Table Of Contents

Configuring Security Certificate Exchange Between Cisco Adaptive Security Appliance and Microsoft Access Edge Using VeriSign

How to Configure the Security Certificates on Cisco Adaptive Security Appliance

Deleting the Old Certificates and Trustpoints

Generating a New Trustpoint for VeriSign

Importing the Root Certificate

Generating the Certificate Signing Request

Submitting the Certificate Signing Request to VeriSign

Deleting the Certificate Used for the Certificate Signing Request

Importing the Intermediate Certificate

Creating a Trustpoint for the Root Certificate

Importing the Root Certificate

Importing the Signed Certificate

Importing the VeriSign Certificates onto Microsoft Access Edge

Configuring Security Certificate Exchange Between Cisco Adaptive Security Appliance and Microsoft Access Edge Using VeriSign

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June 18, 2013

•How to Configure the Security Certificates on Cisco Adaptive Security Appliance

•Importing the VeriSign Certificates onto Microsoft Access Edge

How to Configure the Security Certificates on Cisco Adaptive Security Appliance

•Deleting the Old Certificates and Trustpoints

•Generating a New Trustpoint for VeriSign

•Importing the Intermediate Certificate

•Importing the Root Certificate

•Generating the Certificate Signing Request

•Submitting the Certificate Signing Request to VeriSign

•Deleting the Certificate Used for the Certificate Signing Request

•Importing the Intermediate Certificate

•Creating a Trustpoint for the Root Certificate

•Importing the Root Certificate

•Importing the Signed Certificate

Deleting the Old Certificates and Trustpoints

This procedure describes how to delete the old intermediate and signed certificate, and the trustpoint for the root certificate on Cisco Adaptive Security Appliance.

Before You Begin

Ensure you carried out the configuration tasks described in the following chapters:

•Configuring Cisco Unified Presence for SIP Federation

•Configuring Cisco Adaptive Security Appliance for SIP Federation

Procedure

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Step 1 Enter config mode, type:

>Enable 

>password

>config t

Step 2 Enter this command to display the trustpoints:

show crypto ca trustpoints

Step 3 Enter this command to delete the trustpoint and associated certificates:

no crypto ca trustpoint <name of trustpoint>

The following warning output displays:

WARNING: Removing an enrolled trustpoint will destroy all

certificates received from the related Certificate Authority.

Step 4 Enter yes when you are prompted to delete the trustpoint.

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What To Do Next

Generating a New Trustpoint for VeriSign

Generating a New Trustpoint for VeriSign

Procedure

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Step 1 Enter config mode, type:

>Enable 

>password

>config t

Step 2 Enter this command to generate the key pair for this certification:

crypto key generate rsa label keys_for_verisign 

Step 3 Enter the following sequence of commands to create a trustpoint for Cisco Unified Presence:

crypto ca trustpoint <name of trustpoint>

(config-ca-trustpoint)# enrollment terminal

(config-ca-trustpoint)# subject-name cn=<fqdn>, 
OU=<organisational_unit>,O=<organisation_name>,C=<country>,St=<state>,L=<locality>

(config-ca-trustpoint)# keypair keys_for_verisign

(config-ca-trustpoint)# fqdn none

(config-ca-trustpoint)# exit

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Note If you are submitting a renewal certificate signing request (CSR) file to VeriSign, the subject-name value must contain the following information:

•Country (two letter country code only)

•State (no abbreviations)

•Locality (no abbreviations)

•Organization Name

•Organizational Unit

•Common Name (FQDN) - This value must be the FQDN of the public Cisco Unified Presence.

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Troubleshooting Tips

Enter the command show crypto key mypubkey rsa to check that the key pair is generated.

What To Do Next

Importing the Intermediate Certificate

Importing the Root Certificate

Before You Begin

Complete the steps in Generating a New Trustpoint for VeriSign.

Procedure

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Step 1 Enter config mode, type:

>Enable 

>password

>config t

Step 2 Enter this command to import the certificate onto Cisco Adaptive Security Appliance:

crypto ca authenticate  <name of trustpoint>

Step 3 Enter the CA certificate, for example:

-----BEGIN CERTIFICATE-----

MIIDAzCCAmwCEQC5L2DMiJ+hekYJuFtwbIqvMA0GCSqGSIb3DQEBBQUAMIH...

-----END CERTIFICATE-----

quit

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Note Finish with the word "quit" on a separate line.

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Step 4 Enter yes when you are prompted to accept the certificate.

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What To Do Next

Generating the Certificate Signing Request

Generating the Certificate Signing Request

Before You Begin

Complete the steps in Importing the Root Certificate.

Procedure

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Step 1 Enter config mode, type:

>Enable 

>password

>config t

Step 2 Enter this command to send an enrollment request to the CA:

crypto ca enroll <name of trustpoint>

The following warning output displays:

%WARNING: The certificate enrollment is configured with an fqdn

that differs from the system fqdn. If this certificate will be

used for VPN authentication this may cause connection problems.

Step 3 Enter yes when you are prompted to continue with the enrollment.

% Start certificate enrollment..

% The subject name in the certificate will be: <fqdn>, 
OU=<organisational_unit>,O=<organisation_name>,C=<country>,St=<state>,L=<locality>

Step 4 Enter no when you are prompted to include the device serial number in the subject name.

Step 5 Enter yes when you are prompted to display the certificate request in the terminal.

The certificate request displays.

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What To Do Next

Submitting the Certificate Signing Request to VeriSign

Submitting the Certificate Signing Request to VeriSign

When you submit the Certificate Signing Request, VeriSign will provide you with the following certificate files:

•verisign-signed-cert.cer (signed certificate)

•trial-inter-root.cer (subordinate intermediate root certificate)

•verisign-root-ca.cer (root CA certificate)

Save the certificate files in separate notepad files once you have downloaded them.

Before You Begin

•Complete the steps in Generating the Certificate Signing Request.

•You will need the challenge password that you defined when generating the Certificate Signing Request.

Procedure

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Step 1 Go to the VeriSign website.

Step 2 Follow the procedure to enter a Certificate Signing Request.

Step 3 When prompted, submit the challenge password for the Certificate Signing Request.

Step 4 Paste the Certificate Signing Request into the window provided.

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Note You need to paste from -----BEGIN CERTIFICATE----- to -----END CERTIFICATE----- inclusive.

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What To Do Next

Deleting the Certificate Used for the Certificate Signing Request

Deleting the Certificate Used for the Certificate Signing Request

You must delete the temporary root certificate used to generate the Certificate Signing Request.

Before You Begin

Complete the steps in Submitting the Certificate Signing Request to VeriSign.

Procedure

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Step 1 Enter config mode, type:

>Enable 

>password

>config t

Step 2 Enter this command to display the certificates:

show running-config crypto ca

look for crypto ca certificate chain <name of trustpoint>

Step 3 Enter this command to delete the certificate:

(config)# crypto ca certificate chain <name of trustpoint>

(config-cert-chain)#  no certificate ca 00b92f60cc889fa17a4609b85b70$

The following warning output displays:

WARNING: The CA certificate will be disassociated from this trustpoint and

will be removed if it is not associated with any other trustpoint.  Any

other certificates issued by this CA and associated with this trustpoint

will also be removed.

Step 4 Enter yes when you are prompted to delete the trustpoint.

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What To Do Next

Importing the Intermediate Certificate

Importing the Intermediate Certificate

Before You Begin

Complete the steps in Deleting the Certificate Used for the Certificate Signing Request.

Procedure

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Step 1 Enter config mode, type:

>Enable 

>password

>config t

Step 2 Enter this command to import the certificate onto Cisco Adaptive Security Appliance:

crypto ca authenticate <name of trustpoint>

Step 3 Enter the CA certificate, for example:

-----BEGIN CERTIFICATE-----

MIIEwDCCBCmgAwIBAgIQY7GlzcWfeIAdoGNs+XVGezANBgkqhkiG9w0BAQU....

-----END CERTIFICATE-----

quit

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Note Finish with the word "quit" on a separate line.

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Step 4 Enter yes when you are prompted to accept the certificate.

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What To Do Next

Creating a Trustpoint for the Root Certificate

Creating a Trustpoint for the Root Certificate

Before You Begin

Complete the steps in Importing the Intermediate Certificate.

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Step 1 Enter config mode, type:

>Enable 

>password

>config t

Step 2 Enter this command to generate the trustpoint:

crypto ca trustpoint verisign_root

Step 3 Enter the following sequence of commands:

(config-ca-trustpoint)# revocation-check none

(config-ca-trustpoint)# keypair keys_for_verisign

(config-ca-trustpoint)# enrollment terminal

(config-ca-trustpoint)# exit

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Importing the Root Certificate

Before You Begin

Complete the steps in Creating a Trustpoint for the Root Certificate.

Procedure

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Step 1 Enter config mode, type:

>Enable 

>password

>config t

Step 2 Enter this command to import the certificate onto Cisco Adaptive Security Appliance:

crypto ca authenticate  verisign_root

Step 3 Enter the CA certificate, for example:

-----BEGIN CERTIFICATE-----

MIICmDCCAgECECCol67bggLewTagTia9h3MwDQYJKoZIhvcNAQECBQAw....

-----END CERTIFICATE-----

quit

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Note Finish with the word "quit" on a separate line.

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Step 4 Enter yes when you are prompted to accept the certificate.

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What To Do Next

Importing the Signed Certificate

Importing the Signed Certificate

Before You Begin

Complete the steps in Importing the Root Certificate.

Procedure

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Step 1 Enter config mode, type:

>Enable 

>password

>config t

Step 2 Enter this command to import the certificate onto Cisco Adaptive Security Appliance:

crypto ca import verisignca certificate

The following warning output displays:

WARNING: The certificate enrollment is configured with an fqdn

that differs from the system fqdn. If this certificate will be

used for VPN authentication this may cause connection problems.

Step 3 Enter yes when you are prompted to continue with the certificate enrollment.

Step 4 Enter the CA certificate, for example:

-----BEGIN CERTIFICATE-----

MIIFYTCCBEmgAwIBAgIQXtEPGWzZ0b9gejHejq+HazANBgkqhkiG9w0B....

-----END CERTIFICATE-----

quit

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Note Finish with the word "quit" on a separate line.

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Step 5 Enter yes when you are prompted to accept the certificate.

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What To Do Next

Importing the VeriSign Certificates onto Microsoft Access Edge

Importing the VeriSign Certificates onto Microsoft Access Edge

This procedure describes how to import the VeriSign root and intermediate certificates onto the Microsoft Access Edge server.

Before You Begin

Save the certificates that were provided by VeriSign to the Access Edge server, for example, in C:\.

Procedure

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Step 1 On the Access Edge server, enter mmc from the run command.

Step 2 Select File-> Add/Remove Snap-in.

Step 3 Click Add.

Step 4 Click Certificates.

Step 5 Click Add.

Step 6 Select Computer account.

Step 7 Click Next.

Step 8 Select Local computer.

Step 9 Click Finish.

Step 10 Click OK to close the Add/Remove Snap-In window.

Step 11 In the main console, expand the Certificates tree.

Step 12 Open the Trusted Root Certificates branch.

Step 13 Right-click on Certificates.

Step 14 Select All Tasks > Import.

Step 15 Click Next on the certificate wizard.

Step 16 Browse for a VeriSign certificate in the C:\ directory.

Step 17 Click Place all certificates in the following store.

Step 18 Select Trusted Root Certification Authorities as the certificate store.

Step 19 Repeat steps 13 to 18 to import the additional VeriSign certificates.

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