SIM Analysis of Firewall Logs

Hi

we have 6 firewalls - 2 of them facing Internet , 4 internal

We are analysing their log using a leading SIM solution

Looking for help in identifying meaningful/actionable reports that we
can get from Firewall log analysis


-- From DENY traffic

-- Currently we take daily reports on - Top 10 attacked ports,Top 10
attacked IPs etc. I am not sure if these Top 10 are meaningful or any
action can be taken using this


-- From ACCEPT/PERMIT traffic
-- I really have no clue on what we can report on this.Top 10 traffic
generators or something


-- Firewall configuration changes

--Currently we are generating daily reports on Changes to rulebase,
changes to firewall objects etc