Snort mailing list archives
Re: Tagged Packet
From: Dirk Geschke <dirk () geschke-online de>
Date: Sun, 22 Jan 2006 14:52:16 +0100
Hi Joel,
The recommendation to disable stream4 is very bad :)
jipp, this is really a bad solution. But this will definitively remove the tagged packets...
Stream4 is not in charge of fragmentation, frag3 is. Stream4 does tcp conversation reconstruction. If you disable Stream4 you will render ALOT of rules totally null and void.
You can fragment IP packets on Layer 3, this is reassembled by frag3. But you can also fragment on Layer 4, this is reassembled by stream4 by recreating the full session. Think of telnet, is is not unlikely that every byte is sent by an individual packet. (Before people ask, the "normal" telnet client uses line buffering only on ports unequal to 23.) To call this fragmentation or to reserve this to IP packets which got fragmented is another question... Best regards Dirk ------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems? Stop! Download the new AJAX search engine that makes searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! http://sel.as-us.falkag.net/sel?cmd=lnk&kid=103432&bid=230486&dat=121642 _______________________________________________ Snort-users mailing list Snort-users () lists sourceforge net Go to this URL to change user options or unsubscribe: https://lists.sourceforge.net/lists/listinfo/snort-users Snort-users list archive: http://www.geocrawler.com/redir-sf.php3?list=snort-users
Current thread:
- Tagged Packet marco turr (Jan 21)
- Re: Tagged Packet Dirk Geschke (Jan 21)
- Re: Tagged Packet marco turr (Jan 21)
- Re: Tagged Packet Jason (Jan 21)
- Re: Tagged Packet Dirk Geschke (Jan 22)
- Re: Tagged Packet Joel Esler (Jan 22)
- Re: Tagged Packet Dirk Geschke (Jan 22)
- Re: Tagged Packet Jason Brvenik (Jan 22)
- Re: Tagged Packet Dirk Geschke (Jan 22)
- Re: Tagged Packet Jason Brvenik (Jan 22)
- Re: Tagged Packet Dirk Geschke (Jan 23)
- Re: Tagged Packet marco turr (Jan 21)
- Re: Tagged Packet Dirk Geschke (Jan 21)