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How can I confirm if this Cisco IOS c2800nm-spservicesk9-mz.124-9.T7.bin supports ipsec

Posted on 2008-10-23
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Last Modified: 2008-10-23
I have a Cisco 2800 series router with the following IOS c2800nm-spservicesk9-mz.124-9.T7.bin. I need to configure an IPsec peer to peer vpn on it. When I enter the command  " crypto ? " all i get is :

ca            Certification authority
engine        Enter a crypto engine configurable menu
key           Long term key operations
pki           Public Key components
provisioning  Secure Device Provisioning
wui           Crypto HTTP configuration interfaces

Does that mean the ios does not support IPsec? How do I confirm what feature this particular IOS supports?
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Question by:exagger
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Expert Comment

by:Mysidia
ID: 22785562
Cisco feature navigator, search by image name.
http://tools.cisco.com/ITDIT/CFN/jsp/index.jsp

And yes, this particular image appears to have some IPsec features...

http://tools.cisco.com/ITDIT/CFN/Dispatch?HMR_DDM=0&HIM_Id=924498&HDDMPlatFamDet=270&HDDMFeatSetDet=1383&HPN_Text=&Q1Submit=CONTINUE&act=rlsSelect&task=display

The crypto command in most versions  is used primarily to create and manage keys, check the available subcommands
i.e.
crypto ca ?
crypto key ?
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by:exagger
ID: 22785720
Yes, this is the tool i was looking for. It says the IOS supports IPsec through NAT translation and VPN tunnel management although this doesnt seem to be what I need. I need to be able to configure a peer to peer vpn using :

'crypto isakmp'- to define keys and policies
and 'crypto ipsec'- to configure the transform set

I suppose this IOS doesnt support that?
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Expert Comment

by:Paranormastic
ID: 22789788
Generally speaking, crypto stuff requires a "K9" (I think older is K8) version of the IOS.  By this I mean that there should be K9 as part of the version number.
You appear to have a K9 version, so yes it should support crypto command sets.

Make sure you are in config t when issuing the 'crypto' command..
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Author Comment

by:exagger
ID: 22790181
I am in config mode but these are the only options available

ca            Certification authority
engine        Enter a crypto engine configurable menu
key           Long term key operations
pki           Public Key components
provisioning  Secure Device Provisioning
wui           Crypto HTTP configuration interfaces

yet the ios has k9 in it.

?
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by:Paranormastic
ID: 22790351
Looking into this more, but here is the product sheet for the 2800 series.  All 2800 series support native IPSec using synchronous keysets (AES, 3DES, etc. - password/secret key based).  For a PKI (certificate) based you may need to get an AIM card to support that.

http://www.cisco.com/en/US/prod/collateral/routers/ps5854/ps5882/product_data_sheet0900aecd8016fa68_ps5854_Products_Data_Sheet.html
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Expert Comment

by:Paranormastic
ID: 22790469
Is this offline while you configure it?  Could you try just dumping a dummy config in there and see if that works?  Here' s a good clean sample - take out the password stuff so you don't mess yourself up...  or at least just don't write mem so you can just bounce to clean it.
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by:exagger
ID: 22790697
Its online.

I will try to dump a configuration outside working hours
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Mysidia earned 80 total points
ID: 22792808
The hardware may in general support it, but that particular software  image has only basic crypto and IPsec functions in software (at least without add-on cards for VPN capabilities).

An image with "IKE Security Protocol"  support, such as an "advanced security" image, an enterprise image, or (possibly) an advipservices K9 image for the platform
would provide more options.

Such as support for IKE key exchange (and therefore ISAKMP also).

It's a good  practice to look it up though and make sure a prospective image has the features you want, before  actually spending $$$ with the vendor to get the feature licenses.


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