username authentication test "insert name of" passes "insert a password."

  Provide me with him debugs after taking on your username in it so that I can analyze.

  See you soon,.

  Christian V

• IOS/PIX RADIUS (01/09/00) on VPN 3002 user attribute

  Hi all

  I have a client VPN HW 3002, build an IPSec VPN to a VPN 3015 concentrator. An ACS (3.3) server is used for the external RADIUS authentication. There is a user configured on the HW 3002 client and server ACS (RADIUS). It authenticates successfully during the construction of the IPSec tunnel. Everything works fine, but I would like to use a separate ACL for that user to limit access to the network. Is it possible to use the IOS/PIX RADIUS attribute (01/09/00) for the download of ACL for this HW 3002 customer?

  I want the user configured for purposes of authentication (on the customer of HW 3002) to download an ACL to restrict access to the network.

  As always, thanks for your help.

  -Mike

  This should help you:

  http://www.Cisco.com/en/us/Tech/tk59/technologies_configuration_example09186a0080094eac.shtml

• Cisco VPN Client Authentication - PIX 515E-UR

  Hi all

  I need your expert help on the following issues I have:

  1. I would like to create more than 1 client VPN on my PIX-515E groups. This is so that I can give a different part of the internal network access to different type of VPN connection. For example, I want a group to have no XAUTH, while the other group must use RADIUS XAUTH. Is it possible for me to do this? I see the PIX automatically enable RADIUS on both groups of VPN clients.

  2. the RADIUS server is a Microsoft ISA with IAS server and it is located on the PIX inside interface. The VPN endpoint is external interface of the PIX. Is there a problem with this Setup? Do I need to have the RADIUS server that is located on the external interface?

  3 can. what command I use to debug RADIUS authentication?

  Thanks in advance for your help.

  Hi vincent,.

  (1) you can use the vpngroup *-authentication server ipaddress to specify the IP address of the Radius Server on a particular group... If you do not specify this, the authentication of the user is made locally... also check for vpngroup * order of user authentication

  (2) there should be no problem with the installation of your... should work fine... If the RADIUS is outdoors, it is subject to many attacks... so have it inside...

  (3) use the "RADIUS session debug" or "debug aaa authentication..."

  I hope this helps... all the best... the rate of responses if found useful

  REDA

• SSH version pix 6.3.3 is the name of user pix, you can connect to?

  I test the SSH version 1 connections in a 515 6.3.3 I configuration of usernames within the pix and ssh allows connections via running ip address. THS problem is I can only connect to the PIX via the username "pix" and it will only allow one connection at a time.

  Does anyone know why not accept logings via SSH using user names defined in the device?

  Thanks in advance. Mike

  Enter the commands 'aaa-server protocol LOCAL local' and 'ssh LOCAL console aaa authentication. "

  You will then be able to connect using the local usernames on the Pix.

• INTERNET AUTHENTICATION SERVICE RADIUS AUTHENTICATION USING

  Hi, I have problems with the same configuration. I authenticate remote users in AD using the Internet Authentication Service on windows 2003 as radius server configure the same VPN via ASA5520 profile. Please a knowledge or have the same information on this type of server configuration? Thank you very much.

  Greetings from the King.

  Elias Vucinovich.

  Have a look here.

  http://www.Cisco.com/en/us/products/HW/vpndevc/ps2030/products_configuration_example09186a00806de37e.shtml

  Rgds

  Jorge

• 802. 1 x authentication with Radius and win7 Mab

  Good afternoon!

  I have a question about 802.1 x I've set up a laboratory in which I have configured authentication mab with 802. 1 x, but I have a weird behavior of my network controller. On the switch (4948e), I see that the user is authenticated and authorized, and I can see my switch these outputs:

  21 April 15:13:30.263: % AUTHMGR-5-START: start "mab" for the customer (a01d.48ac.b7f
  (5) on the Interface item in gi1/11 AuditSessionID C0A8DF9C0000002E002F3DAC
  * Apr 21 15:13:30.267: % MAB-5-SUCCESS: authentication successful for the client (a01d
  . 48AC.B7F5) on the Interface item in gi1/11 AuditSessionID C0A8DF9C0000002E002F3DAC
  * April 21 15:13:30.267: % AUTHMGR-7-RESULT: authentication result 'success' of me
  ab' for the client (a01d.48ac.b7f5) on the Interface item in gi1/11 AuditSessionID C0A8DF9C00000
  02E002F3DAC
  * Apr 21 15:13:31.299: % AUTHMGR-5-SUCCESS: authorization succeeds in for the customer (a0
  1d.48AC.B7F5) on the Interface item in gi1/11 AuditSessionID C0A8DF9C0000002E002F3DAC

  If I type "see the authentication session", the corresponding output.

  Switch #show authentication sessions

  Interface MAC address method ID of Session of field status
  Item in gi1/11 a01d.48ac.b7f5 mab DATA Authz success C0A8DF9C0000002E002F3DAC

  The thing is that when I check my network controller, it said "authentication failure". That's what I've done so far:

  1. I restarted my pc, the same behavior.

  2. I disabled and enabled my network controller, the same behavior.

  3. I rebooted the switch and re-configured. Same behavior.

  4. I tried with another PC configuration. Same behavior.

  5. I changed the configuration of "user authentication" using dot1x EAP authenticator and it worked.

  This is the configuration I have on my switch:

  AAA new-model
  Group AAA dot1x default authentication RADIUS
  Group AAA authorization network default RADIUS
  start-stop radius group AAA accounting dot1x default
  AAA - the id of the joint session

  !

  control-dot1x system-auth

  !

  Switch #show run gigabitEthernet int 1/11
  Building configuration...

  Current configuration: 128 bytes
  !
  interface GigabitEthernet1/11

  Cx-to-Host description
  switchport access vlan 223
  switchport mode access
  Auto control of the port of authentication
  MAB
  end

  This is the first time I'll put up a configuration 802. 1 x. I'm doing something wrong?

  I really hope that I am not the only one with this kind of behavior!

  Thank you for any assistance you can give me!

  Status: Authz success

  This means that the port is open. Is this permanent? Keep looking at the output of the show a few minutes see if it tries to dot1x too. Can you ping from the PC?

  As authentication of 802. 1 X is enabled in the properties of the map NETWORK PC that you can expect dot1x method runs on the switch and eventually respond to the computer with auth fail. Authentication in the PC box is not necessary for MAB.

  What type of RADIUS server you use and there 802.1 policy X in addition to MAB policy?

  IP address: unknown

  This means that the switch did not recognize the IP address of the host, probably due to the lack of

  analysis of IP device

  command. But it is not necessary for the plain MAB or dot1x.

• A problem when authentication via Radius ASA

  Hi all

  Please give me a helping hand. I have a problem when through ASA 5520 via Radius Authentication for ACS 4.0 via the VPN device. I need to configure secure authentication and NAC for remote user VPN. It simply does not work, but it works when you use Ganymede so all the connection seems to be ok as ACS succesfully authenticate a remote via MS AD VPN user when you use Ganymede. But I read that I can not use NAC when Ganymede using, I'm good? ASA and ACS journals indicate a problem with the shared key but I already double checked the key on both sides, the IP address is correct on SAA and I also tried all possible methods of RADIUS on SAA. Any idea where might be a problem?

  Hello

  When you use ACS 4.0, then make sure that the AAA Client for ASA entry you created on GBA, if under a NDG, then make sure that there is no key to the NDG level.

  Otherwise, pass entry client ASA as RADIUS ACS in NDG (Unassigned) on ACS.

  Kind regards

  Prem

• Centralized authentication (IAS/Radius) in IDS/IPS 4260

  All,

  I was in charge of configuring authentication centralized via IAS for all IPS/IDS devices in the enterprise.  After much invest I'm pretty sure that my goal is not available due to the limitations of the device.  However, I'm still not sure at 100%.  My questions are:

  1 is anyone can provide a link or any documentation showing permanently the IPS 4260 supports Radius IAS authentication?

  a. If no, what would be a suitable alternative? CSM, etc.. ?

  Cisco IPS sensors do not currently support authenticated access to the outside.  They can't stand

  assignment of authentication and the role of user/password local name.

  Scott

• Clarification of authentication PIX NAT and BGP

  Hi all

  I did some tests on PIX and crossing this area of BGP traffic.

  When I configure the PIX to do no config NAT (NAT 0) and configure a BGP session between two routers (one inside) and the other on the outside net everything works fine.

  When I configure BGP authentication, I may add the keyword "norandomseq" NAT and STATIC commands cause BGP auth embedded TCP header for authentication information. It's OK.

  But when I reconfigure the PIX to make real NAT between the inside and the outside network and reconfigure my routers, BGP session doesn't happen if BGP authentication has been disabled. If I enable authentication BGP, I had errors of MD5 authentication on routers. (Note "norandomseq" is enabled for NAT and STATIC instructions)

  Now my question is BGP unsupported for NAT on PIX sessions? (for my tests, it has worked for NAT 0 config, also all the examples that I always found working with NAT 0 config)

  I think the problem is that the TCP pseudo-header changes to the NAT device and therefore it will never work right? Or is there any correction internal bgp which should fix this? I think it's almost impossible that this is known with the password simple bgp, right?

  Concerning

  Michael

  Your reasoning is dead the. BGP authentication works like this: the sending peer BGP takes and MD5 hash of the TCP header before sending the package and includes this hash in the TCP header option. The BGP receiver receives the packet and also did a MD5 hash of the TCP header. Then, it compares its value to the value sent by the sender of BGP. If they match, all right. If they fail, the packet is ignored and you get error messages, did you see.

  Because the NAT will change the address source TCP, the TCP header will be changed which should bring a different MD5 hash for the receiver that the sender originally sent.

  BGP peer by a PIX authtenticatio is supported only in a Nat 0 or static identity with the norandomseq option is enabled.

  Make sense?

  Scott

• ISE Sponsor authentication via RADIUS

  My client demand change us the way the sponsor users are authenticated and authorized to access portal Sponsor of ISE.

  Their similar to the request of the ISE AD via a RADIUS server first. They said "avoid sending credentials of the AD to ISE directly. Under this condition,.

  My research and limited knowledge give to assume I have to define a RADIUS Proxy

  I think I can define an external RADIUS server, but I wonder if this creation, it would be available as a Source of identity for "portal Sponsor sequence.

  If this is not the case, how can I add this? After that, what conditions or attributes should I look for to use in the 'strategy of group sponsor' in order to filter the name of user and password and allow access to employees and deny access to everyone?

  I'd appreciate advice that you can give me to offer the best recommendation to the client.

  Kind regards.

  Daniel Escalante.

  Hi sliman,.

  Unfortunately, this document is not relevant to what Daniel is trying to achieve.  There need to be able to refer to a RADIUS server as part of the Sponsor authentication process, that is not possible today.  The only possibilities are that I have indicated in my original answer.

  Richard

• Authentication via Radius VPN

  I wonder if anyone has experience due to error.

  I have cisco ASA firewall, I configure AAA authentication to my Active Directory server. In my Active Directory server, I set up my ASA firewall as my Radius client.

  For authentication user my VPN, I set up my VPN user to authenticate through Active Directory server.

  In my Active Directory server, I have several groups. Some users are ABC GROUP, most of the users are in GROUP-XYZ.

  Users who are members of the ABC GROUP can connect successfully.

  Users who are members of the GROUP-XYZ cannot connect, keep Cisco VPN client to invite users to authenticate.

  ASA firewall gives error: load error processing useful: payload ID: 14

  When I add the user to become a member of the ABC GROUP, the user is able to connect successfully.

  Cisco ASA firewall, I see not all configurations that associate on behalf of Active Directory group.

  Hello

  Check the output of radius aaa/debugging debugging on the SAA for clues.

  I guess you are using NPS Microsoft, search newspapers all index.

  My assumption (a wild guess): check on your Active Directory directory group policies, check the 'grant dial in' setting and next to her another similar setting (I forgot the details, if there is more than one year, when I finally saw him), compare with NPS documentation and compare the two groups (pass/fail).

  Also check your policies for authentication on the network POLICY server if you have more than one.

  Hope that helps,

  MiKa

• Telnet/SSH to PIX outside interface

  Hi all

  Is it possible to allow a telnet or ssh connection to a PIX via the external interface? The documentation I have (seems) declare that telnet access via the external interface 'requires' IPSEC - it is not clear if this is a recommendation or a requirement.

  In addition, the documentation indicates that no traffic will be through a PIX if the inside and the outside interface are configured with the same security level - does that mean that no traffic will pass "full stop." or the traffic will pass if the appropriate ACL/ducts are configured?

  Advances in thanks

  You cannot telnet to the external interface, but you can SSH to it:

  http://www.ciscotaccc.com/security/showcase?case=K75783563

  Traffic will be able to pass on the same level of security if you are running a current version (> = 7.0) of the PIX and configure the feature of "permit same-security-traffic inter-interface":

  http://www.Cisco.com/en/us/products/sw/secursw/ps2120/products_configuration_guide_chapter09186a0080450b7c.html#wp1039276

• AnyConnect authentication with RADIUS secure method

  I was able to correctly configure Cisco AnyConnect VPN on ASA 5520 with code 8.4.  I put it to authenticate to the RADIUS (Microsoft Windows 2008 Server NPS server) server.  I noticed something on the server under "constraints and the method of authentication.  I chose MS-CHAP-v2, but it is considered less secure authentication methods.  I can click on Add and choose other methods of authentication such as smart card or other certificate, PEAP, EAP-MSCHAP VERSION 2.  I chose PEAP, but then the VPN does not work.

  So first of all is it really important if I just leave it to MS-CHAP-v2?  Because from my understanding is that AnyConnect authenticate with the ASA and then ASA in the backend communicates with the RADIUS server to security point of this scenario should - not be enough as no UN encrypted or secure less information is available to the outside world?

  Secondly there is a documentation on the use of PEAP with Cisco AnyConnect?

  AnyConnect supports EAP-GTC, EAP-MD5 and EAP-MSCHAPV2.

  From the safety point of view, it does not matter much what you use as IKE still will be encrypt traffic between the client and the head of the line.

  Between the head and the RADIUS, the password is encrypted as well.

  From a to z, you good to go.

  See you soon,.

  Olivier

• Slow authentication using RADIUS 2FA and a personalized UPN name suffixes

  I have a several tenants view implementation that uses a RADIUS based 2FA and customized for each tenant name UPN suffixes.  If by connecting with the old style Domaine\SamAccountName, authentication is instant and the user is sent to their VDI pool without problem.  If sign in with name suffix custom UPN ([email protected]) authentication 2FA is instantaneous (checked with the supplier 2FA and forest exploitation), but a second ago 45 delay before the user is authenticated on view and crossed over to the pool.

  I've read several posts that reference a general problem with the personalized UPN name suffixes and am looking for management to address the issue of the or a workaround for now (which will always use the custom UPN suffix)

  TIA

  Is 45 seconds before or after the subsequent username password prompt?

  RAY delays can be caused by setting a no port zero counts for a RADIUS server that does not support RADIUS account management. If your RADIUS server supports accounting on the specified port, a value of zero to disable.

  If the delay is after the username password prompt is probably something else.  Monentreprise.com cannot be resolved in DNS? If you disable authentication RADIUS is also slow UPN login?

  As Mike says newspapers should also help.

  Mark