Sometimes Memory usage shown could be wrong.The actual memory usage statistics can be viewed from the service account by entering bash-2.05a$ free.Try upgrading the software version to the latest patch is now 4.1(4f).Refer URL
The memory statistics in IDS 4.1 are not very accurate. They are based on the information that is used to calculate free memory in the "top" program. Unfortunately, "free" memory isn't a very good indication of "available" memory. If you run "top" from a service account, you need to add "free" and "cached" to get the actual amount of available memory.
There are no processes to kill to retrieve memory...the system is pared down already. Resetting the sensor is the recommended action if you feel memory is exhausted.
We have configured the outside and inside Interface with official ipv6 adresses, set a default route on outside Interface to our router, we also have definied a rule , which also gets hits, to permit tcp from inside Interface to any6.
In Syslog I also se...