On 2004-05-18 22:59, Norberto Meijome <[EMAIL PROTECTED]> wrote: > I saw this in my ipf.log (using ipfmon): > > 18/05/2004 15:57:21.092537 fxp0 @25:1 S w.x.y.z -> a.b.c.d PR tcp len 20 (40) frag > [EMAIL PROTECTED] IN > > where : > - fpx0 is my interface connected to the outside world > - w.x.y.z is an IP not related to any system under our control > - a.b.c.d is the public IP used for NATed traffic from our LAN. > - @25:1 is : @1 block in log quick from any to any with short group 25 > > Does the "S" after @25:1 mean it was a packet too short to be a proper > tcp packet?
The packet has the TCP SYN flag bit set (non-zero). > What does the frag [EMAIL PROTECTED] mean? IIRC, these are the length and starting offset, respectively, of the blocked fragment within the full IP packet. - Giorgos _______________________________________________ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
