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How to figure out what ACL rules to add to wide open ASA

At the moment there are some new cisco ASA's in a network that at the end of the every ACL have a permit, "any any" so nothing gets blocked.

I am now tasked with locking it down. Is there a way I can see what connections have been used, to what IP, port, etc so I can create rules off those?

This is a production network, so I can't just lock it down, then try to figure out what to open back up.
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fgasimzade
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You can use ASDM with logging enabled to see connections in real time
Do you only need to lock down outside-in connections? Or do they also want you to limit outgoing traffic?
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LIBBB

ASKER

Lock down outside-in connections.
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Ernie Beek
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Well I guess i"m goign to have to keep the real time connection log going for a while, and just note the connections through out the day.

Its a pretty big network. The sources could be coming from many different /24, to many different services/ports.

Just suprised there's not a better way to do it.