misc/121368: Could Not open some sites from Windows Vista and Server 2008 when using FreeBSD as gw

[Nedosekin Vladislav]

>Number:         121368
>Category:       misc
>Synopsis:       Could Not open some sites from Windows Vista and Server 2008 when using FreeBSD as gw
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Mar 04 21:40:01 UTC 2008
>Closed-Date:
>Last-Modified:
>Originator:     Nedosekin Vladislav
>Release:        6.3 I386
>Organization:
-
>Environment:
FreeBSD gw3.****.corp 6.3-RELEASE FreeBSD 6.3-RELEASE #0: Wed Feb 27 10:08:54 EET 2008     root at gw3.****.corp:/usr/obj/usr/src/sys/PF  i386

>Description:
We are using FreeBSD as GateWay with PF.
And the problem is that some web-sites as Gmail.com or Msn.com are unavailable from machines with Vista or Server 2008 installed.
If use external or internal proxy (Kerio WinRoute, wich also goes through the same FreeBSD gw) they are opening correctly. 
Also in 6.1 version were problems with skype from such machines.
>How-To-Repeat:

>Fix:


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