[Dshield] reporting on firewall logs
shwn_rd at yahoo.com
Tue Oct 26 14:57:18 GMT 2004
I'd like to get some feedback/expertise on the process that I am using for reporting on firewall logs. Would this acurately reflect the profile of traffic through the firewall?
1. Extract the following fields: date, time, action, protocol, src IP, dst IP, src port, src address.
2. Divide log into three categories based on the direction of the traffic: incoming, outgoing, internal.
(This is done by using a list of internal IP blocks and pulling out the lines of the log based on the src and dst IP.
src 10.10.1.20, dst external_ip >outgoing.log
src external_ip, dst 10.10.1.20 >incoming.log
src 10.10.1.20, dst 10.10.1.50 >internal.log
3. Create reports from the three categories of log files: incoming, outgoing, internal.
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