I have a Certificate authority behind a PIX firewall... and I need some clients to access this CA to validate the digital certificates.... does anybody know which ports need to be opened to allow this functionality??
Depends on the CA. Microsoft CA's are web-based and only require TCP port 80. Check with your specific vendor's documentation to see what you need to allow through.
If you're still not sure, connect to it from an inside PC and try and see what ports it uses. If it's all web-based then TCP port 80 at least, but see if it maps to another port or something after the initial connection. A sniffer might help to. Once you have an idea of what ports, allow them through in the PIX then try a connection from the outside. If it doesn't work, enable syslog on the PIX and look for "deny" messages, they'll tell you what protocol and ports the PIX is denying through.
Table of ContentsIntroductionVersion HistoryPossible Future
UpdatesDocuments PurposeNAT Operation in ASA 8.3+ SectionsRule Types
Network Object NATTwice NAT / Manual NATRule Types used per SectionNAT
Types used with Twice NAT / Manual NAT and Network Obje...
Table of Contents Introduction:This document describes details on how
NAT-T works. Background: ESP encrypts all critical information,
encapsulating the entire inner TCP/UDP datagram within an ESP header.
ESP is an IP protocol in the same sense that TCP an...