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Cisco Bug: CSCvv73786 - ASA should use IPv4 for OCSP as a fallback method because IPv6 is not supported

Last Modified

Oct 01, 2020

Products (1)

  • Cisco ASA 5500-X Series Firewalls

Known Affected Releases


Description (partial)

ASA fails to perform CRL checking with the following error once it gets an IPV6 DNS entry:

CRYPTO_PKI: can not resolve server name/IP address
CERT-C: E pki_http.c(184) : Error #78ah

and it does not send an IPV4 query after that as a fallback method

OCSP responder is Anycast and CRL is enabled with FQDN
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