WHEN NEGOTAITE ISAKMP IN FASHION MAIN IKE PHASE 1

Similar Questions

• Understanding, IKE Phase I and II

  Hi, I've been through the concept of a lot of time, but what confuses me, is encryption algorithm and a key to the DH, how they go hand in hand in IKE phase II.  I understand phase I authenticates the vpn peers and negotiates policy ISAKMP which includes Exchange Diffie-Hellman and symmetric encryption example WITH or TDES.  What I don't understand is what Exchange Diffie-Hellman (key derived from the public/private function) is used for, it encrypts the exchange of IKE2 already encrypted with DES/TDES/AES.

  Also if m do not use PFS in Phase II, would I by using the same key DH derived at the time of the phase I, if yes which is secure enough?

  Another issue is when the peers authenticate each other and then the protocol IKE phase I policy are exchanged, happens in clear text?

  Could someone please explain the process step by step in the two phases stressing precisely on the Diffie-Hellman exchange and how it is used with encryption algorithms.

  Concerning

  Sonu

  Sonu,

  Looks like you want to go back to RFC to take a peek. We have also a series of documents explaining IKEv1 and goes with debugging.

  What you miss is that in IKEv1 (main mode), messages, 5 and 6 are already encyrpted, while the previous, including Diffie-Hellman exchange are not.

  MM5 MM6 is when we exchange their identities. Those who must be protected, where the DH before negotiating.

  Phase 2 is a separate Exchange protected with the result of the phase 1. The role of DH for the phase 2 is to ensure that the encryption keys are not from previous key material.

  Start here:

  http://www.Cisco.com/en/us/Tech/tk583/TK372/technologies_tech_note09186a0080094203.shtml

  http://www.Cisco.com/en/us/products/ps6120/products_tech_note09186a0080bce100.shtml

  https://supportforums.Cisco.com/docs/doc-18522

  M.

• Configuration of VPN - IKE phase 1...

  I have some confusion in the VPN configuration... In my ASA below mentioned IKE phase 1 already configured setting.

  crypto ISAKMP policy 1

  preshared authentication

  the Encryption

  sha hash

  Group 2

  life 43200

  crypto ISAKMP policy 9

  preshared authentication

  the Encryption

  md5 hash

  Group 1

  life 86400

  crypto ISAKMP policy 10

  preshared authentication

  the Encryption

  sha hash

  Group 2

  life 86400

  crypto ISAKMP policy 30

  preshared authentication

  the Encryption

  md5 hash

  Group 2

  life 86400

  Crypto isakmp nat-traversal 20

  Last week, I configured a new L2L VPN. For IPSec phase, I have added the below mentioned lines...

  card crypto toremote 20 match address remotevpn2

  card crypto toremote 20 peers set x.x.x.x

  toremote 20 set transformation-strong crypto card

  life safety association set card crypto toremote 20 28800 seconds

  Now my question is the seq n20 crypto map is not matched with any IKE phase 1 seq no (1,9,10,30) that is already configured. But the VPN is up and working fine. How it associate a particular phase of IKE IPsec?

  If you want to configure a new virtual private network with different parameters in the IKE phase 1like 3DES, SHA1, life 86400, what are the configuration that I have to do in phase 1 of IKE?

  Kind regards

  SOM

  isakmp policy number and the number of ipsec policy do not match your ASA or with the other end. They are two distinct phases of negotiation. The ASA will compare your policy at the other end, starting with the smallest number of policies, until a match is found.

  I usually put safer policies first (i.e. with the lowest number of the police).

  To create a new policy, just add it with a new policy number, anywhere where you want in the order.

• Ports used in IKE Phase 1

  Hello world

  He had to confirm IKE Phase 1

  We use port UDP 500

  IKE Phase 2, we use ports

  ESP - 50

  NAT - T UDP 4500

  ESP TCP-1000-50
  NAT - T UDP 4500
  TCP-1000

  Concerning

  Mahesh

  IKE phase 1 (main mode/aggressive mode) is udp src and dst 500

  Phase 2 of IKE could be:

  • Protocol IP 50 (ESP)
  • NAT - T is udp src (customer) ephemeral dst (server) udp 4500
  • In former VPN clients tcp encapsulation was CBC (customer), ephemeral dst (server) tcp 10000 (10,000 in US) and 10,000 in most of the other countries

• Pre shared keys used in IKE Phase 1

  Hello world

  Need to confirm if we use the buttons pre shared during IKE Phase 1 main mode and aggressive mode

  Concerning

  MAhesh

  The pre-shared key is used in both modes of IKE Phase I. With pre-shared keys, the same preshared key is configured on each IPSec peer. IKE peers authenticate each other computer and sending a hash key data that includes the pre-shared key.

• How to determine when a subsequence in the main group of MainSequence was called simply?

  I want to implement a custom for my operator Interface progress bar and I've seen some tutorials OR how do but IMHO, the solution is very ugly in which the MainSequence hardcoded events UI message statically send completion percentage.

  Which, according to me, a better method would be to have the reminder SequenceFilePostStep increment a counter FileGlobal only when a subsequence in the main group of MainSequence has been called.  I already understood how to get the total number of subsequences MainSequence into the main group using the expression:

  RunState.SequenceFile.AsSequenceFile.GetSequenceByName ("MainSequence"). GetNumSteps (StepGroup_Main).

  It is the bold part above that I don't know how to do and that you would be grateful for assistance in this regard.  Once I have these two values that I can simply divide the two and send a UserMessage interface operator with completion percentage.

  Thank you!

  Hi Sean,.

  Instead of having the SequenceFilePostStep in your file of the client's sequence, you can put the statement step in the process template using a reminder of ProcessModelPostStep.

  Previously, when I said the words, I meant the prerequisite, but I think that you understood what I meant...

  It's a thing of style and readability - a precondition will make your movie look nice and compact, whereas an IF / END block improves readability, etc..

  I am currently writing sequences to use flow control measures (IF / END, SELECT / CASE, FOR, WHILE) for USE related to logical tests, where decision making or a loop is part of the requirements customer and pre conditions TestStand logic such as this.

  See you soon,.

  Charlie

• ASDM IKE Phase 2 parameters

  Hello.

  I'll put up the part remote site VPN and you can't find IKE Phase 1 settings in ASDM.  Can someone tell me where I can find the phase 2 settings?  Thank you.

  If this is the case, by ASDM 6.3 above, you can use link below to verify:

  Go to the Configuration > VPN Site to Site > advanced > Crypto Maps pane.

  http://www.Cisco.com/en/us/products/ps6120/products_tech_note09186a0080b9b90a.shtml#asdmconfig

• IKE Phase 2 SA expires immediately - site 2 site ipsec over gre

  Hello

  I'm migrating a config site to IPsec for a new 'face', a ASR1001 router VPN (ipsec-tools + racoon) Linux machine.

  As the Debian Linux does not VTI, I use a card encryption.

  The config of work is given below, with corresponding newspapers, with Linux.

  When I try to apply what worked before config for the ASR1001, I get the following error:

  000855: * 18:28:21.859 Dec 12 UTC: % ACE-3-TRANSERR: IOSXE-ESP (14): IKEA trans 0 x 1350; opcode 0 x 60; Param 0x2EE; error 0 x 5; Retry cnt 0

  Suspicion about the error code 0 x 5?

  The newspapers aside Linux show sync issues...

  12 Dec 18:50:19 FAKE-AUCH-GW racoon: INFO: new phase 1 opening of negotiation: 194.214.196.2 [500]<=>130.120.124.8 [500]

  12 Dec 18:50:19 FAKE-AUCH-GW racoon: INFO: mode of Identity Protection.

  12 Dec 18:50:19 FAKE-AUCH-GW racoon: INFO: received Vendor ID: CISCO-UNITY

  12 Dec 18:50:19 FAKE-AUCH-GW racoon: INFO: received Vendor ID: DPD

  12 Dec 18:50:19 FAKE-AUCH-GW racoon: INFO: received Vendor ID: draft-ietf-ipsra-isakmp-xauth-06.txt

  12 Dec 18:50:19 FAKE-AUCH-GW racoon: INFO: ISAKMP - ITS established 194.214.196.2 [500] - 130.120.124.8 [500] spi: 5f8e6339fb954d45:e513d25e42e19d11

  12 Dec 18:50:20 FALSE-AUCH-GW racoon: INFO: new phase 2 negotiation opening: 194.214.196.2 [500]<=>130.120.124.8 [500]

  12 Dec 18:50:39 FAKE-AUCH-GW racoon: INFO: answer for negotiation of the new phase 2: 194.214.196.2 [500]<=>130.120.124.8 [500]

  12 Dec 18:50:50 FAKE-AUCH-GW racoon: NOTIFY: the packet is retransmitted by 130.120.124.8 [500] (1).

  12 Dec 18:50:50 FAKE-AUCH-GW racoon: INFO: IPsec - SA has expired: ESP/Transport 130.120.124.8 [500]-> 194.214.196.2 [500] spi = 30866420 (0x1d6fbf4)

  12 Dec 18:50:50 FAKE-AUCH-GW racoon: WARNING: EXPIRES PF_KEY message received from core for SA under negotiation. Judgment of the negotiations.

  12 Dec 18:50:50 FAKE-AUCH-GW racoon: INFO: IPsec - SA has expired: AH / Transport 130.120.124.8 [500]-> 194.214.196.2 [500] spi = 258959 (0x3f38f)

  12 Dec 18:50:59 FAKE-AUCH-GW racoon: INFO: new phase 2 negotiation opening: 194.214.196.2 [500]<=>130.120.124.8 [500]

  12 Dec 18:51 FAKE-AUCH-GW racoon: NOTIFY: the packet is retransmitted by 130.120.124.8 [500] (1).

  12 Dec 18:51:09 FAKE-AUCH-GW racoon: INFO: IPsec - SA has expired: ESP/Transport 130.120.124.8 [500]-> 194.214.196.2 [500] spi = 95427747 (0x5b01ca3)

  12 Dec 18:51:09 FAKE-AUCH-GW racoon: WARNING: EXPIRES PF_KEY message received from core for SA under negotiation. Judgment of the negotiations.

  12 Dec 18:51:09 FAKE-AUCH-GW racoon: INFO: IPsec - SA has expired: AH / Transport 130.120.124.8 [500]-> 194.214.196.2 [500] spi = 159198575 (0x97d2d6f)

  12 Dec 18:51:09 FAKE-AUCH-GW racoon: INFO: answer for negotiation of the new phase 2: 194.214.196.2 [500]<=>130.120.124.8 [500]

  12 Dec 18:51:10 FALSE-AUCH-GW racoon: NOTIFY: the packet is retransmitted by 130.120.124.8 [500] (1).

  !###########################################

  ! Config of IOS running

  !

  crypto ISAKMP policy 10

  BA aes 256

  md5 hash

  preshared authentication

  Group 2

  ISAKMP crypto key MY-0WN-T3RR1F1C-PR35H4R3D-K3Y address 192.0.2.66 No.-xauth

  !

  !

  Crypto ipsec transform-set MY-0WN-TS-MD5 ah-md5-hmac esp - aes 256 esp-md5-hmac

  transport mode

  !

  card crypto ipsec-isakmp MY-0WN-map 1

  defined peer 192.0.2.66

  game of transformation-MY-0WN-TS-MD5

  PFS group2 Set

  match address 120

  !

  interface Tunnel0

  bandwidth 45000

  IP 198.51.100.1 255.255.255.252

  no ip redirection

  no ip proxy-arp

  IP 1400 MTU

  IP virtual-reassembly in

  IP tcp adjust-mss 1360

  source of tunnel GigabitEthernet0/0

  tunnel destination 192.0.2.66

  tunnel path-mtu-discovery

  bandwidth tunnel pass 45000

  bandwidth tunnel receive 45000

  !

  interface GigabitEthernet0/0

  IP 192.0.2.34 255.255.255.224

  no ip redirection

  no ip proxy-arp

  IP virtual-reassembly in

  full duplex

  Speed 1000

  GBIC media type

  auto negotiation

  Crypto map MY-0WN-map

  ###########################################

  Newspapers aside Linux

  Dec 12 08:18:30 racoon GLA: INFO: ISAKMP Security Association expired 192.0.2.66 [500] - 192.0.2.34 [500] spi: 88ed3c49ea8ffe38:e568a2dd27cbec5d

  Dec 12 08:18:30 racoon GLA: INFO: ISAKMP Security Association deleted 192.0.2.66 [500] - 192.0.2.34 [500] spi: 88ed3c49ea8ffe38:e568a2dd27cbec5d

  Dec 12 08:18:31 racoon GLA: INFO: respond new phase 1 negotiation: 192.0.2.66 [500]<=>192.0.2.34 [500]

  Dec 12 08:18:31 racoon GLA: INFO: mode of Identity Protection.

  Dec 12 08:18:31 racoon GLA: INFO: received Vendor ID: RFC 3947

  Dec 12 08:18:31 racoon GLA: INFO: received Vendor ID: draft-ietf-ipsec-nat-t-ike-07

  Dec 12 08:18:31 racoon GLA: INFO: received Vendor ID: draft-ietf-ipsec-nat-t-ike-03

  Dec 12 08:18:31 racoon GLA: INFO: received Vendor ID: draft-ietf-ipsec-nat-t-ike-02#012

  Dec 12 08:18:31 racoon GLA: INFO: received Vendor ID: DPD

  Dec 12 08:18:31 racoon GLA: INFO: received Vendor ID: draft-ietf-ipsra-isakmp-xauth-06.txt

  Dec 12 08:18:31 racoon GLA: [192.0.2.34] INFO: received INITIAL-CONTACT

  Dec 12 08:18:31 racoon GLA: INFO: ISAKMP - HIS established 192.0.2.66 [500] - 192.0.2.34 [500] spi: 88ed3c49e027808c:b17ba35c5b7f1e82

  Dec 12 08:18:31 racoon GLA: INFO: answer for negotiation of the new phase 2: 192.0.2.66 [500]<=>192.0.2.34 [500]

  [[Dec 12 08:18:31 racoon GLA: INFO: update generated politics: 192.0.2.34/32[0] 192.0.2.66/32[0] proto = all dir = in

  Dec 12 08:18:31 racoon GLA: INFO: IPsec - HIS established: AH / Transport 192.0.2.66 [500]-> 192.0.2.34 [500] spi = 88493238 (0x5464cb6)

  Dec 12 08:18:31 racoon GLA: INFO: IPsec - HIS established: ESP/Transport 192.0.2.66 [500]-> 192.0.2.34 [500] spi = 21367141(0x1460965)

  Dec 12 08:18:31 racoon GLA: INFO: IPsec - HIS established: AH / Transport 192.0.2.66 [500]-> 192.0.2.34 [500] spi = 1579505880 (0x5e2558d8)

  Dec 12 08:18:31 racoon GLA: INFO: IPsec - HIS established: ESP/Transport 192.0.2.66 [500]-> 192.0.2.34 [500] spi = 838280164 (0x31f723e4)

  Could adjust your game of transformation?

  Right now you have: crypto ipsec transform-set MY-0WN-TS-MD5 ah-md5-hmac esp - aes 256 esp-md5-hmac

  Could you change strictly cela ESP or AH on both sides rather than mix them.

  There is a known issue with the ASR and the mixture AH / ESP in ipsec configuration. I'll post below:

  CSCtb60545 / CSCsv96390

  Mixing protocols AH and ESP in transformation defined on ASR may not work. This is an enhancement request who will introduce support for this.

  Symptoms:

  Router can display as a result of messages to the console:
  % 3-ACE-TRANSERR: ASR1000-ESP (14): IKEA trans 0x27E; opcode 0 x 60; Param 0x2A.
  error 0 x 5; Retry cnt 0
  Conditions:
  This symptom is observed on a Cisco ASR1000 series router when works as an IPSec
  final point, and when nested transformation is applied, such as:
  Crypto ipsec transform-set transform-1 ah-sha-hmac esp-3des esp-md5-hmac
  Crypto ipsec transform-set transform-1 ah-md5-hmac esp-3des esp-md5-hmac
  Workaround solution:
  Remove the unsupported configuration.

• VPN site to Site stuck in IKE Phase 1 - MM_WAIT_MSG2

  We do a vpn site-to site. The tunnel has worked before, but after some discussions about the location of ASA_Receiving (no change in config for asa made, this asa is directly connected to the internet) will not return the tunnel upward. The devices can ping each other without problem.

  It is a vpn L2L, I wonder if the guy saying user is related to the issue?

  ASA_Initiator

  IKE Peer: 71.13.xxx.xxx
  Type: user role: initiator
  Generate a new key: no State: MM_WAIT_MSG2

  ASA_Receiving

  # show crypto isakmp his

  There is no isakmp sas

  Hey,.

  is the remote end ASA as well?

  If so, the capture below on the ASA:

  capture capout match udp host host interface

  The tunnel gets stuck on MM_WAIT_MSG2 for 2 reasons:

  1 either a problem with the policies of the phase 1 of the remote end or

  2 UDP 500 is not reaching the remote end or the remote end sends the packet UDP 500 back and can't the ASA local.

  Concerning

• subVIs does not function when it is called by main secondary to vi

  Hi all

  I have a main.vi that loads the façade into a secondary four subVIs when selected. Like most applications, everything works fine up to come to build the project (.exe). Program works as expected when run it from .exe but when all the vi.lib functions (for example reading png Subvi) is included in one of the subVIs called, the façade is loaded correctly, but the Subvi is not running and the invoke node (perform a VI generates error 1003).

  I've included the subVIs in 'Always include' in the specification to build under the heading Source files.

  Help, please

  Thank you

  I made a significant change to your "called" sub - VI (I created an icon for it - you'll see why it's important in a minute) and again your main VI.  This code snippet is saved in LabVIEW 2015, but it is simple enough that you should be able to recreate it in any LabVIEW version you are using.

  

  I like to use references static VI (the first thing on the block diagram) because, especially if they are associated with a Subvi with an icon, they provide a mnemonic, robust and easy to get a lot of useful sub - VI 'properties' (for example the path) without worrying about the execution environment.  In particular, they work very well with the Start function Asynchronous Call, I think it's much simpler to use than the VI server method.  I'll walk you through it...

  1. Start with a static reference of VI to the Subvi to run asynchronously.  If your Subvi has an icon, it will appear (as shown here) in the body of the static VI reference, which makes it slightly better documented.  Notice the Red Star on top of the static reference - which indicates a reference strictly - type (right click and choose strictly typed), you need to the asynchronous call start.
  2. This reference gets first wired to a property node - the unusual appearance of the node ('VI Interface Type 2') comes from the strictly typed reference.  We choose the Path property.
  3. The path gets plugged into an open VI reference function.  Because we use asynchronous Start Call (Forget), we specify Option 0 x 80 (glance using reference VI open for further explanation).  We also wire the Strict Type of step 1 at the entrance to this function Type.
  4. The VI reference resulting is wired to Start Asynchronous Call, which starts the called sub - VI.
  5. We also spend it to Insert Secondary VI method, which shows the sub - VI running in the Sub panel.
  6. Now, we interact with the sub - VI in the Sub panel as much as we want to.
  7. In the main routine, we now run the while loop, waiting simply Stop pressing.  I placed a 100 msec waiting here to give priority to the Subvi.
  8. When leaving us, we remove the sub - VI of the Sub panel, he abandoned and get out.  I see no need to put a function exit here - if you want to automatically close the main façade, just do it.

  Bob Schor

  P.S. - I've tested (LabVIEW 2015) and it works fine.

• Queue return error out when calling Subvi in vi main

  Hello

  I have problems with the help of queues in a project where it is called a Subvi VI main. After the Subvi call first, when I press any button labview returns following error.

  "LabVIEW: an input parameter is not valid." For example if the input is a path, the path can contain a character not allowed by the operating system such as? or @ ".»

  Please find attached the file explore vi and project. I'd appreciate your comments.  I use the suite of Labview 2010 development.

  Kind regards

  Austin

  Hello Austin,.

  Looks like you post your queue in the sub vi when it ends (destroy force is set to TRUE so it destroys the queue, not only the reference to the queue)

  I tested it by putting a hell structure diagram around the queue of the vi in the sub vi version and it works now without raising an error.

  Setting Force destroy false so that it destroys only a single reference to the queue.

  Chris

• 2 screws open when I double-click on main.vi in the project manager

  When I opened my main.vi project vi another Manager opens with her. Not really a problem but a little strange and annoying. LV2011.

  If it's always the same VI which opens, VI is probably ready to open the front panel when loading.  Look in the properties of VI-> the appearance of the window-> customize.  Right Left side, the bottom box.

• OfficeJet Pro 8600 not giving orientation options when printing photos from the main tray

  Greetings, all.

  I searched this issue, but I have not found anything, so this is:

  I have an OfficeJet Pro 8600 911 and an iMac (21.5 inch, end 2013) running OS X 10.9.2 Mavericks.

  The problem comes when I try to print a photo 4 x 6 from the main drawer - in the print dialog box, the image is oriented the wrong way on the preview. No matter if I rotate the image or not, it does a perpendicular orientation. In the print dialog box, there is no orientation option to change from portrait to landscape or vice versa, even if

  I checked the software update of the Mac and the Pro 8600, but there is nothing available.

  I am pleased to learn that the Preview will allow you adjust orientation, at least, we know that this is possible. Apple is the one controlling the features such as that within the application. Click here: view contact information of apples. Apple Support Forums are also available here:

  Kind regards

• VPN - failure IKE Phase 1

  Hi all

  IM challenges with a site to site vpn where it cannot be initiated/based on one side of the VPN.

  For 1 side of the vpn, I could ping everywhere without problems and vpn tunnel is established successfully, but when I try it the other side of the vpn it never sets and the State is stuck in MM_KEY_EXCH.

  I have verfied configurations at both ends and everything seems to be going well (see below), also, please find an isakmp crypto debugging attached to the router that does not seem to establish the vpn - no idea why this is a failure?

  VPN is set up on a C837 to a C857.

  ***

  crypto ISAKMP policy 10

  the BA
  md5 hash
  preshared authentication
  Group 2
  secret key crypto ISAKMP address 81.140.73.140 No.-xauth
  !
  life 3000 seconds crypto ipsec security association
  !
  Crypto ipsec transform-set esp course - esp-md5-hmac
  !
  vpn 10 ipsec-isakmp crypto map
  defined by peer 81.140.73.140
  secure Set transform-set
  match address VPN-traffic

  ***

  Thank you very much

  That could very well be causing this problem.

  If you have the static configuration to the dynamic for IPsec between two routers, please make sure that you have this configuration:

  http://www.Cisco.com/en/us/Tech/tk583/TK372/technologies_configuration_example09186a0080093f86.shtml

  You see that the dynamic IP site has a normal static encryption card, but the side static IP has a dynamic encryption card.

  This example assumes that you do NAT too.

  With this configuration, the tunnel can only be started from the dynamic side.

  It will be useful.

  Federico.

• APEX 5 - page partial refresh of specific IR refreshing all IR regions when they are in a "main" region

  I created a page with several interactive reports. The main report at the top is a report of "companies". All other reports are partial reports (addresses, Contacts, etc.). I have a page that I put the value with javascript (company code) by clicking on a line from 'Companies' parent report. I have a dynamic action on the change of the page element, which then updates from subreports in society, they have chosen. When interactive reports are not in a region, it works very well. When I try to put them all inside a region main standard HTML page/visual layout purposes, they do not work and looks like it is refreshing to all reports (including the main ' firms' one). When I separate everything out of the main area, they all work very well yet. All subreports have a condition in the SQL query to limit the rows in the place where company_id =: P2_COMPANY_ID. The ir companies, does not have this condition. Right now, I just them removed from the main area, but I wonder if it is a bug.

  Hi Jen,

  We agree it shouldn't / desired behavior and filed bug #21207953 for what should be fixed in the first series of patch 5.0.1.

  During this time, John has proposed the following solution for me, which just is to reorganize a little, your regions such as the IRs child are not direct descendants of the parent IR so maybe you have something like this:

  IRR1

  IRR2

  IRR3

  That could be changed to:

  R1

  IRR1

  R2

  IRR2

  IRR3

  Where R1 and R2 use models of simple region (for example 'white with attributes' the universal theme) which show nothing visually on your page, and because they are no longer the direct descendants of level higher IRR, prevent you unwanted refreshment.

  Kind regards

  Anthony.