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S2S VPN using MS CA certificates not working

dpbpc1962
Level 1
Level 1

Good day

I have install a W2K3 server with CA and created identity certificates for the two ASA 5505's, the certificate I created were using the IPEC intermediate offline template.... and I get the error of

"Certificate Chain invalid or not authorized"  in the logs

I did a CLI debug of the CA and the error is the same, but has futher error of

"Enhance Key Usage = NOT acceptable... I doesn't like the IPEC Intermediate Offline OID.

Does anyone have an up to date example of S2S VPN for ASA 8.4x/ASDM 6.4x using MS CA certificates? for I'm using the example from link below

http://www.cisco.com/en/US/products/ps6120/products_configuration_example09186a0080aa5be1.shtml

This is out of date by at least three years

Thanks

Dana Burton

1 Reply 1

dpbpc1962
Level 1
Level 1

Figured it out using

debug crypto ca 255

I turns out it is the OID of the MS CA certificate temple being used

the OID it needs is

IPSEC tunnel endpoint - 1.3.6.1.5.5.7.3.6

So I added this OID to the IPSEC Offline template using ADSIedit.msc on the MS CA server.

The newly add OID worked fine and the Identity certificate authenticated with now errors and S2S came up.

Dana Burton