IPSEc - life operation behavior

Similar Questions

• VPN-block end-of-life operating systems

  Is it possible to configure the client AnyConnect or ASA to block some operating systems? End of support for Windows XP is April 8^th and we want to deny Windows XP after the end of support date. Thanks in advance.

  You can use the HostScan function for this. But this requires AnyConnect Premium and will not work with AnyConnect Essentials.

• Configuration of a timeout for an IPSEC tunnel

  With a VPN connection from site to site between two Cisco 837 s, is it possible that I can set up the IPSEC tunnel to be razed after a period of inactivity and, then, the tunnel is built again when more traffic is passed?

  Hi mitchen

  A sense (but probably not what you're looking for), to "timeout" the IPSEC Session is to use the SA IPSEC-life expectancy.

  If the connection is still required (crypto acl are triggered) the connection will be restored, otherwise it will be demolished.

  HIS life is without delay of inactivity but it is used to "re-authenticate/restore / offer more security" for the IPSEC tunnel on a regular basis.

  With a "Newer" IOS, there is a feature called:

  seconds of downtime ipsec crypto - security association

  This can be created or specified by peers worldwide.

  You will find all the details here:

  http://www.Cisco.com/en/us/partner/products/SW/iosswrel/ps1839/products_feature_guide09186a00801541d4.html#wp1027129

  "Remember messages useful rate."

  Greetings

  Jarle

  Greetings

  Jarle

• Equium A110-276: can I update the BIOS when installing Vista?

  I don't know where to post this...

  "I have a clean install of Windows Vista on my satellite A110-276. I have to update the BIOS or not? Is - mandatory/mandatory BIOS update?

  Hello

  It seems that Toshiba has released a special version of the BIOS for Windows Vista.
  If you want you can check it on the page of the Toshiba driver.

  But if your Vista runs correctly on the computer laptop with the previous version of BIOS you n don't need to update the BIOS.
  I recommend updating BIOS, if any odd operational behavior will appear.

• First installation on Satellite A500 - 14 k does not end

  Hello world

  I'm French, Taylor my name is, I 26.
  I just got my new PC, a Satellite A500 - 14 k. The first facility started more than 2 hours ago and I still have a blank screen in which it is written:

  "
  Please wait...

  The end of the installation may take several minutes. Do not interrupt the process and do not turn off the computer
  "

  I would like to know if it is normal installation take so long or if there is a problem.
  If there is a problem, what should I do?
  Thanks for your help: o)

  Thibault.

  This isn't a normal life installation behavior seems the laptop hang somewhere
  Try to repeat the installation.
  Simply turn on the notebook, and then press F8, choose repair my computer and choose new window called Toshiba HDD recovery.

  Follow the instructions on the screen and complete the installation.

• ASA SHA2 support with self-signed certificates

  Is it possible to use the signature SHA2 algorithm generating a certificate self-signed on an ASA? I can't find any documentation on orders that have control of things like the signature algorithm when you use self-signed certificates. I have seen documentation SHA2 is supported from 8.4.2 for the signature algorithm, but it always refers to the import of a certificate from an external certification authority.

  Hi William,.

  You can only generate self-signed certificate on the SAA SHA1. The solution is to import a certificate from a 3rd party with signature SHA2 algorithm.

  Here is the value for the same application:-

  ASA support for SHA - 2 for crypto IPsec and operations of the public key infrastructure
  CSCuj67576
  https://Tools.Cisco.com/bugsearch/bug/CSCuj67576/?reffering_site=dumpcr
  
  Kind regards
  Dinesh Moudgil

  PS Please rate helpful messages.

• Site to site VPN configuration... Please it is urgent

  I WANT to CREATE THE SITE to SITE VPN... Then my friend send me to configure this setting, and I did not now how to set it up for CLI... Please someone can help me how to set up

  Thank you allllllll

  MODEM ROUTER VPN PEER IS 155.155.155.X

  IKE parameters

  Encryption Key Exchange = 3DES

  The integrity of the data / MD5 hash algorithm of ==

  Diffie-Hellman Group 1 phase is group 2

  IPSec life (seconds) is 86400

  IKE SA Lifetime (seconds = 86400

  -----------------------------------------------------------------------------------------------------------------------

  IPSEC settings

  UDP encapsulation = YES

  PROTOCOL IS ESP

  IPSEC = 3DES

  DATA INTEGRITITY = MD5

  PROTECT THE NETWORK = 192.168.80.0

  
  

  
  

  
  

  
  

  
  

  
  

  Here are two examples-

  http://packetlife.net/blog/2011/Jul/11/LAN-LAN-VPN-ASA-5505/

  http://www.networking-forum.com/wiki/ASA_VPNs

  Thank you

  Ajay

• If I config ISAKMP (phase 1) duration shorter than the life expectancy of IPsec (phase 2). What's going to happen.

  Since I couldn't find any document from Cisco (Cisco produces only that, the longer life ISAKMP, safer) of the directive.

  I was wondering if I config life ISAKMP (phase 1) shorter than the life expectancy of IPsec (phase 2). What happens when I still have the traffic through the VPN, the ISAKMP his timeout reachs tunnel. Phase 2 would also got laid off, and turn all the negotiation of Phase 1 VPN again?

  Any help will be appreciated.

  -Angela

  Angela:

  We probably need to consider the context of your use of the term "session".

  If you had to define an ACL crypto that consisted of a single access control entry (example: 192.168.1.0 ip allow 0.0.0.255 192.168.2.0 0.0.0.255), which would be generally * lead to the creation of an ISAKMP security association unique and two IPSec security associations. Lets call it a "session encryption.

  As you said, the implementation of the session "encryption" was triggered by a "session" (for example: TCP) between two hosts (each behind their respective ends of the tunnel). Additional meetings (for example: TCP) between different hosts on two sites, do not need other IPSec security associations. Security associations previously established IPSec supports all traffic defined by the ACE in the ACL crypto.

  For each extra ACE in your ACL crypto, you would see the creation of a pair of IPSec security associations (assuming traffic defined by the ACE triggers it) extra.

  If you need to set the layer 4 criteria (e.g.: TCP port 80) in an ACL crypto, that would be horrible. IPSec security associations are negotiated for each combination of source/target port used by a host. For example: A single host visiting a single web site (by the crypto tunnel), would open in general multiple TCP sessions (each with a different source port), and IPSec security associations are negotiated for each TCP session. This would quickly deplete resources on the cryptographic endpoints.

  We generally use P2P GRE or love with IPSec to swap info dynamic routing between sites. Because the traffic between sites is encapsulated in GRE, only a single proxy is needed.

  edg01 #show crypto ipsec his

  Interface: Tunnel0
  Tag crypto map: addr Tunnel0-head-0, local

  protégé of the vrf: (none)
  local ident (addr, mask, prot, port): (/ 255.255.255.255/47/0)
  Remote ident (addr, mask, prot, port): (/ 255.255.255.255/47/0)

  In this case, a single proxy is used. IP addresses are external physical IP addresses of crypto tunnel endpoints. Mode of transportation (where the 255.255.255.255 masks). The '47' is the GRE protocol.

  * Note: Sometimes, each cryptographic peer begins negotiations with the other, causing two bidirectional redundant ISAKMP SAs.

  Best regards

  Mike

• Question about the life of the IPSec Security Association

  Hi all

  I'm confused about life. A book, they said that you should service life of the peer to keep two exact same, otherwise you can not establish the tunnel. But I saw another book says you can use different to life (time interval or byte count), two peers will choose the lower one.

  Please help me. Thanks in advance.

  Banlan

  There are two lives involved with IPSec, Phase 1 (ISAKMP) and Phase 2 (IPSec) connections.

  With the Phase 1 tunnel, if the initiator has a longer life than that the answering machine, the answering machine does not accept the connection, then it is certainly preferable to keep your the same Phase 1 lives.

  Phase 2, life will be negotiated at the lower of the two values regardless of intiates, if it is not serious. Always advised to keep living the same since you can run questions of negotiation with devices from different vendors.

• behavior of an initial page request life cycle.

  I have a doubt in the behavior of Adf life cycle.

  It is said that for a claim only for the phases of restore and make response are executed.

  lets say I have a page (edit.jspx) with departments view instance removed as a form with the confirmation key.

  I asked for this page for the first time and brought a few changes and press the confirmation button.

  It will change in the database without posting because it's the original application.

  Please correct my agreement on the life cycle of ADF.

  When you click the validation button, is not an initial claim, so the validation occurs. An initial request (from point of view of the edit.jspx) was when you emptied into the page.

  Dimitar

• Strange behavior while making the table operation DOUBLE... !

  Hello
  
  Can we do DML/DDL operation on table DOUBLE?
  
  To know the answer, I have done below the operation and found a strange behavior...
  
  -run 5 times...
  INSERT INTO DOUBLE
  VALUES ('P');
  
  commit;
  
  Select * twice;
  o/p-
  MODEL
  1 P
  2 P
  3 P
  4 P
  5 P
  
  ---------------------------------
  updated double
  MODEL of value = "K";
  commit;
  
  Select * twice;
  o/p-
  MODEL
  2 h
  2 P
  3 P
  4 P
  5 P
  
  Odd: 1 single line update... Why? I was updating all the lines.
  
  If I run new update of command like below...
  
  updated double
  set MODEL = 'K', where dummy = "P";
  commit;
  
  Select * twice;
  o/p-
  MODEL
  2 h
  1 h
  3 P
  4 P
  5 P
  
  STRANGE: Now next updated record with 'K'... like that, if I run 5 times this o/p is as below...
  
  MODEL
  2 h
  1 h
  6.
  4 K
  6: 00
  -------------------------------------
  REMOVE double; -This also has data of delting 1 by 1 row... Why?
  
  Can anyone tell me about this operation of behaivor?
  
  Please provide any information about the DML/DDl operation on DUAl
  
  Rgds,
  PC

  http://asktom.Oracle.com/pls/asktom/f?p=100:11:7955478831730544:P11_QUESTION_ID:1562813956388

  Tom says:

  Let me start by saying:-DOUBLE is owned by SYS. SYS is the owner of the data dictionary,
  so DOUBLE fits in the data dictionary. You must not modify the data dictionary
  through SQL ever - weird things can and will happen - you are just a few of
  them. We can do a lot of strange things happen in Oracle by updating the data dictionary.
  It is recommended, supported or a very good idea.

  Double is just a convienence table. You do not need to use it, you can use anything you
  Here you are. The advantage to double is the optimizer includes double is a special line, a
  column table - when it is used in queries, it uses this knowledge during the development of the
  plan.
  ...
  the optimizer includes double is a special, magical table 1 row... It's just the way it works. If all goes well
  you reset double back to 1 row after your tests, or you've just totally broken your database!
  .. .dual = magic. Dual is a table of a line but with more than 1 or less is
  dangerous. You update the data dictionary. You should expect naturally very bad
  things are happening.

• Error message: this operation requires an interactive window station while trying to install drivers for Microsoft Life Chat LX-3000 and Microsoft Wireless Mobile Mouse 6000

  Okay, so I bought recently when a helmet (Microsoft LifeChat LX-3000) and a mouse (Microsoft Wireless Mobile Mouse 6000) wireless, but my laptop Windows Vista Home Premium is having problems with the installation and execution of the drivers for these two devices.

  Original title: driver for headset and a wireless mouse will not install correctly

  I already had the Wireless Mobile Mouse 3000 and had no problems whatsoever doing this job, but I got it for at least a year I guess. I also installed the software that came with the CD (called Microsoft Mouse, even though it says on the CD Intellipoint 7.1) for the mouse and driver online for headphones (called helmet Microsoft) have also downloaded. However, when I plug in the devices, he's trying to find the drivers. Initially, it comes up with a window saying "New hardware found" and has the ability to "locate and install driver software", despite the fact that I already supposed to be installed the drivers through download programs or to use the CD.

  In any case, I select the "locate and install driver software" and it says "search Windows Update... «for 30 seconds or so, then said «Installing the driver software...» ».

  I then get a message saying "Windows has encountered a problem... etc... This operation requires an interactive window station. If you know the manufacturer of your device, you can visit their website and check the support section for driver software. »

  If I disconnect and reconnect the device, I get the same situation with "new hardware found" and the options for search again...

  I tried both devices on another computer (Windows XP) and they manage to set up automatically even without the software provided on the CD or on the website and work perfectly well, however I need them working on my laptop ;)

  So I guess the main problem is that I get this message "interactive window station" preventing the drivers to install correctly. I have no idea what this means and have spent a lot of time trying to find them online.

  Well, I've resorted to re - install Windows Vista and installed very well both automatically when it is plugged.

  Now to reinstall all my programs... fun fun fun...

  Thanks for your help anyway!

• Strange behavior of ISR G2 IPSec

  Hello everyone,

  I have 2911-SEC/K9 router with IOS 151 - 4.M7. I use IPSec + DMVPN. parameters are the following:

  crypto ISAKMP policy 20
  BA aes 256
  Group 24
  invalid-spi-recovery crypto ISAKMP
  ISAKMP crypto keepalive 10

  Crypto ipsec transform-set * value-name * esp - aes 256 esp-sha512-hmac

  Profile of crypto ipsec * profile-name *.
  transform-Set * value-name *.

  int tunnelXXX

  * dmvpn settings *.

  Ipsec-tunnel protection profile * profile-name * shared

  With these settings, I was able to load my string of 100 MB/s only for 15 mb/s and CPU at 99%

  Some strange outputs:

  #sh crypto eli
  Hardware encryption: ASSETS
  Number of hardware encryption engines = 1

  CryptoEngine VPN details aboard: State = Active
  Capacity: IPPCP, OF THE, 3DES, AES, IPv6, GDOI, FAILCLOSE, HA

  IPSec-Session: 0 active, 3200 max, 0 failed

  #sh crypto isakmp his count
  Active safety ISAKMP: 5

  #sh crypto isakmp his

  IPv4 Crypto ISAKMP Security Association
  DST CBC conn-State id
  10.*. *. * 10.*. *. * QM_IDLE 1044 ACTIVE
  10.*. *. * 10.*. *. * QM_IDLE 1045 ACTIVE

  #sh flat REB

  IPSEC           D               D                3         N/A

  Could not encrypt pkts: 0
  Could not decrypt pkts: 0
  Could not encrypt pkt bytes: 0
  Could not decrypt pkt bytes: 0
  Spent encrypt pkts: 5747239
  Past pkts to decrypt: 5750789
  Spent encrypt pkt bytes: 2974407264
  Passed to decrypt pkt bytes: 4220119968

  Therefore, IPSec works, but why sh crypto eli is not show it? Why only 15 mb/s?

  UPD: Same with 881-SEC/K9 and 871

  #sh cry eli
  Hardware encryption: ASSETS
  Number of hardware encryption engines = 1

  CryptoEngine VPN details aboard: State = Active
  Capacity: IPPCP, OF THE, 3DES, AES, IPv6, GDOI, FAILCLOSE

  IPSec-Session: 0 active, max, 100 0 failed

  3945e (nodal point) shows very well:

  Crypto eli HS
  Hardware encryption: ASSETS
  Number of hardware encryption engines = 1

  CryptoEngine VPN details aboard: State = Active
  Capacity: IPPCP, OF THE, 3DES, AES, IPv6, GDOI, FAILCLOSE, HA

  IPSec-Session: 66 active, 6399 max, 0 failed

  All devices using 151 - 4.M7

  You can check my fault see the crypto ipsec his | I run to see if particular flow IPsec is handled by software/hardware/external engine. My * guess * is that sha512 is originally the IPsec flows be managed by software, which is causing the high CPU and poor performance. There are a LOT of questions that I have here, discussing the problems of performance through forums is always tricky... you can check with TAC if you want answers fast and strong.

• Is IN the behavior of the operator in deterministic?

  Hello world

  My version of DB is

  BANNER

  ----------------------------------------------------------------

  Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - 64bi

  PL/SQL Release 10.2.0.1.0 - Production

  CORE 10.2.0.1.0 Production

  AMT for Linux: Version 10.2.0.1.0 - Production

  NLSRTL Version 10.2.0.1.0 - Production

  Please watch these queries below. (executed in schema Scott)

  Q.Find on employees who are also Manager?

  Select * from emp where empno in (select emp mgr); -This request is to get employees who are responsible.

  Q.Find on employees who are not responsible?

  Select * from emp where empno not in (select emp mgr); -This request is not to pick up anything. Why so much?

  For employees who are not responsible that I wrote the following query.

  Select * from emp e where there is no (select 1 m emp where e.empno = m.mgr);

  So my question is, why 'not in' operator does not work here in the case of no matching record, while 'in' operator is able to pick up the corresponding records?

  Kind regards

  BS2014.

  Question of the NULL values returned by the subquery.

  Select * from emp where empno in (4711,1522, NULL);

  is translated into

  EmpNo = 4711 GOLD empno = 1522 GOLD empno = NULL

  one of the 3 conditions has to be completed for the State as a whole to be true

  Select * from emp where empno in (4711,1522, NULL);

  is translated into

  EmpNo! = 4711 AND empno! = 1522 AND empno! = NULL

  all 3 conditions must be met because they are connected by an AND

  Problem:

  EmpNo! = NULL will never be like the correct way to check against NULL IS NOT true and not! =

  So what should take you this:

  If you have a subquere connected to the master using a NOT IN query, then make sure that no NULL values are in the result set of the subquery.

  In your case:

  Select * from emp where empno not in (select mgr from emp where Bishop is not null);

  HTH

• SMS and call does not work after a long operating life

  I use the flame, stable channel, and after a few hours I do not receive calls or Sms I have to wake up the phone or restart.

  When it occurs, my ears calling the ring but my phone does not ring. I get text messages hours after that they sent to Bern.

  This problem makes the phone useless, especially for everyday use!

  Hello
  You can try the latest stable or nightly builds of flame versions. We always recommend to use the stable versions. Current stable version is Firefox OS 1.4
  From here you can download versions:
  1.4 Firefox OS: Firefox OS 1.4 - flame
  Nightly: Firefox, OS every night - flame.
  Also, there has a picture of Nightly Build available for the flame of Codingfree informal. You can download it here. | Versions of Firefox OS

  Although we do not recommend to use every night, if you wish, you can try.
  Concerning