order isakmp crypto problem
Hello, I can not enter the command "crypto isakmp policy 10" on a router 2801 config mode, running the C2801-IPVOICEKP-M operating system.
The problem is the word isakmp. This is where the command will fail.
I only have options for 'crypto, key, pki ca. There is no option for «crypto isakmp...» ».
Can anyone offer any suggestions?
Thank you kindly.
Hello
You will need an advanced security
K9 image to send the command of such encryption.
Sent by Cisco Support technique iPhone App
Tags: Cisco Security
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Deafult isakmp crypto personal - T3 IOS 15.2 (3)
Hi all
Wondering if the strategies presented in:
command 'show the default isakmp crypto policy'
are in force and can potentially be negotiated, even when I have an explicitly defined isakmp policy on allowing only configuration necessary to security protocols.
IOS is 15.2 (3) T3
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I think it will be the key to understanding:
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Cisco Internetwork Operating System software
(Tm) C2600 software IOS (C2600-IK9S-M), Version 12.2(17a), RELEASE SOFTWARE (fc1)
Copyright (c) 1986-2003 by cisco Systems, Inc.
Updated Friday 19 June 03 16:35 by pwade
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Randall,
TAC is more an organization of break-fix. The question that you run by being more a features/functionality with the version of the code, TAC will probably able to help.
Your best option is to upgrade the memory and upgrade the router to 12.3 Mainline or higher.
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Kind regards
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Cisco #crypto?
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Cisco IOS software, software C880 (C880DATA-UNIVERSALK9-M), Version 15.0 (1) M8, RELEASE SOFTWARE (fc1)
Technical support: http://www.cisco.com/techsupport
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License IDU:
-------------------------------------------------
Device SN # PID
-------------------------------------------------
* 0 FTX1624812T CISCO881-SEC-K9
License information for "c880 - data".
License level: advsecurity Type: Permanent
Next reboot license level: advsecurity
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What kind of module you are missing? Or you are missing the "crypto isakmp" command that is not available in your impression?
If it is just the command, then go to conf-mode where you can configure isakmp and search commands «crypto isakmp...» ».
Sent by Cisco Support technique iPad App
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Is there something with the 2821 that does not support ikev2? I don't remember see whatever it is in the release notes, saying: it is only supported on specific models.
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Hello
I did the Setup for Hub/spoke in th DMVPN case and it worked fine. But after reloading Hub and I saw an output of error below, well I added the command invalid-spi-recovery isakmp crypto in the Hub & spokes:
* 7 Oct 03:10:03.175: CRYPTO-4-RECVD_PKT_INV_SPI %: decaps: rec would be package IPSEC a bad spi to destaddr = 150.1.1.1, prot = 50, spi = 0 x 72662541 (1919296833), port = 150.3.1.3
* 7 Oct 03:10:03.175: CRYPTO-4-RECVD_PKT_INV_SPI %: decaps: rec would be package IPSEC a bad spi to destaddr = 150.1.1.1, prot = 50, spi = 0 x 72662541 (1919296833), port = 150.2.1.2
Note: spoke1 IP address: 150.2.1.2/spoke2's IP address:150.3.1.3/Hub's IP address: 150.1.1.1
My temporary solution for the same problem, I need to erase SPI by manually and it worked fine again.
Everyone has the same problem, please let me know
Kind regards
TRAN
Hello
There is a common misconception of what the invalid-spi-recovery crypto isakmp command does. Even without this command IOS already performs a kind of recovery invalid SPI feature by sending a DELETION notify for the SA has received send peer If she already has an IKE SA with this peer. Still once, this happens regardless of whether the order invalid-spi-recovery crypto isakmp is enabled or not.
With the order of isakmp crypto invalid-spi-recovery , he tries to regulate the condition where a router receives the IPSec traffic with invalid SPI and
It doesn't have an IKE SA with this peer. In this case, it will try to put in place a new IKE session with the peer and then send a DELETION notification on the newly created HIS IKE. However, this command does not work in all configurations of crypto. Are the only configurations that this command works cryptographic instantiated, for example, Asit, and peer static maps from static cryptographic cards where the peer is defined explicitly. Here is a summary of commonly used configurations of crypto and know if invalid spi recovery works with this configuration or not:
Crypto config Not valid-spi-recovery? Static crypto map YES Dynamic crypto map NO. P2P GRE with TP YES using love TP w / static PNDH mapping YES using love TP w / dynamic PNDH mapping NO. ASIT YES EzVPN client N/A For help with your scenario, you can enable DPD (isakmp crypto keepalive) on the shelf to help the recovery tunnel.
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"no nat-traversal crypto isakmp" after restart
Hello
With the version of the Software ASA 8.0, we noticed that whenever restart us tha device, the configuration line:
No encryption isakmp nat-traversal
appears in the configuration.
It is very annoying, because this NAT - T obviously does not work.
Any of you noticed that too?
Ideas?
Thank you very much.
Marco Pizzi.
Hi Marco,.
This is a bug in the version of the ASA 8.x software and there are workarounds:
CSCsj52581 Details of bug
No inconsistent configuration of nat-traversal isakmp crypto after reboot
Symptom:
After a restart of the ASA at the global order "no isakmp encryption".
NAT-traversal.
appears in the running-config even it is not available in the
startup-config.
Conditions:
None
Steps to reproduce:
BSNs-ASA5505-1 (config) # nat-traversal crypto isakmp
BSNs-ASA5505-1 (config) # copy run start
BSNs-ASA5505-1 (config) # sh run all | NAT Inc
Crypto isakmp nat-traversal 20
BSNs-ASA5505-1 (config) # sh start | NAT Inc
BSNs-ASA5505-1 (config) #.
After reloading of the ASA:
BSNs-asa5505-1 # sh run all | NAT Inc
No encryption isakmp nat-traversal
BSNs-asa5505-1 # sh start | NAT Inc
asa5505-BSNs-1 #.
Workaround solution:
(1) use a default value, for example, "crypto isakmp nat-traversal 21.
(2) to activate the "crypto isakmp nat-traversal" after the restart of the ASA if you
You can use the default value. The default value is: crypto isakmp
NAT-traversal 20
Radim
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Can someone tell me or point me to the right direction to find out, what is / was the subject of the order "crypto isakmp ccm. ?
I need to explain to a customer, and I can't find any information on this subject. I checked every reference command 12.x and I didn't find a thing.
I've seen many examples of configs with "no crypto isakmp ccm", but nowhere can I find an explanation on this subject,
Concerning
Ariel,
CCM stands for Protocol of CCM (CCMP).
The message 'no ccm isakmp crypto' is not
of all fear, because it's just letting you know that you have not implemented the Optional Protocol of the CCM (CCMP).
CCMP is a data security protocol that handles authentication and encryption package. Privacy, CCMP uses AES in counter mode. For authentication and integrity, the CCMP uses Cipher Block Chaining Message Authentication Code (CBC - MAC). In the IEEE 802.11i standard, CCMP uses a 128-bit key. The block size is 128 bits. The size of the CBC - MAC is
8 bytes and the size of Nuncio is 48 bits. There are two bytes of overhead IEEE 802.11. CBC - MAC, the Nuncio and the overload of IEEE 802.11 enlarge the CCMP 16 bytes only one unencrypted IEEE 802.11 packet
package. Although somewhat slow, the biggest package is not a bad exchange for increased security.
CCMP protects some of the fields that are not encrypted. Additional parts of the IEEE 802.11 frame get protected are known as additional authentication (AAD) data. AAD includes source and destination packages and protects against attacks from re-reading of the packages to different destinations.
Let me know if it helps.
Kind regards
Arul
-
Hello
I've been trying to set up a virtual private network and when I ran this command earlier I received a lot of output and everything seemed ok.
I could see also dest, src, etc... When I ran isakmp crypto his.
All of a sudden I have nothing now, even when I debug above. His crypto isakmp command is now empty, too, see below.
crypto ISAKMP his
IPv4 Crypto ISAKMP Security Association
status of DST CBC State conn-id slot
Suggests that the problem is with the remote end? I'd always get the display using debug crypto isakmp if the remote end is down to debug?
Just puzzled as to why the power has disappeared 'quiet '.
Thank you
Hello
There could be several reasons for the same thing:
--> Interesting traffic or other remote or local end has been interrupted for any reason any.
--> That the ASA has been showing some debugs earlier, it is unlikely that the package can't the ASA now which in turn will hit the crypto ACL (interesting traffic) triggering therefore Cryptography tunnels and debugs him.
--> There could be changes in configuration to the remote end ASA because of which the tunnel is not triggered.
The best way to solve this problem is to follow the VPN traffic or the package for tunnel VPN from its source to its destination.
I recommend the following:
- Take screenshots on the SAA hence traffic is running and see if it's the ACL crypto. Check the ACL has hit counts for the same.
http://www.Cisco.com/en/us/products/ps6120/products_tech_note09186a0080a9edd6.shtml
- Select "debug crypto isakmp 127' & see if the tunnel is triggered and debugging is generated.
- If not, then run the packet tracer and see if the VPN traffic passes all the checks, and that he is authorized by the VPN.
- If traffic is allowed under the VPN to tracers of package Phase, and you still do not see the traffic being passed through the VPN, then it might a possibility that is happening in a different tunnel and pressing a crypto ACL overlap (as appropriate) on the same source ASA.
- If the package is not seen hitting the firewall of the above capture, then the package can't certainly ASA and you will need to check the internal routing.
- You can also see that the syslogs on the ASA local drops because of any function of firewall for VPN traffic destined for.
To respond to your request, if the remote end has been down you wouldn't see debugs it unless the host is launch of traffic to the VPN to the local line. If the VPN traffic has been initiated by behind the ASA remote, and it is down then you would see not all debugs on the ASA local.
I would like to know once you have reduced it more so that we can move forward and I'll be in a better position to provide my next course of action on this.
Hope this has been informative.
Kind regards
Nick
P.S. Please mark this post as solved if the information above has helped you identify the problem or at least you move forward to resolve the issue so that other users are benifited too
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