PF, packet sizes and icmp replies

2008-11-18 Thread denissia
Today I was shocked when I found, what PF doesn't support filtering by packets size and can't answer by admin-generated icmp code (for example, by icmp code 1 admin. prohibited). And don't tell me that it is useless. Packets size: We already had users attacks, then huge count of full- sized

reading pf log files on non Open BSD systems

2008-11-18 Thread Russell Fulton
Hi I run a dark net and feed data to one of the well known security organisations. I get the dark net data from the drop logs on our firewall by running tcpdump with appropriate filters. Up until now I have piped the data from tcpdump though a perl script to produce a standardised

Re: reading pf log files on non Open BSD systems

2008-11-18 Thread Stuart Henderson
On 2008/11/19 13:48, Russell Fulton wrote: Does anyone have any suggestions as to how we can get data in pf log files into pcap files that can be read (and filtered) on other systems. the packets have a struct pfloghdr header as described in pflog(4); this could be chopped off. I'm not aware

Re: PF, packet sizes and icmp replies

2008-11-18 Thread Ryan McBride
On Tue, Nov 18, 2008 at 10:36:48AM -0800, [EMAIL PROTECTED] wrote: Today I was shocked when I found, what PF doesn't support filtering by packets size and can't answer by admin-generated icmp code (for example, by icmp code 1 admin. prohibited). And don't tell me that it is useless. Packets

Re: reading pf log files on non Open BSD systems

2008-11-18 Thread Ryan McBride
On Wed, Nov 19, 2008 at 01:13:32AM +, Stuart Henderson wrote: On 2008/11/19 13:48, Russell Fulton wrote: Does anyone have any suggestions as to how we can get data in pf log files into pcap files that can be read (and filtered) on other systems. the packets have a struct pfloghdr