kern/140697: pf behaviour changes - must be documented

[Mohacsi Janos]

>Number:         140697
>Category:       kern
>Synopsis:       pf behaviour changes - must be documented
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          doc-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Nov 19 10:20:01 UTC 2009
>Closed-Date:
>Last-Modified:
>Originator:     Mohacsi Janos
>Release:        FreeBSD 6.4-STABLE i386
>Organization:
NIIF
>Environment:
System: FreeBSD mignon.ki.iif.hu 6.4-STABLE FreeBSD 6.4-STABLE #18: Tue Oct 27 16:19:23 CET 2009 root at mignon.ki.iif.hu:/usr/obj/usr/src/sys/MIGNON2 i386


	
>Description:
	The pf behaviour about the fragmented packets has been changed since 
FreeBSD 6.4-STABLE #17: Fri Jul  3 14:34:44 CEST 2009

At least to FreeBSD 6.4-STABLE #18: Tue Oct 27 16:19:23 CET 2009.

Before some changes in pf it was working without scrubbing. After the changes:
scrub in on <interface> no-df

must be configured to proper operation....

>How-To-Repeat:
	try earlier version of FreeBSD and latest 6.4 stable.
>Fix:

Document this pf changes .

>Release-Note:
>Audit-Trail:
>Unformatted: