Deletion of an object which is being used (cannot happen in R80 by design). The list relates to the firewall versions R55-R77.30 with the added remediation means of R80, thanks to Tomer Sole's remarks on CheckMates CheckPoint Community forum as I myself haven’t gathered enough experience with this version yet. Here is my ‘top’ list of the frequent errors which beginners (and not so much) do. Different versions, different topologies and technologies brought different issues with it, but what remains constant is the mistakes people do.
In 10 years of my daily work with Checkpoint firewalls I have been to many troubleshooting sessions.
