To use Online Certificate Status Protocol
(OCSP) for verifying the revocation status of certificates, you
must configure the firewall to access an OCSP responder (server).
The entity that manages the OCSP responder can be a third-party
certificate authority (CA). If your enterprise has its own public
key infrastructure (PKI), you can use external OCSP responders or
you can configure the firewall itself as an OCSP responder. For
details on OCSP, see Certificate
when you generate a new
certificate so that the firewall populates the Authority Information
Access (AIA) field with the appropriate URL and then specify the
new certificate in the Certificate Profile. Configuring a Certificate
Profile does not override the Certificate Profile for existing certificates
or Root CAs.
You can enable OCSP validation or
override the AIA field of certificate in the Certificate Profile. The
Certificate Profile configuration determines which certificate validation
mechanisms are used on certificates that authenticate to services
hosted on the firewall, such as GlobalProtect.
an external OCSP responder or configure the firewall itself as an
to identify the
responder (up to 31 characters). The name is case-sensitive. It
must be unique and use only letters, numbers, spaces, hyphens, and
If the firewall has more than one virtual system (vsys),
for the certificate.
the host name (recommended) or IP address of the OCSP responder.
You can enter an IPv4 or IPv6 address. From this value, PAN-OS automatically
derives a URL and adds it to the certificate being verified.
If you configure the firewall itself as an OCSP responder,
the host name must resolve to an IP address in the interface that
the firewall uses for OCSP services.
If you want the firewall to use the management interface
for the OCSP responder interface, enable OCSP communication on the firewall.
Otherwise, continue to the next step to configure an alternate interface.