I have an ASA5505 and the software Version is 7.2(4).
The problem is thet it stops passing traffic randomly, after a day or 1 hour or so on.
I can reach the ASA trough the outside interface using SSH but the inside interface is isolated.
The interfaces are up/up and there aren't errors.
I can't ping from the ASA to an inside host and vice versa.
The layer 2 seems to be working, if I clear the ASA's arp cache and then I try to ping, when I check the arp cache I've got a correct MAC address association.
What I get from ping command is "????" as an ACL is blocking it.
The only way to get it working again is to reboot.
Any help will be apreciated.